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41c52197ea Run formatter 2025-08-25 18:52:55 +02:00
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a9c53b8b1e treefmt: add mdformat for markdown files 2025-08-25 18:40:30 +02:00
296 changed files with 4244 additions and 6578 deletions

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@@ -10,7 +10,7 @@ jobs:
if: github.repository_owner == 'clan-lol'
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v5
- uses: actions/checkout@v4
with:
persist-credentials: false
- uses: actions/create-github-app-token@v2

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@@ -1,4 +1,6 @@
# Contributing to Clan
<!-- Local file: docs/CONTRIBUTING.md -->
Go to the Contributing guide at https://docs.clan.lol/guides/contributing/CONTRIBUTING
Go to the Contributing guide at
https://docs.clan.lol/guides/contributing/CONTRIBUTING

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@@ -16,4 +16,3 @@ FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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@@ -1,45 +1,69 @@
# Clan core repository
Welcome to the Clan core repository, the heart of the [clan.lol](https://clan.lol/) project! This monorepo is the foundation of Clan, a revolutionary open-source project aimed at restoring fun, freedom, and functionality to computing. Here, you'll find all the essential packages, NixOS modules, CLI tools, and tests needed to contribute to and work with the Clan project. Clan leverages the Nix system to ensure reliability, security, and seamless management of digital environments, putting the power back into the hands of users.
Welcome to the Clan core repository, the heart of the
[clan.lol](https://clan.lol/) project! This monorepo is the foundation of Clan,
a revolutionary open-source project aimed at restoring fun, freedom, and
functionality to computing. Here, you'll find all the essential packages, NixOS
modules, CLI tools, and tests needed to contribute to and work with the Clan
project. Clan leverages the Nix system to ensure reliability, security, and
seamless management of digital environments, putting the power back into the
hands of users.
## Why Clan?
Our mission is simple: to democratize computing by providing tools that empower users, foster innovation, and challenge outdated paradigms. Clan represents our contribution to a future where technology serves humanity, not the other way around. By participating in Clan, you're joining a movement dedicated to creating a secure, user-empowered digital future.
Our mission is simple: to democratize computing by providing tools that empower
users, foster innovation, and challenge outdated paradigms. Clan represents our
contribution to a future where technology serves humanity, not the other way
around. By participating in Clan, you're joining a movement dedicated to
creating a secure, user-empowered digital future.
## Features of Clan
- **Full-Stack System Deployment:** Utilize Clan's toolkit alongside Nix's reliability to build and manage systems effortlessly.
- **Full-Stack System Deployment:** Utilize Clan's toolkit alongside Nix's
reliability to build and manage systems effortlessly.
- **Overlay Networks:** Secure, private communication channels between devices.
- **Virtual Machine Integration:** Seamless operation of VM applications within the main operating system.
- **Virtual Machine Integration:** Seamless operation of VM applications within
the main operating system.
- **Robust Backup Management:** Long-term, self-hosted data preservation.
- **Intuitive Secret Management:** Simplified encryption and password management processes.
- **Intuitive Secret Management:** Simplified encryption and password management
processes.
## Getting started with Clan
If you're new to Clan and eager to dive in, start with our quickstart guide and explore the core functionalities that Clan offers:
If you're new to Clan and eager to dive in, start with our quickstart guide and
explore the core functionalities that Clan offers:
- **Quickstart Guide**: Check out [getting started](https://docs.clan.lol/#starting-with-a-new-clan-project)<!-- [docs/site/index.md](docs/site/index.md) --> to get up and running with Clan in no time.
- **Quickstart Guide**: Check out
[getting started](https://docs.clan.lol/#starting-with-a-new-clan-project)<!-- [docs/site/index.md](docs/site/index.md) -->
to get up and running with Clan in no time.
### Managing secrets
In the Clan ecosystem, security is paramount. Learn how to handle secrets effectively:
In the Clan ecosystem, security is paramount. Learn how to handle secrets
effectively:
- **Secrets Management**: Securely manage secrets by consulting [Vars](https://docs.clan.lol/concepts/generators/)<!-- [secrets.md](docs/site/concepts/generators.md) -->.
- **Secrets Management**: Securely manage secrets by consulting
[Vars](https://docs.clan.lol/concepts/generators/)<!-- [secrets.md](docs/site/concepts/generators.md) -->.
### Contributing to Clan
The Clan project thrives on community contributions. We welcome everyone to contribute and collaborate:
The Clan project thrives on community contributions. We welcome everyone to
contribute and collaborate:
- **Contribution Guidelines**: Make a meaningful impact by following the steps in [contributing](https://docs.clan.lol/contributing/contributing/)<!-- [contributing.md](docs/CONTRIBUTING.md) -->.
- **Contribution Guidelines**: Make a meaningful impact by following the steps
in
[contributing](https://docs.clan.lol/contributing/contributing/)<!-- [contributing.md](docs/CONTRIBUTING.md) -->.
## Join the revolution
Clan is more than a tool; it's a movement towards a better digital future. By contributing to the Clan project, you're part of changing technology for the better, together.
Clan is more than a tool; it's a movement towards a better digital future. By
contributing to the Clan project, you're part of changing technology for the
better, together.
### Community and support
Connect with us and the Clan community for support and discussion:
- [Matrix channel](https://matrix.to/#/#clan:clan.lol) for live discussions.
- IRC bridge on [hackint#clan](https://chat.hackint.org/#/connect?join=clan) for real-time chat support.
- IRC bridge on [hackint#clan](https://chat.hackint.org/#/connect?join=clan) for
real-time chat support.

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@@ -302,8 +302,7 @@
"test-install-machine-without-system",
"-i", ssh_conn.ssh_key,
"--option", "store", os.environ['CLAN_TEST_STORE'],
"--target-host", f"nonrootuser@localhost:{ssh_conn.host_port}",
"--yes"
f"nonrootuser@localhost:{ssh_conn.host_port}"
]
result = subprocess.run(clan_cmd, capture_output=True, cwd=flake_dir)
@@ -327,9 +326,7 @@
"test-install-machine-without-system",
"-i", ssh_conn.ssh_key,
"--option", "store", os.environ['CLAN_TEST_STORE'],
"--target-host",
f"nonrootuser@localhost:{ssh_conn.host_port}",
"--yes"
f"nonrootuser@localhost:{ssh_conn.host_port}"
]
result = subprocess.run(clan_cmd, capture_output=True, cwd=flake_dir)

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@@ -1,10 +1,6 @@
---
description = "Set up dummy-module"
categories = ["System"]
features = [ "inventory" ]
______________________________________________________________________
[constraints]
roles.admin.min = 1
roles.admin.max = 1
---
description = "Set up dummy-module" categories = ["System"] features = \[
"inventory" \]
## [constraints] roles.admin.min = 1 roles.admin.max = 1

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@@ -1,68 +0,0 @@
This module enables hosting clan-internal services easily, which can be resolved
inside your VPN. This allows defining a custom top-level domain (e.g. `.clan`)
and exposing endpoints from a machine to others, which will be
accessible under `http://<service>.clan` in your browser.
The service consists of two roles:
- A `server` role: This is the DNS-server that will be queried when trying to
resolve clan-internal services. It defines the top-level domain.
- A `default` role: This does two things. First, it sets up the nameservers so
thatclan-internal queries are resolved via the `server` machine, while
external queries are resolved as normal via DHCP. Second, it allows exposing
services (see example below).
## Example Usage
Here the machine `dnsserver` is designated as internal DNS-server for the TLD
`.foo`. `server01` will host an application that shall be reachable at
`http://one.foo` and `server02` is going to be reachable at `http://two.foo`.
`client` is any other machine that is part of the clan but does not host any
services.
When `client` tries to resolve `http://one.foo`, the DNS query will be
routed to `dnsserver`, which will answer with `192.168.1.3`. If it tries to
resolve some external domain (e.g. `https://clan.lol`), the query will not be
routed to `dnsserver` but resolved as before, via the nameservers advertised by
DHCP.
```nix
inventory = {
machines = {
dnsserver = { }; # 192.168.1.2
server01 = { }; # 192.168.1.3
server02 = { }; # 192.168.1.4
client = { }; # 192.168.1.5
};
instances = {
coredns = {
module.name = "@clan/coredns";
module.input = "self";
# Add the default role to all machines, including `client`
roles.default.tags.all = { };
# DNS server
roles.server.machines."dnsserver".settings = {
ip = "192.168.1.2";
tld = "foo";
};
# First service
roles.default.machines."server01".settings = {
ip = "192.168.1.3";
services = [ "one" ];
};
# Second service
roles.default.machines."server02".settings = {
ip = "192.168.1.4";
services = [ "two" ];
};
};
};
};
```

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@@ -1,157 +0,0 @@
{ ... }:
{
_class = "clan.service";
manifest.name = "coredns";
manifest.description = "Clan-internal DNS and service exposure";
manifest.categories = [ "Network" ];
manifest.readme = builtins.readFile ./README.md;
roles.server = {
interface =
{ lib, ... }:
{
options.tld = lib.mkOption {
type = lib.types.str;
default = "clan";
description = ''
Top-level domain for this instance. All services below this will be
resolved internally.
'';
};
options.ip = lib.mkOption {
type = lib.types.str;
# TODO: Set a default
description = "IP for the DNS to listen on";
};
};
perInstance =
{
roles,
settings,
...
}:
{
nixosModule =
{
lib,
pkgs,
...
}:
{
networking.firewall.allowedTCPPorts = [ 53 ];
networking.firewall.allowedUDPPorts = [ 53 ];
services.coredns =
let
# Get all service entries for one host
hostServiceEntries =
host:
lib.strings.concatStringsSep "\n" (
map (
service: "${service} IN A ${roles.default.machines.${host}.settings.ip} ; ${host}"
) roles.default.machines.${host}.settings.services
);
zonefile = pkgs.writeTextFile {
name = "db.${settings.tld}";
text = ''
$TTL 3600
@ IN SOA ns.${settings.tld}. admin.${settings.tld}. 1 7200 3600 1209600 3600
IN NS ns.${settings.tld}.
ns IN A ${settings.ip} ; DNS server
''
+ (lib.strings.concatStringsSep "\n" (
map (host: hostServiceEntries host) (lib.attrNames roles.default.machines)
));
};
in
{
enable = true;
config = ''
. {
forward . 1.1.1.1
cache 30
}
${settings.tld} {
file ${zonefile}
}
'';
};
};
};
};
roles.default = {
interface =
{ lib, ... }:
{
options.services = lib.mkOption {
type = lib.types.listOf lib.types.str;
default = [ ];
description = ''
Service endpoints this host exposes (without TLD). Each entry will
be resolved to <entry>.<tld> using the configured top-level domain.
'';
};
options.ip = lib.mkOption {
type = lib.types.str;
# TODO: Set a default
description = "IP on which the services will listen";
};
};
perInstance =
{ roles, ... }:
{
nixosModule =
{ lib, ... }:
{
networking.nameservers = map (m: "127.0.0.1:5353#${roles.server.machines.${m}.settings.tld}") (
lib.attrNames roles.server.machines
);
services.resolved.domains = map (m: "~${roles.server.machines.${m}.settings.tld}") (
lib.attrNames roles.server.machines
);
services.unbound = {
enable = true;
settings = {
server = {
port = 5353;
verbosity = 2;
interface = [ "127.0.0.1" ];
access-control = [ "127.0.0.0/8 allow" ];
do-not-query-localhost = "no";
domain-insecure = map (m: "${roles.server.machines.${m}.settings.tld}.") (
lib.attrNames roles.server.machines
);
};
# Default: forward everything else to DHCP-provided resolvers
forward-zone = [
{
name = ".";
forward-addr = "127.0.0.53@53"; # Forward to systemd-resolved
}
];
stub-zone = map (m: {
name = "${roles.server.machines.${m}.settings.tld}.";
stub-addr = "${roles.server.machines.${m}.settings.ip}";
}) (lib.attrNames roles.server.machines);
};
};
};
};
};
}

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@@ -1,113 +0,0 @@
{
...
}:
{
name = "coredns";
clan = {
directory = ./.;
test.useContainers = true;
inventory = {
machines = {
dns = { }; # 192.168.1.2
server01 = { }; # 192.168.1.3
server02 = { }; # 192.168.1.4
client = { }; # 192.168.1.1
};
instances = {
coredns = {
module.name = "@clan/coredns";
module.input = "self";
roles.default.tags.all = { };
# First service
roles.default.machines."server01".settings = {
ip = "192.168.1.3";
services = [ "one" ];
};
# Second service
roles.default.machines."server02".settings = {
ip = "192.168.1.4";
services = [ "two" ];
};
# DNS server
roles.server.machines."dns".settings = {
ip = "192.168.1.2";
tld = "foo";
};
};
};
};
};
nodes = {
dns =
{ pkgs, ... }:
{
environment.systemPackages = [ pkgs.net-tools ];
};
client =
{ pkgs, ... }:
{
environment.systemPackages = [ pkgs.net-tools ];
};
server01 = {
services.nginx = {
enable = true;
virtualHosts."one.foo" = {
locations."/" = {
return = "200 'test server response one'";
extraConfig = "add_header Content-Type text/plain;";
};
};
};
};
server02 = {
services.nginx = {
enable = true;
virtualHosts."two.foo" = {
locations."/" = {
return = "200 'test server response two'";
extraConfig = "add_header Content-Type text/plain;";
};
};
};
};
};
testScript = ''
import json
start_all()
machines = [server01, server02, dns, client]
for m in machines:
m.systemctl("start network-online.target")
for m in machines:
m.wait_for_unit("network-online.target")
# import time
# time.sleep(2333333)
# This should work, but is borken in tests i think? Instead we dig directly
# client.succeed("curl -k -v http://one.foo")
# client.succeed("curl -k -v http://two.foo")
answer = client.succeed("dig @192.168.1.2 one.foo")
assert "192.168.1.3" in answer, "IP not found"
answer = client.succeed("dig @192.168.1.2 two.foo")
assert "192.168.1.4" in answer, "IP not found"
'';
}

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@@ -1,15 +1,18 @@
A Dynamic-DNS (DDNS) service continuously keeps one or more DNS records in sync
with the current public IP address of your machine.\
In *clan* this service is backed by
[qdm12/ddns-updater](https://github.com/qdm12/ddns-updater).
A Dynamic-DNS (DDNS) service continuously keeps one or more DNS records in sync with the current public IP address of your machine.
In *clan* this service is backed by [qdm12/ddns-updater](https://github.com/qdm12/ddns-updater).
> Info\
> ddns-updater itself is **heavily opinionated and version-specific**. Whenever
> you need the exhaustive list of flags or provider-specific fields refer to its
> *versioned* documentation **not** the GitHub README
> Info
> ddns-updater itself is **heavily opinionated and version-specific**. Whenever you need the exhaustive list of flags or
> provider-specific fields refer to its *versioned* documentation **not** the GitHub README
---
______________________________________________________________________
# 1. Configuration model
Internally ddns-updater consumes a single file named `config.json`.
Internally ddns-updater consumes a single file named `config.json`.\
A minimal configuration for the registrar *Namecheap* looks like:
```json
@@ -41,16 +44,17 @@ Another example for *Porkbun*:
}
```
When you write a `clan.nix` the **common** fields (`provider`, `domain`, `period`, …) are already exposed as typed
*Nix options*.
Registrar-specific or very new keys can be passed through an open attribute set called **extraSettings**.
When you write a `clan.nix` the **common** fields (`provider`, `domain`,
`period`, …) are already exposed as typed *Nix options*.\
Registrar-specific or very new keys can be passed through an open attribute set
called **extraSettings**.
---
______________________________________________________________________
# 2. Full Porkbun example
Manage three records `@`, `home` and `test` of the domain
`jon.blog` and refresh them every 15 minutes:
Manage three records `@`, `home` and `test` of the domain `jon.blog` and
refresh them every 15 minutes:
```nix title="clan.nix" hl_lines="10-11"
inventory.instances = {
@@ -80,7 +84,8 @@ inventory.instances = {
};
```
1. `secret_field_name` tells the *vars-generator* to store the entered secret under the specified JSON field name in the configuration.
1. `secret_field_name` tells the *vars-generator* to store the entered secret
under the specified JSON field name in the configuration.
2. ddns-updater allows multiple hosts by separating them with a comma.
3. The `api_key` above is *public*; the corresponding **private key** is retrieved through `secret_field_name`.
3. The `api_key` above is *public*; the corresponding **private key** is
retrieved through `secret_field_name`.

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@@ -1,4 +1,5 @@
This service will automatically set the emergency access password if your system fails to boot.
This service will automatically set the emergency access password if your system
fails to boot.
## Usage

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@@ -1,5 +1,6 @@
The importer module allows users to configure importing modules in a flexible and structured way.
It exposes the `extraModules` functionality of the inventory, without any added configuration.
The importer module allows users to configure importing modules in a flexible
and structured way. It exposes the `extraModules` functionality of the
inventory, without any added configuration.
## Usage
@@ -21,6 +22,6 @@ inventory.instances = {
};
```
This will import the module `modules/base.nix` to all machines that have the `all` tag,
which by default is every machine managed by the clan.
And also import for all machines tagged with `zone1` the module at `modules/zone1.nix`.
This will import the module `modules/base.nix` to all machines that have the
`all` tag, which by default is every machine managed by the clan. And also
import for all machines tagged with `zone1` the module at `modules/zone1.nix`.

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@@ -32,4 +32,5 @@ The service provides these commands:
- `localbackup-create`: Create a new backup
- `localbackup-list`: List available backups
- `localbackup-restore`: Restore from backup (requires NAME and FOLDERS environment variables)
- `localbackup-restore`: Restore from backup (requires NAME and FOLDERS
environment variables)

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@@ -14,4 +14,3 @@ inventory.instances = {
This service will eventually set up a monitoring stack for your clan. For now,
only a telegraf role is implemented, which exposes the currently deployed
version of your configuration, so it can be used to check for required updates.

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@@ -1,8 +1,13 @@
The `sshd` Clan service manages SSH to make it easy to securely access your machines over the internet. The service uses `vars` to store the SSH host keys for each machine to ensure they remain stable across deployments.
The `sshd` Clan service manages SSH to make it easy to securely access your
machines over the internet. The service uses `vars` to store the SSH host keys
for each machine to ensure they remain stable across deployments.
`sshd` also generates SSH certificates for both servers and clients allowing for certificate-based authentication for SSH.
`sshd` also generates SSH certificates for both servers and clients allowing for
certificate-based authentication for SSH.
The service also disables password-based authentication over SSH, to access your machines you'll need to use public key authentication or certificate-based authentication.
The service also disables password-based authentication over SSH, to access your
machines you'll need to use public key authentication or certificate-based
authentication.
## Usage

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@@ -0,0 +1,37 @@
This service generates the `system.stateVersion` of the nixos installation
automatically.
Possible values:
[system.stateVersion](https://search.nixos.org/options?channel=unstable&show=system.stateVersion&from=0&size=50&sort=relevance&type=packages&query=stateVersion)
## Usage
The following configuration will set `stateVersion` for all machines:
```
inventory.instances = {
state-version = {
module = {
name = "state-version";
input = "clan";
};
roles.default.tags.all = { };
};
```
## Migration
If you are already setting `system.stateVersion`, either let the automatic
generation happen, or trigger the generation manually for the machine. The
service will take the specified version, if one is already supplied through the
config.
To manually generate the version for a specified machine run:
```
clan vars generate [MACHINE]
```
If the setting was already set, you can then remove `system.stateVersion` from
your machine configuration. For new machines, just import the service as shown
above.

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@@ -0,0 +1,50 @@
{ ... }:
{
_class = "clan.service";
manifest.name = "clan-core/state-version";
manifest.description = "Automatically generate the state version of the nixos installation.";
manifest.categories = [ "System" ];
manifest.readme = builtins.readFile ./README.md;
roles.default = {
perInstance =
{ ... }:
{
nixosModule =
{
config,
lib,
...
}:
let
var = config.clan.core.vars.generators.state-version.files.version or { };
in
{
warnings = [
''
The clan.state-version service is deprecated and will be
removed on 2025-07-15 in favor of a nix option.
Please migrate your configuration to use `clan.core.settings.state-version.enable = true` instead.
''
];
system.stateVersion = lib.mkDefault (lib.removeSuffix "\n" var.value);
clan.core.vars.generators.state-version = {
files.version = {
secret = false;
value = lib.mkDefault config.system.nixos.release;
};
runtimeInputs = [ ];
script = ''
echo -n ${config.system.stateVersion} > "$out"/version
'';
};
};
};
};
}

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@@ -3,16 +3,14 @@ let
module = lib.modules.importApply ./default.nix { };
in
{
clan.modules = {
coredns = module;
};
clan.modules.state-version = module;
perSystem =
{ ... }:
{
clan.nixosTests.coredns = {
clan.nixosTests.state-version = {
imports = [ ./tests/vm/default.nix ];
clan.modules."@clan/coredns" = module;
clan.modules."@clan/state-version" = module;
};
};
}

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@@ -0,0 +1,22 @@
{ lib, ... }:
{
name = "service-state-version";
clan = {
directory = ./.;
inventory = {
machines.server = { };
instances.default = {
module.name = "@clan/state-version";
module.input = "self";
roles.default.machines."server" = { };
};
};
};
nodes.server = { };
testScript = lib.mkDefault ''
start_all()
'';
}

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@@ -15,6 +15,7 @@
Now the folder `~/syncthing/documents` will be shared with all your machines.
## Documentation
## Documentation
Extensive documentation is available on the [Syncthing](https://docs.syncthing.net/) website.
Extensive documentation is available on the
[Syncthing](https://docs.syncthing.net/) website.

View File

@@ -46,7 +46,8 @@
## Migration from `root-password` module
The deprecated `clan.root-password` module has been replaced by the `users` module. Here's how to migrate:
The deprecated `clan.root-password` module has been replaced by the `users`
module. Here's how to migrate:
### 1. Update your flake configuration

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@@ -1,17 +1,23 @@
# Wireguard VPN Service
This service provides a Wireguard-based VPN mesh network with automatic IPv6 address allocation and routing between clan machines.
This service provides a Wireguard-based VPN mesh network with automatic IPv6
address allocation and routing between clan machines.
## Overview
The wireguard service creates a secure mesh network between clan machines using two roles:
- **Controllers**: Machines with public endpoints that act as connection points and routers
The wireguard service creates a secure mesh network between clan machines using
two roles:
- **Controllers**: Machines with public endpoints that act as connection points
and routers
- **Peers**: Machines that connect through controllers to access the network
## Requirements
- Controllers must have a publicly accessible endpoint (domain name or static IP)
- Peers must be in networks where UDP traffic is not blocked (uses port 51820 by default, configurable)
- Controllers must have a publicly accessible endpoint (domain name or static
IP)
- Peers must be in networks where UDP traffic is not blocked (uses port 51820 by
default, configurable)
## Features
@@ -24,24 +30,33 @@ The wireguard service creates a secure mesh network between clan machines using
## Network Architecture
### IPv6 Address Allocation
- Base network: `/40` ULA prefix (deterministically generated from instance name)
- Base network: `/40` ULA prefix (deterministically generated from instance
name)
- Controllers: Each gets a `/56` subnet from the base `/40`
- Peers: Each gets a unique 64-bit host suffix that is used in ALL controller subnets
- Peers: Each gets a unique 64-bit host suffix that is used in ALL controller
subnets
### Addressing Design
- Each peer generates a unique host suffix (e.g., `:8750:a09b:0:1`)
- This suffix is appended to each controller's `/56` prefix to create unique addresses
- This suffix is appended to each controller's `/56` prefix to create unique
addresses
- Example: peer1 with suffix `:8750:a09b:0:1` gets:
- `fd51:19c1:3b:f700:8750:a09b:0:1` in controller1's subnet
- `fd51:19c1:c1:aa00:8750:a09b:0:1` in controller2's subnet
- Controllers allow each peer's `/96` subnet for routing flexibility
### Connectivity
- Peers use a single WireGuard interface with multiple IPs (one per controller subnet)
- Controllers connect to ALL other controllers and ALL peers on a single interface
- Peers use a single WireGuard interface with multiple IPs (one per controller
subnet)
- Controllers connect to ALL other controllers and ALL peers on a single
interface
- Controllers have IPv6 forwarding enabled to route traffic between peers
- All traffic between peers flows through controllers
- Symmetric routing is maintained as each peer has consistent IPs across all controllers
- Symmetric routing is maintained as each peer has consistent IPs across all
controllers
### Example Network Topology
@@ -131,12 +146,14 @@ graph TB
### Advanced Options
### Automatic Hostname Resolution
The wireguard service automatically adds entries to `/etc/hosts` for all machines in the network. Each machine is accessible via its hostname in the format `<machine-name>.<instance-name>`.
The wireguard service automatically adds entries to `/etc/hosts` for all
machines in the network. Each machine is accessible via its hostname in the
format `<machine-name>.<instance-name>`.
For example, with an instance named `vpn`:
- `server1.vpn` - resolves to server1's IPv6 address
- `laptop1.vpn` - resolves to laptop1's IPv6 address
@@ -153,16 +170,19 @@ ssh user@laptop1.vpn
## Troubleshooting
### Check Wireguard Status
```bash
sudo wg show
```
### Verify IP Addresses
```bash
ip addr show dev <instance-name>
```
### Check Routing
```bash
ip -6 route show dev <instance-name>
```
@@ -170,19 +190,23 @@ ip -6 route show dev <instance-name>
### Interface Fails to Start: "Address already in use"
If you see this error in your logs:
```
wireguard: Could not bring up interface, ignoring: Address already in use
```
This means the configured port (default: 51820) is already in use by another service or wireguard instance. Solutions:
This means the configured port (default: 51820) is already in use by another
service or wireguard instance. Solutions:
1. **Check for conflicting wireguard instances:**
```bash
sudo wg show
sudo ss -ulnp | grep 51820
```
2. **Use a different port:**
```nix
services.wireguard.myinstance = {
roles.controller = {
@@ -192,12 +216,13 @@ This means the configured port (default: 51820) is already in use by another ser
};
```
3. **Ensure unique ports across multiple instances:**
If you have multiple wireguard instances on the same machine, each must use a different port.
3. **Ensure unique ports across multiple instances:** If you have multiple
wireguard instances on the same machine, each must use a different port.
### Key Management
Keys are automatically generated and stored in the clan vars system. To regenerate keys:
Keys are automatically generated and stored in the clan vars system. To
regenerate keys:
```bash
# Regenerate keys for a specific machine and instance
@@ -214,4 +239,3 @@ clan machines update <machine-name>
- Public keys are distributed through the clan vars system
- Controllers must have publicly accessible endpoints
- Firewall rules are automatically configured for the Wireguard ports

View File

@@ -12,11 +12,6 @@ import ipaddress
import sys
from pathlib import Path
# Constants for argument count validation
MIN_ARGS_BASE = 4
MIN_ARGS_CONTROLLER = 5
MIN_ARGS_PEER = 5
def hash_string(s: str) -> str:
"""Generate SHA256 hash of string."""
@@ -44,7 +39,8 @@ def generate_ula_prefix(instance_name: str) -> ipaddress.IPv6Network:
prefix = f"fd{prefix_bits:08x}"
prefix_formatted = f"{prefix[:4]}:{prefix[4:8]}::/40"
return ipaddress.IPv6Network(prefix_formatted)
network = ipaddress.IPv6Network(prefix_formatted)
return network
def generate_controller_subnet(
@@ -64,7 +60,9 @@ def generate_controller_subnet(
# The controller subnet is at base_prefix:controller_id::/56
base_int = int(base_network.network_address)
controller_subnet_int = base_int | (controller_id << (128 - 56))
return ipaddress.IPv6Network((controller_subnet_int, 56))
controller_subnet = ipaddress.IPv6Network((controller_subnet_int, 56))
return controller_subnet
def generate_peer_suffix(peer_name: str) -> str:
@@ -78,11 +76,12 @@ def generate_peer_suffix(peer_name: str) -> str:
suffix_bits = h[:16]
# Format as IPv6 suffix without leading colon
return f"{suffix_bits[0:4]}:{suffix_bits[4:8]}:{suffix_bits[8:12]}:{suffix_bits[12:16]}"
suffix = f"{suffix_bits[0:4]}:{suffix_bits[4:8]}:{suffix_bits[8:12]}:{suffix_bits[12:16]}"
return suffix
def main() -> None:
if len(sys.argv) < MIN_ARGS_BASE:
if len(sys.argv) < 4:
print(
"Usage: ipv6_allocator.py <output_dir> <instance_name> <controller|peer> <machine_name>",
)
@@ -96,7 +95,7 @@ def main() -> None:
base_network = generate_ula_prefix(instance_name)
if node_type == "controller":
if len(sys.argv) < MIN_ARGS_CONTROLLER:
if len(sys.argv) < 5:
print("Controller name required")
sys.exit(1)
@@ -112,7 +111,7 @@ def main() -> None:
(output_dir / "prefix").write_text(prefix_str)
elif node_type == "peer":
if len(sys.argv) < MIN_ARGS_PEER:
if len(sys.argv) < 5:
print("Peer name required")
sys.exit(1)

View File

@@ -13,32 +13,37 @@ inventory.instances = {
};
```
The input should be named according to your flake input.
All machines will be peers and connected to the zerotier network.
Jon is the controller machine, which will will accept other machines into the network.
Sara is a moon and sets the `stableEndpoint` setting with a publicly reachable IP, the moon is optional.
The input should be named according to your flake input. All machines will be
peers and connected to the zerotier network. Jon is the controller machine,
which will will accept other machines into the network. Sara is a moon and sets
the `stableEndpoint` setting with a publicly reachable IP, the moon is optional.
## Overview
This guide explains how to set up and manage a [ZeroTier VPN](https://zerotier.com) for a clan network. Each VPN requires a single controller and can support multiple peers and optional moons for better connectivity.
This guide explains how to set up and manage a
[ZeroTier VPN](https://zerotier.com) for a clan network. Each VPN requires a
single controller and can support multiple peers and optional moons for better
connectivity.
## Roles
### 1. Controller
The [Controller](https://docs.zerotier.com/controller/) manages network membership and is responsible for admitting new peers.
When a new node is added to the clan, the controller must be updated to ensure it has the latest member list.
The [Controller](https://docs.zerotier.com/controller/) manages network
membership and is responsible for admitting new peers. When a new node is added
to the clan, the controller must be updated to ensure it has the latest member
list.
- **Key Points:**
- Must be online to admit new machines to the VPN.
- Existing nodes can continue to communicate even when the controller is offline.
- Existing nodes can continue to communicate even when the controller is
offline.
### 2. Moons
[Moons](https://docs.zerotier.com/roots) act as relay nodes,
providing direct connectivity to peers via their public IP addresses.
They enable devices that are not publicly reachable to join the VPN by routing through these nodes.
[Moons](https://docs.zerotier.com/roots) act as relay nodes, providing direct
connectivity to peers via their public IP addresses. They enable devices that
are not publicly reachable to join the VPN by routing through these nodes.
- **Configuration Notes:**
- Each moon must define its public IP address.
@@ -46,8 +51,8 @@ They enable devices that are not publicly reachable to join the VPN by routing t
### 3. Peers
Peers are standard nodes in the VPN.
They connect to other peers, moons, and the controller as needed.
Peers are standard nodes in the VPN. They connect to other peers, moons, and the
controller as needed.
- **Purpose:**
- General role for all machines that are neither controllers nor moons.

18
devFlake/flake.lock generated
View File

@@ -3,10 +3,10 @@
"clan-core-for-checks": {
"flake": false,
"locked": {
"lastModified": 1756166884,
"narHash": "sha256-skg4rwpbCjhpLlrv/Pndd43FoEgrJz98WARtGLhCSzo=",
"lastModified": 1756133826,
"narHash": "sha256-In3u7UVSjPzX9u4Af9K/jVy4MMAZBzxByMe4GREpHBo=",
"ref": "main",
"rev": "f7414d7e6e58709af27b6fe16eb530278e81eaaf",
"rev": "c4da43da0f583bd3cbcfd1f3acf74f9dc51b8fdd",
"shallow": true,
"type": "git",
"url": "https://git.clan.lol/clan/clan-core"
@@ -84,11 +84,11 @@
},
"nixpkgs-dev": {
"locked": {
"lastModified": 1756662818,
"narHash": "sha256-Opggp4xiucQ5gBceZ6OT2vWAZOjQb3qULv39scGZ9Nw=",
"lastModified": 1756104823,
"narHash": "sha256-wRzHREXDOrbCjy+sqo4t3JoInbB2PuhXIUa8NWdh9tk=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "2e6aeede9cb4896693434684bb0002ab2c0cfc09",
"rev": "d7967bed5381e65208f4fb8d5502e3c36bb94759",
"type": "github"
},
"original": {
@@ -165,11 +165,11 @@
"nixpkgs": []
},
"locked": {
"lastModified": 1756662192,
"narHash": "sha256-F1oFfV51AE259I85av+MAia221XwMHCOtZCMcZLK2Jk=",
"lastModified": 1755934250,
"narHash": "sha256-CsDojnMgYsfshQw3t4zjRUkmMmUdZGthl16bXVWgRYU=",
"owner": "numtide",
"repo": "treefmt-nix",
"rev": "1aabc6c05ccbcbf4a635fb7a90400e44282f61c4",
"rev": "74e1a52d5bd9430312f8d1b8b0354c92c17453e5",
"type": "github"
},
"original": {

View File

@@ -1,9 +1,12 @@
# Contributing to Clan
**Continuous Integration (CI)**: Each pull request gets automatically tested by
gitea. If any errors are detected, it will block pull requests until they're
resolved.
**Continuous Integration (CI)**: Each pull request gets automatically tested by gitea. If any errors are detected, it will block pull requests until they're resolved.
**Dependency Management**: We use the [Nix package manager](https://nixos.org/) to manage dependencies and ensure reproducibility, making your development process more robust.
**Dependency Management**: We use the [Nix package manager](https://nixos.org/)
to manage dependencies and ensure reproducibility, making your development
process more robust.
## Supported Operating Systems
@@ -16,68 +19,81 @@ Let's get your development environment up and running:
1. **Install Nix Package Manager**:
- You can install the Nix package manager by either [downloading the Nix installer](https://github.com/DeterminateSystems/nix-installer/releases) or running this command:
```bash
curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install
```
- You can install the Nix package manager by either
[downloading the Nix installer](https://github.com/DeterminateSystems/nix-installer/releases)
or running this command:
```bash
curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install
```
1. **Install direnv**:
2. **Install direnv**:
- To automatically setup a devshell on entering the directory
```bash
nix profile install nixpkgs#nix-direnv-flakes nixpkgs#direnv
```
- To automatically setup a devshell on entering the directory
```bash
nix profile install nixpkgs#nix-direnv-flakes nixpkgs#direnv
```
1. **Add direnv to your shell**:
3. **Add direnv to your shell**:
- Direnv needs to [hook into your shell](https://direnv.net/docs/hook.html) to work.
You can do this by executing following command. The example below will setup direnv for `zsh` and `bash`
- Direnv needs to [hook into your shell](https://direnv.net/docs/hook.html)
to work. You can do this by executing following command. The example below
will setup direnv for `zsh` and `bash`
```bash
echo 'eval "$(direnv hook zsh)"' >> ~/.zshrc && echo 'eval "$(direnv hook bash)"' >> ~/.bashrc && eval "$SHELL"
```
```bash
echo 'eval "$(direnv hook zsh)"' >> ~/.zshrc && echo 'eval "$(direnv hook bash)"' >> ~/.bashrc && eval "$SHELL"
```
1. **Allow the devshell**
- Go to `clan-core/pkgs/clan-cli` and do a `direnv allow` to setup the necessary development environment to execute the `clan` command
4. **Allow the devshell**
1. **Create a Gitea Account**:
- Register an account on https://git.clan.lol
- Fork the [clan-core](https://git.clan.lol/clan/clan-core) repository
- Clone the repository and navigate to it
- Add a new remote called upstream:
```bash
git remote add upstream gitea@git.clan.lol:clan/clan-core.git
```
1. **Allow .envrc**:
- Go to `clan-core/pkgs/clan-cli` and do a `direnv allow` to setup the
necessary development environment to execute the `clan` command
- When you enter the directory, you'll receive an error message like this:
```bash
direnv: error .envrc is blocked. Run `direnv allow` to approve its content
```
- Execute `direnv allow` to automatically execute the shell script `.envrc` when entering the directory.
5. **Create a Gitea Account**:
1. **(Optional) Install Git Hooks**:
- To syntax check your code you can run:
```bash
nix fmt
```
- To make this automatic install the git hooks
```bash
./scripts/pre-commit
```
- Register an account on https://git.clan.lol
- Fork the [clan-core](https://git.clan.lol/clan/clan-core) repository
- Clone the repository and navigate to it
- Add a new remote called upstream:
```bash
git remote add upstream gitea@git.clan.lol:clan/clan-core.git
```
6. **Allow .envrc**:
- When you enter the directory, you'll receive an error message like this:
```bash
direnv: error .envrc is blocked. Run `direnv allow` to approve its content
```
- Execute `direnv allow` to automatically execute the shell script `.envrc`
when entering the directory.
7. **(Optional) Install Git Hooks**:
- To syntax check your code you can run:
```bash
nix fmt
```
- To make this automatic install the git hooks
```bash
./scripts/pre-commit
```
## Related Projects
- **Data Mesher**: [data-mesher](https://git.clan.lol/clan/data-mesher)
- **Nixos Facter**: [nixos-facter](https://github.com/nix-community/nixos-facter)
- **Nixos Anywhere**: [nixos-anywhere](https://github.com/nix-community/nixos-anywhere)
- **Nixos Facter**:
[nixos-facter](https://github.com/nix-community/nixos-facter)
- **Nixos Anywhere**:
[nixos-anywhere](https://github.com/nix-community/nixos-anywhere)
- **Disko**: [disko](https://github.com/nix-community/disko)
## Fixing Bugs or Adding Features in Clan-CLI
If you have a bug fix or feature that involves a related project, clone the relevant repository and replace its invocation in your local setup.
If you have a bug fix or feature that involves a related project, clone the
relevant repository and replace its invocation in your local setup.
For instance, if you need to update `nixos-anywhere` in clan-cli, find its usage:
For instance, if you need to update `nixos-anywhere` in clan-cli, find its
usage:
```python
run(
@@ -102,7 +118,8 @@ run(
```
The <path_to_local_src> doesn't need to be a local path, it can be any valid [flakeref](https://nix.dev/manual/nix/2.26/command-ref/new-cli/nix3-flake.html#flake-references).
The \<path_to_local_src> doesn't need to be a local path, it can be any valid
[flakeref](https://nix.dev/manual/nix/2.26/command-ref/new-cli/nix3-flake.html#flake-references).
And thus can point to test already opened PRs for example.
# Standards
@@ -110,4 +127,5 @@ And thus can point to test already opened PRs for example.
- Every new module name should be in kebab-case.
- Every fact definition, where possible should be in kebab-case.
- Every vars definition, where possible should be in kebab-case.
- Command line help descriptions should start capitalized and should not end in a period.
- Command line help descriptions should start capitalized and should not end in
a period.

View File

@@ -2,17 +2,27 @@
## General Description
Self-hosting refers to the practice of hosting and maintaining servers, networks, storage, services, and other types of infrastructure by oneself rather than relying on a third-party vendor. This could involve running a server from a home or business location, or leasing a dedicated server at a data center.
Self-hosting refers to the practice of hosting and maintaining servers,
networks, storage, services, and other types of infrastructure by oneself rather
than relying on a third-party vendor. This could involve running a server from a
home or business location, or leasing a dedicated server at a data center.
There are several reasons for choosing to self-host. These can include:
1. Cost savings: Over time, self-hosting can be more cost-effective, especially for businesses with large scale needs.
1. Cost savings: Over time, self-hosting can be more cost-effective, especially
for businesses with large scale needs.
1. Control: Self-hosting provides a greater level of control over the infrastructure and services. It allows the owner to customize the system to their specific needs.
2. Control: Self-hosting provides a greater level of control over the
infrastructure and services. It allows the owner to customize the system to
their specific needs.
1. Privacy and security: Self-hosting can offer improved privacy and security because data remains under the control of the host rather than being stored on third-party servers.
3. Privacy and security: Self-hosting can offer improved privacy and security
because data remains under the control of the host rather than being stored
on third-party servers.
1. Independent: Being independent of third-party services can ensure that one's websites, applications, or services remain up even if the third-party service goes down.
4. Independent: Being independent of third-party services can ensure that one's
websites, applications, or services remain up even if the third-party service
goes down.
## Stories
@@ -20,23 +30,32 @@ There are several reasons for choosing to self-host. These can include:
Alice wants to self-host a mumble server for her family.
- She visits to the Clan website, and follows the instructions on how to install Clan-OS on her server.
- Alice logs into a terminal on her server via SSH (alternatively uses Clan GUI app)
- Using the Clan CLI or GUI tool, alice creates a new private network for her family (VPN)
- Alice now browses a list of curated Clan modules and finds a module for mumble.
- She visits to the Clan website, and follows the instructions on how to install
Clan-OS on her server.
- Alice logs into a terminal on her server via SSH (alternatively uses Clan GUI
app)
- Using the Clan CLI or GUI tool, alice creates a new private network for her
family (VPN)
- Alice now browses a list of curated Clan modules and finds a module for
mumble.
- She adds this module to her network using the Clan tool.
- After that, she uses the clan tool to invite her family members to her network
- Other family members join the private network via the invitation.
- By accepting the invitation, other members automatically install all required software to interact with the network on their machine.
- By accepting the invitation, other members automatically install all required
software to interact with the network on their machine.
### Story 2: Adding a service to an existing network
Alice wants to add a photos app to her private network
- She uses the clan CLI or GUI tool to manage her existing private Clan family network
- She discovers a module for photoprism, and adds it to her server using the tool
- Other members who are already part of her network, will receive a notification that an update is required to their environment
- After accepting, all new software and services to interact with the new photoprism service will be installed automatically.
- She uses the clan CLI or GUI tool to manage her existing private Clan family
network
- She discovers a module for photoprism, and adds it to her server using the
tool
- Other members who are already part of her network, will receive a notification
that an update is required to their environment
- After accepting, all new software and services to interact with the new
photoprism service will be installed automatically.
## Challenges

View File

@@ -2,35 +2,53 @@
## General Description
Joining a self-hosted infrastructure involves connecting to a network, server, or system that is privately owned and managed, instead of being hosted by a third-party service provider. This could be a business's internal server, a private cloud setup, or any other private IT infrastructure that is not publicly accessible or controlled by outside entities.
Joining a self-hosted infrastructure involves connecting to a network, server,
or system that is privately owned and managed, instead of being hosted by a
third-party service provider. This could be a business's internal server, a
private cloud setup, or any other private IT infrastructure that is not publicly
accessible or controlled by outside entities.
## Stories
### Story 1: Joining a private network
Alice' son Bob has never heard of Clan, but receives an invitation URL from Alice who already set up private Clan network for her family.
Alice' son Bob has never heard of Clan, but receives an invitation URL from
Alice who already set up private Clan network for her family.
Bob opens the invitation link and lands on the Clan website. He quickly learns about what Clan is and can see that the invitation is for a private network of his family that hosts a number of services, like a private voice chat and a photo sharing platform.
Bob opens the invitation link and lands on the Clan website. He quickly learns
about what Clan is and can see that the invitation is for a private network of
his family that hosts a number of services, like a private voice chat and a
photo sharing platform.
Bob decides to join the network and follows the instructions to install the Clan tool on his computer.
Bob decides to join the network and follows the instructions to install the Clan
tool on his computer.
Feeding the invitation link to the Clan tool, bob registers his machine with the network.
Feeding the invitation link to the Clan tool, bob registers his machine with the
network.
All programs required to interact with the network will be installed and configured automatically and securely.
All programs required to interact with the network will be installed and
configured automatically and securely.
Optionally, bob can customize the configuration of these programs through a simplified configuration interface.
Optionally, bob can customize the configuration of these programs through a
simplified configuration interface.
### Story 2: Receiving breaking changes
The Clan family network which Bob is part of received an update.
The existing photo sharing service has been removed and replaced with another alternative service. The new photo sharing service requires a different client app to view and upload photos.
The existing photo sharing service has been removed and replaced with another
alternative service. The new photo sharing service requires a different client
app to view and upload photos.
Bob accepts the update. Now his environment will be updated. The old client software will be removed and the new one installed.
Bob accepts the update. Now his environment will be updated. The old client
software will be removed and the new one installed.
Because Bob has customized the previous photo viewing app, he is notified that this customization is no longer valid, as the software has been removed (deprecation message).l
Because Bob has customized the previous photo viewing app, he is notified that
this customization is no longer valid, as the software has been removed
(deprecation message).l
Optionally, Bob can now customize the new photo viewing software through his Clan configuration app or via a config file.
Optionally, Bob can now customize the new photo viewing software through his
Clan configuration app or via a config file.
## Challenges

View File

@@ -2,23 +2,30 @@
## General Description
Clan modules are pieces of software that can be used by admins to build a private or public infrastructure.
Clan modules are pieces of software that can be used by admins to build a
private or public infrastructure.
Clan modules should have the following properties:
1. Documented: It should be clear what the module does and how to use it.
1. Self contained: A module should be usable as is. If it requires any other software or settings, those should be delivered with the module itself.
1. Simple to deploy and use: Modules should have opinionated defaults that just work. Any customization should be optional
2. Self contained: A module should be usable as is. If it requires any other
software or settings, those should be delivered with the module itself.
3. Simple to deploy and use: Modules should have opinionated defaults that just
work. Any customization should be optional
## Stories
### Story 1: Maintaining a shared folder module
Alice maintains a module for a shared folder service that she uses in her own infra, but also publishes for the community.
Alice maintains a module for a shared folder service that she uses in her own
infra, but also publishes for the community.
By following clan module standards (Backups, Interfaces, Output schema, etc), other community members have an easy time re-using the module within their own infra.
By following clan module standards (Backups, Interfaces, Output schema, etc),
other community members have an easy time re-using the module within their own
infra.
She benefits from publishing the module, because other community members start using it and help to maintain it.
She benefits from publishing the module, because other community members start
using it and help to maintain it.
## Challenges

View File

@@ -1,11 +1,13 @@
{
lib,
config,
...
}:
let
suffix = config.clan.core.vars.generators.disk-id.files.diskId.value;
mirrorBoot = idx: {
# suffix is to prevent disk name collisions
name = idx;
name = idx + suffix;
type = "disk";
device = "/dev/disk/by-id/${idx}";
content = {

View File

@@ -1,11 +1,13 @@
{
lib,
config,
...
}:
let
suffix = config.clan.core.vars.generators.disk-id.files.diskId.value;
mirrorBoot = idx: {
# suffix is to prevent disk name collisions
name = idx;
name = idx + suffix;
type = "disk";
device = "/dev/disk/by-id/${idx}";
content = {

View File

@@ -2,7 +2,7 @@ site_name: Clan Documentation
site_url: https://docs.clan.lol
repo_url: https://git.clan.lol/clan/clan-core/
repo_name: "_>"
edit_uri: _edit/main/docs/site/
edit_uri: _edit/main/docs/docs/
validation:
omitted_files: warn
@@ -94,7 +94,6 @@ nav:
- reference/clanServices/index.md
- reference/clanServices/admin.md
- reference/clanServices/borgbackup.md
- reference/clanServices/coredns.md
- reference/clanServices/data-mesher.md
- reference/clanServices/dyndns.md
- reference/clanServices/emergency-access.md
@@ -107,6 +106,7 @@ nav:
- reference/clanServices/monitoring.md
- reference/clanServices/packages.md
- reference/clanServices/sshd.md
- reference/clanServices/state-version.md
- reference/clanServices/syncthing.md
- reference/clanServices/trusted-nix-caches.md
- reference/clanServices/users.md
@@ -173,7 +173,6 @@ theme:
- content.code.annotate
- content.code.copy
- content.tabs.link
- content.action.edit
icon:
repo: fontawesome/brands/git
custom_dir: overrides

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@@ -48,7 +48,7 @@ CLAN_SERVICE_INTERFACE = os.environ.get("CLAN_SERVICE_INTERFACE")
CLAN_MODULES_VIA_SERVICE = os.environ.get("CLAN_MODULES_VIA_SERVICE")
OUT = os.environ.get("out") # noqa: SIM112
OUT = os.environ.get("out")
def sanitize(text: str) -> str:
@@ -551,7 +551,8 @@ def options_docs_from_tree(
return output
return render_tree(root)
md = render_tree(root)
return md
if __name__ == "__main__":

View File

@@ -1,7 +1,10 @@
---
template: options.html
hide:
- navigation
- toc
---
<redoc src="/openapi.json" />
______________________________________________________________________
template: options.html hide:
- navigation
- toc
______________________________________________________________________
<redoc src="/openapi.json" />

View File

@@ -1,33 +1,35 @@
# Auto-included Files
Clan automatically imports specific files from each machine directory and registers them, reducing the need for manual configuration.
Clan automatically imports specific files from each machine directory and
registers them, reducing the need for manual configuration.
## Machine Registration
Every folder under `machines/{machineName}` is automatically registered as a Clan machine.
Every folder under `machines/{machineName}` is automatically registered as a
Clan machine.
!!! info "Files loaded automatically for each machine"
The following files are detected and imported for every Clan machine:
- [x] `machines/{machineName}/configuration.nix`
Main configuration file for the machine.
- [x] `machines/{machineName}/configuration.nix` Main configuration file for the
machine.
- [x] `machines/{machineName}/hardware-configuration.nix`
Hardware-specific configuration generated by NixOS.
- [x] `machines/{machineName}/hardware-configuration.nix` Hardware-specific
configuration generated by NixOS.
- [x] `machines/{machineName}/facter.json`
Contains system facts. Automatically generated — see [nixos-facter](https://clan.lol/blog/nixos-facter/) for details.
- [x] `machines/{machineName}/facter.json` Contains system facts. Automatically
generated — see [nixos-facter](https://clan.lol/blog/nixos-facter/) for
details.
- [x] `machines/{machineName}/disko.nix`
Disk layout configuration. See the [disko quickstart](https://github.com/nix-community/disko/blob/master/docs/quickstart.md) for more info.
- [x] `machines/{machineName}/disko.nix` Disk layout configuration. See the
[disko quickstart](https://github.com/nix-community/disko/blob/master/docs/quickstart.md)
for more info.
## Other Auto-included Files
* **`inventory.json`**
Managed by Clan's API.
Merges with `clan.inventory` to extend the inventory.
- **`inventory.json`** Managed by Clan's API. Merges with `clan.inventory` to
extend the inventory.
* **`.clan-flake`**
Sentinel file to be used to locate the root of a Clan repository.
Falls back to `.git`, `.hg`, `.svn`, or `flake.nix` if not found.
- **`.clan-flake`** Sentinel file to be used to locate the root of a Clan
repository. Falls back to `.git`, `.hg`, `.svn`, or `flake.nix` if not found.

View File

@@ -1,14 +1,21 @@
# Generators
Defining a linux user's password via the nixos configuration previously required running `mkpasswd ...` and then copying the hash back into the nix configuration.
Defining a linux user's password via the nixos configuration previously required
running `mkpasswd ...` and then copying the hash back into the nix
configuration.
In this example, we will guide you through automating that interaction using clan `vars`.
In this example, we will guide you through automating that interaction using
clan `vars`.
For a more general explanation of what clan vars are and how it works, see the intro of the [Reference Documentation for vars](../reference/clan.core/vars.md)
For a more general explanation of what clan vars are and how it works, see the
intro of the [Reference Documentation for vars](../reference/clan.core/vars.md)
This guide assumes
- Clan is set up already (see [Getting Started](../guides/getting-started/index.md))
- a machine has been added to the clan (see [Adding Machines](../guides/getting-started/add-machines.md))
- Clan is set up already (see
[Getting Started](../guides/getting-started/index.md))
- a machine has been added to the clan (see
[Adding Machines](../guides/getting-started/add-machines.md))
This section will walk you through the following steps:
@@ -29,7 +36,9 @@ In this example, a `vars` `generator` is used to:
- store the hash in a file
- expose the file path to the nixos configuration
Create a new nix file `root-password.nix` with the following content and import it into your `configuration.nix`
Create a new nix file `root-password.nix` with the following content and import
it into your `configuration.nix`
```nix
{config, pkgs, ...}: {
@@ -62,24 +71,29 @@ Create a new nix file `root-password.nix` with the following content and import
## Inspect the status
Executing `clan vars list`, you should see the following:
```shellSession
$ clan vars list my_machine
root-password/password-hash: <not set>
```
...indicating that the value `password-hash` for the generator `root-password` is not set yet.
...indicating that the value `password-hash` for the generator `root-password`
is not set yet.
## Generate the values
This step is not strictly necessary, as deploying the machine via `clan machines update` would trigger the generator as well.
This step is not strictly necessary, as deploying the machine via
`clan machines update` would trigger the generator as well.
To run the generator, execute `clan vars generate` for your machine
```shellSession
$ clan vars generate my_machine
Enter the value for root-password/password-input (hidden):
```
After entering the value, the updated status is reported:
```shellSession
Updated var root-password/password-hash
old: <not set>
@@ -92,6 +106,7 @@ With the last step, a new file was created in your repository:
`vars/per-machine/my-machine/root-password/password-hash/value`
If the repository is a git repository, a commit was created automatically:
```shellSession
$ git log -n1
commit ... (HEAD -> master)
@@ -109,9 +124,13 @@ clan machines update my_machine
## Share root password between machines
If we just imported the `root-password.nix` from above into more machines, clan would ask for a new password for each additional machine.
If we just imported the `root-password.nix` from above into more machines, clan
would ask for a new password for each additional machine.
If the root password instead should only be entered once and shared across all
machines, the generator defined above needs to be declared as `shared`, by
adding `share = true` to it:
If the root password instead should only be entered once and shared across all machines, the generator defined above needs to be declared as `shared`, by adding `share = true` to it:
```nix
{config, pkgs, ...}: {
clan.vars.generators.root-password = {
@@ -121,13 +140,15 @@ If the root password instead should only be entered once and shared across all m
}
```
Importing that shared generator into each machine, will ensure that the password is only asked once the first machine gets updated and then re-used for all subsequent machines.
Importing that shared generator into each machine, will ensure that the password
is only asked once the first machine gets updated and then re-used for all
subsequent machines.
## Change the root password
Changing the password can be done via this command.
Replace `my-machine` with your machine.
If the password is shared, just pick any machine that has the generator declared.
Changing the password can be done via this command. Replace `my-machine` with
your machine. If the password is shared, just pick any machine that has the
generator declared.
```shellSession
$ clan vars generate my-machine --generator root-password --regenerate
@@ -141,7 +162,6 @@ Updated var root-password/password-hash
new: $6$OyoQtDVzeemgh8EQ$zRK...
```
## Further Reading
- [Reference Documentation for `clan.core.vars` NixOS options](../reference/clan.core/vars.md)

View File

@@ -1,62 +1,79 @@
`Inventory` is an abstract service layer for consistently configuring distributed services across machine boundaries.
`Inventory` is an abstract service layer for consistently configuring
distributed services across machine boundaries.
## Concept
Its concept is slightly different to what NixOS veterans might be used to. The inventory is a service definition on a higher level, not a machine configuration. This allows you to define a consistent and coherent service.
Its concept is slightly different to what NixOS veterans might be used to. The
inventory is a service definition on a higher level, not a machine
configuration. This allows you to define a consistent and coherent service.
The inventory logic will automatically derive the modules and configurations to enable on each machine in your `clan` based on its `role`. This makes it super easy to setup distributed `services` such as Backups, Networking, traditional cloud services, or peer-to-peer based applications.
The inventory logic will automatically derive the modules and configurations to
enable on each machine in your `clan` based on its `role`. This makes it super
easy to setup distributed `services` such as Backups, Networking, traditional
cloud services, or peer-to-peer based applications.
The following tutorial will walk through setting up a Backup service where the terms `Service` and `Role` will become more clear.
The following tutorial will walk through setting up a Backup service where the
terms `Service` and `Role` will become more clear.
!!! example "Experimental status"
The inventory implementation is not considered stable yet.
We are actively soliciting feedback from users.
!!! example "Experimental status" The inventory implementation is not considered
stable yet. We are actively soliciting feedback from users.
Stabilizing the API is a priority.
```
Stabilizing the API is a priority.
```
## Prerequisites
- [x] [Add some machines](../guides/getting-started/add-machines.md) to your Clan.
- [x] [Add some machines](../guides/getting-started/add-machines.md) to your
Clan.
## Services
The inventory defines `services`. Membership of `machines` is defined via `roles` exclusively.
The inventory defines `services`. Membership of `machines` is defined via
`roles` exclusively.
See each [modules documentation](../reference/clanServices/index.md) for its available roles.
See each [modules documentation](../reference/clanServices/index.md) for its
available roles.
### Adding services to machines
A service can be added to one or multiple machines via `Roles`. Clan's `Role` interface provide sane defaults for a module this allows the module author to reduce the configuration overhead to a minimum.
A service can be added to one or multiple machines via `Roles`. Clan's `Role`
interface provide sane defaults for a module this allows the module author to
reduce the configuration overhead to a minimum.
Each service can still be customized and configured according to the modules options.
Each service can still be customized and configured according to the modules
options.
- Per instance configuration via `services.<serviceName>.<instanceName>.config`
- Per role configuration via `services.<serviceName>.<instanceName>.roles.<roleName>.config`
- Per machine configuration via `services.<serviceName>.<instanceName>.machines.<machineName>.config`
- Per role configuration via
`services.<serviceName>.<instanceName>.roles.<roleName>.config`
- Per machine configuration via
`services.<serviceName>.<instanceName>.machines.<machineName>.config`
### Setting up the Backup Service
!!! Example "Borgbackup Example"
To configure a service it needs to be added to the machine.
It is required to assign the service (`borgbackup`) an arbitrary instance name. (`instance_1`)
````
To configure a service it needs to be added to the machine.
It is required to assign the service (`borgbackup`) an arbitrary instance name. (`instance_1`)
See also: [Multiple Service Instances](#multiple-service-instances)
See also: [Multiple Service Instances](#multiple-service-instances)
```{.nix hl_lines="6-7"}
clan-core.lib.clan {
inventory = {
services = {
borgbackup.instance_1 = {
# Machines can be added here.
roles.client.machines = [ "jon" ];
roles.server.machines = [ "backup_server" ];
};
```{.nix hl_lines="6-7"}
clan-core.lib.clan {
inventory = {
services = {
borgbackup.instance_1 = {
# Machines can be added here.
roles.client.machines = [ "jon" ];
roles.server.machines = [ "backup_server" ];
};
};
}
```
};
}
```
````
### Scaling the Backup
@@ -66,56 +83,60 @@ It is possible to add services to multiple machines via tags as shown
!!! Example "Tags Example"
```{.nix hl_lines="5 8 14"}
clan-core.lib.clan {
inventory = {
machines = {
"jon" = {
tags = [ "backup" ];
};
"sara" = {
tags = [ "backup" ];
};
# ...
````
```{.nix hl_lines="5 8 14"}
clan-core.lib.clan {
inventory = {
machines = {
"jon" = {
tags = [ "backup" ];
};
services = {
borgbackup.instance_1 = {
roles.client.tags = [ "backup" ];
roles.server.machines = [ "backup_server" ];
};
"sara" = {
tags = [ "backup" ];
};
# ...
};
services = {
borgbackup.instance_1 = {
roles.client.tags = [ "backup" ];
roles.server.machines = [ "backup_server" ];
};
};
}
```
};
}
```
````
### Multiple Service Instances
!!! danger "Important"
Not all modules implement support for multiple instances yet.
Multiple instance usage could create complexity, refer to each modules documentation, for intended usage.
!!! danger "Important" Not all modules implement support for multiple instances
yet. Multiple instance usage could create complexity, refer to each modules
documentation, for intended usage.
!!! Example
In this example `backup_server` has role `client` and `server` in different instances.
````
In this example `backup_server` has role `client` and `server` in different instances.
```{.nix hl_lines="11 14"}
clan-core.lib.clan {
inventory = {
machines = {
"jon" = {};
"backup_server" = {};
"backup_backup_server" = {}
```{.nix hl_lines="11 14"}
clan-core.lib.clan {
inventory = {
machines = {
"jon" = {};
"backup_server" = {};
"backup_backup_server" = {}
};
services = {
borgbackup.instance_1 = {
roles.client.machines = [ "jon" ];
roles.server.machines = [ "backup_server" ];
};
services = {
borgbackup.instance_1 = {
roles.client.machines = [ "jon" ];
roles.server.machines = [ "backup_server" ];
};
borgbackup.instance_2 = {
roles.client.machines = [ "backup_server" ];
roles.server.machines = [ "backup_backup_server" ];
};
borgbackup.instance_2 = {
roles.client.machines = [ "backup_server" ];
roles.server.machines = [ "backup_backup_server" ];
};
};
}
```
};
}
```
````

View File

@@ -1,7 +1,8 @@
# How Templates work
Clan offers the ability to use templates for creating different resources.
It comes with some `<builtin>` templates and discovers all exposed templates from its flake's `inputs`
Clan offers the ability to use templates for creating different resources. It
comes with some `<builtin>` templates and discovers all exposed templates from
its flake's `inputs`
For example one can list all current templates like this:
@@ -38,7 +39,8 @@ Available 'machine' templates
Templates are referenced via the `--template` `selector`
clan-core ships its native/builtin templates. Those are referenced if the selector is a plain string ( without `#` or `./.` )
clan-core ships its native/builtin templates. Those are referenced if the
selector is a plain string ( without `#` or `./.` )
For example:
@@ -48,11 +50,14 @@ would use the native `<builtin>.flake-parts` template
## Selectors follow nix flake `reference#attribute` syntax
Selectors follow a very similar pattern as Nix's native attribute selection behavior.
Selectors follow a very similar pattern as Nix's native attribute selection
behavior.
Just like `nix build .` would build `packages.x86-linux.default` of the flake in `./.`
Just like `nix build .` would build `packages.x86-linux.default` of the flake in
`./.`
`clan flakes create --template=.` would create a clan from your **local** `default` clan template (`templates.clan.default`).
`clan flakes create --template=.` would create a clan from your **local**
`default` clan template (`templates.clan.default`).
In fact this command would be equivalent, just make it more explicit
@@ -60,10 +65,11 @@ In fact this command would be equivalent, just make it more explicit
## Remote templates
Just like with Nix you could specify a remote url or path to the flake containing the template
Just like with Nix you could specify a remote url or path to the flake
containing the template
`clan flakes create --template=github:owner/repo#foo`
!!! Note "Implementation Note"
Not all features of Nix's attribute selection are currently matched.
There are minor differences in case of unexpected behavior please create an [issue](https://git.clan.lol/clan/clan-core/issues/new)
!!! Note "Implementation Note" Not all features of Nix's attribute selection are
currently matched. There are minor differences in case of unexpected behavior
please create an [issue](https://git.clan.lol/clan/clan-core/issues/new)

View File

@@ -13,15 +13,20 @@ To define a service in Clan, you need to define two things:
- `clanModule` - defined by module authors
- `inventory` - defined by users
The `clanModule` is currently a plain NixOS module. It is conditionally imported into each machine depending on the `service` and `role`.
The `clanModule` is currently a plain NixOS module. It is conditionally imported
into each machine depending on the `service` and `role`.
A `role` is a function of a machine within a service. For example in the `backup` service there are `client` and `server` roles.
A `role` is a function of a machine within a service. For example in the
`backup` service there are `client` and `server` roles.
The `inventory` contains the settings for the user/consumer of the module. It describes what `services` run on each machine and with which `roles`.
The `inventory` contains the settings for the user/consumer of the module. It
describes what `services` run on each machine and with which `roles`.
Additionally any `service` can be instantiated multiple times.
This ADR proposes that we change how to write a `clanModule`. The `inventory` should get a new attribute called `instances` that allow for configuration of these modules.
This ADR proposes that we change how to write a `clanModule`. The `inventory`
should get a new attribute called `instances` that allow for configuration of
these modules.
### Status Quo
@@ -66,103 +71,144 @@ in {
Problems with the current way of writing clanModules:
1. No way to retrieve the config of a single service instance, together with its name.
2. Directly exporting a single, anonymous nixosModule without any intermediary attribute layers doesn't leave room for exporting other inventory resources such as potentially `vars` or `homeManagerConfig`.
3. Can't access multiple config instances individually.
Example:
```nix
inventory = {
services = {
network.c-base = {
instanceConfig.ips = {
mors = "172.139.0.2";
};
};
network.gg23 = {
instanceConfig.ips = {
mors = "10.23.0.2";
};
};
};
};
```
This doesn't work because all instance configs are applied to the same namespace. So this results in a conflict currently.
Resolving this problem means that new inventory modules cannot be plain nixos modules anymore. If they are configured via `instances` / `instanceConfig` they cannot be configured without using the inventory. (There might be ways to inject instanceConfig but that requires knowledge of inventory internals)
1. No way to retrieve the config of a single service instance, together with its
name.
4. Writing modules for multiple instances is cumbersome. Currently the clanModule author has to write one or multiple `fold` operations for potentially every nixos option to define how multiple service instances merge into every single one option. The new idea behind this adr is to pull the common fold function into the outer context provide it as a common helper. (See the example below. `perInstance` analog to the well known `perSystem` of flake-parts)
2. Directly exporting a single, anonymous nixosModule without any intermediary
attribute layers doesn't leave room for exporting other inventory resources
such as potentially `vars` or `homeManagerConfig`.
5. Each role has a different interface. We need to render that interface into json-schema which includes creating an unnecessary test machine currently. Defining the interface at a higher level (outside of any machine context) allows faster evaluation and an isolation by design from any machine.
This allows rendering the UI (options tree) of a service by just knowing the service and the corresponding roles without creating a dummy machine.
3. Can't access multiple config instances individually. Example:
6. The interface of defining config is wrong. It is possible to define config that applies to multiple machine at once. It is possible to define config that applies to
a machine as a hole. But this is wrong behavior because the options exist at the role level. So config must also always exist at the role level.
Currently we merge options and config together but that may produce conflicts. Those module system conflicts are very hard to foresee since they depend on what roles exist at runtime.
```nix
inventory = {
services = {
network.c-base = {
instanceConfig.ips = {
mors = "172.139.0.2";
};
};
network.gg23 = {
instanceConfig.ips = {
mors = "10.23.0.2";
};
};
};
};
```
This doesn't work because all instance configs are applied to the same
namespace. So this results in a conflict currently. Resolving this problem
means that new inventory modules cannot be plain nixos modules anymore. If
they are configured via `instances` / `instanceConfig` they cannot be
configured without using the inventory. (There might be ways to inject
instanceConfig but that requires knowledge of inventory internals)
4. Writing modules for multiple instances is cumbersome. Currently the
clanModule author has to write one or multiple `fold` operations for
potentially every nixos option to define how multiple service instances merge
into every single one option. The new idea behind this adr is to pull the
common fold function into the outer context provide it as a common helper.
(See the example below. `perInstance` analog to the well known `perSystem` of
flake-parts)
5. Each role has a different interface. We need to render that interface into
json-schema which includes creating an unnecessary test machine currently.
Defining the interface at a higher level (outside of any machine context)
allows faster evaluation and an isolation by design from any machine. This
allows rendering the UI (options tree) of a service by just knowing the
service and the corresponding roles without creating a dummy machine.
6. The interface of defining config is wrong. It is possible to define config
that applies to multiple machine at once. It is possible to define config
that applies to a machine as a hole. But this is wrong behavior because the
options exist at the role level. So config must also always exist at the role
level. Currently we merge options and config together but that may produce
conflicts. Those module system conflicts are very hard to foresee since they
depend on what roles exist at runtime.
## Proposed Change
We will create a new module class which is defined by `_class = "clan.service"` ([documented here](https://nixos.org/manual/nixpkgs/stable/#module-system-lib-evalModules-param-class)).
We will create a new module class which is defined by `_class = "clan.service"`
([documented here](https://nixos.org/manual/nixpkgs/stable/#module-system-lib-evalModules-param-class)).
Existing clan modules will still work by continuing to be plain NixOS modules. All new modules can set `_class = "clan.service";` to use the proposed features.
Existing clan modules will still work by continuing to be plain NixOS modules.
All new modules can set `_class = "clan.service";` to use the proposed features.
In short the change introduces a new module class that makes the currently necessary folding of `clan.service`s `instances` and `roles` a common operation. The module author can define the inner function of the fold operations which is called a `clan.service` module.
In short the change introduces a new module class that makes the currently
necessary folding of `clan.service`s `instances` and `roles` a common operation.
The module author can define the inner function of the fold operations which is
called a `clan.service` module.
There are the following attributes of such a module:
### `roles.<roleName>.interface`
Each role can have a different interface for how to be configured.
I.e.: A `client` role might have different options than a `server` role.
Each role can have a different interface for how to be configured. I.e.: A
`client` role might have different options than a `server` role.
This attribute should be used to define `options`. (Not `config` !)
The end-user defines the corresponding `config`.
This submodule will be evaluated for each `instance role` combination and passed as argument into `perInstance`.
This submodule will be evaluated for each `instance role` combination and passed
as argument into `perInstance`.
This submodules `options` will be evaluated to build the UI for that module dynamically.
This submodules `options` will be evaluated to build the UI for that module
dynamically.
### **Result attributes**
Some common result attributes are produced by modules of this proposal, those will be referenced later in this document but are commonly defined as:
Some common result attributes are produced by modules of this proposal, those
will be referenced later in this document but are commonly defined as:
- `nixosModule` A single nixos module. (`{config, ...}:{ environment.systemPackages = []; }`)
- `services.<serviceName>` An attribute set of `_class = clan.service`. Which contain the same thing as this whole ADR proposes.
- `nixosModule` A single nixos module.
(`{config, ...}:{ environment.systemPackages = []; }`)
- `services.<serviceName>` An attribute set of `_class = clan.service`. Which
contain the same thing as this whole ADR proposes.
- `vars` To be defined. Reserved for now.
### `roles.<roleName>.perInstance`
This acts like a function that maps over all `service instances` of a given `role`.
It produces the previously defined **result attributes**.
This acts like a function that maps over all `service instances` of a given
`role`. It produces the previously defined **result attributes**.
I.e. This allows to produce multiple `nixosModules` one for every instance of the service.
Hence making multiple `service instances` convenient by leveraging the module-system merge behavior.
I.e. This allows to produce multiple `nixosModules` one for every instance of
the service. Hence making multiple `service instances` convenient by leveraging
the module-system merge behavior.
### `perMachine`
This acts like a function that maps over all `machines` of a given `service`.
It produces the previously defined **result attributes**.
This acts like a function that maps over all `machines` of a given `service`. It
produces the previously defined **result attributes**.
I.e. this allows to produce exactly one `nixosModule` per `service`.
Making it easy to set nixos-options only once if they have a one-to-one relation to a service being enabled.
I.e. this allows to produce exactly one `nixosModule` per `service`. Making it
easy to set nixos-options only once if they have a one-to-one relation to a
service being enabled.
Note: `lib.mkIf` can be used on i.e. `roleName` to make the scope more specific.
### `services.<serviceName>`
This allows to define nested services.
i.e the *service* `backup` might define a nested *service* `ssh` which sets up an ssh connection.
This allows to define nested services. i.e the *service* `backup` might define a
nested *service* `ssh` which sets up an ssh connection.
This can be defined in `perMachine` and `perInstance`
- For Every `instance` a given `service` may add multiple nested `services`.
- A given `service` may add a static set of nested `services`; Even if there are multiple instances of the same given service.
- A given `service` may add a static set of nested `services`; Even if there are
multiple instances of the same given service.
Q: Why is this not a top-level attribute?
A: Because nested service definitions may also depend on a `role` which must be resolved depending on `machine` and `instance`. The top-level module doesn't know anything about machines. Keeping the service layer machine agnostic allows us to build the UI for a module without adding any machines. (One of the problems with the current system)
Q: Why is this not a top-level attribute? A: Because nested service definitions
may also depend on a `role` which must be resolved depending on `machine` and
`instance`. The top-level module doesn't know anything about machines. Keeping
the service layer machine agnostic allows us to build the UI for a module
without adding any machines. (One of the problems with the current system)
```
zerotier/default.nix
```
```nix
# Some example module
{
@@ -221,15 +267,25 @@ zerotier/default.nix
## Inventory.instances
This document also proposes to add a new attribute to the inventory that allow for exclusive configuration of the new modules.
This allows to better separate the new and the old way of writing and configuring modules. Keeping the new implementation more focussed and keeping existing technical debt out from the beginning.
This document also proposes to add a new attribute to the inventory that allow
for exclusive configuration of the new modules. This allows to better separate
the new and the old way of writing and configuring modules. Keeping the new
implementation more focussed and keeping existing technical debt out from the
beginning.
The following thoughts went into this:
- Getting rid of `<serviceName>`: Using only the attribute name (plain string) is not sufficient for defining the source of the service module. Encoding meta information into it would also require some extensible format specification and parser.
- removing instanceConfig and machineConfig: There is no such config. Service configuration must always be role specific, because the options are defined on the role.
- renaming `config` to `settings` or similar. Since `config` is a module system internal name.
- Tags and machines should be an attribute set to allow setting `settings` on that level instead.
- Getting rid of `<serviceName>`: Using only the attribute name (plain string)
is not sufficient for defining the source of the service module. Encoding meta
information into it would also require some extensible format specification
and parser.
- removing instanceConfig and machineConfig: There is no such config. Service
configuration must always be role specific, because the options are defined on
the role.
- renaming `config` to `settings` or similar. Since `config` is a module system
internal name.
- Tags and machines should be an attribute set to allow setting `settings` on
that level instead.
```nix
{
@@ -258,7 +314,9 @@ The following thoughts went into this:
## Iteration note
We want to implement the system as described. Once we have sufficient data on real world use-cases and modules we might revisit this document along with the updated implementation.
We want to implement the system as described. Once we have sufficient data on
real world use-cases and modules we might revisit this document along with the
updated implementation.
## Real world example

View File

@@ -6,7 +6,8 @@ Accepted
## Context
In the long term we envision the clan application will consist of the following user facing tools in the long term.
In the long term we envision the clan application will consist of the following
user facing tools in the long term.
- `CLI`
- `TUI`
@@ -14,17 +15,20 @@ In the long term we envision the clan application will consist of the following
- `REST-API`
- `Mobile Application`
We might not be sure whether all of those will exist but the architecture should be generic such that those are possible without major changes of the underlying system.
We might not be sure whether all of those will exist but the architecture should
be generic such that those are possible without major changes of the underlying
system.
## Decision
This leads to the conclusion that we should do `library` centric development.
With the current `clan` python code being a library that can be imported to create various tools ontop of it.
All **CLI** or **UI** related parts should be moved out of the main library.
With the current `clan` python code being a library that can be imported to
create various tools ontop of it. All **CLI** or **UI** related parts should be
moved out of the main library.
Imagine roughly the following architecture:
``` mermaid
```mermaid
graph TD
%% Define styles
classDef frontend fill:#f9f,stroke:#333,stroke-width:2px;
@@ -66,14 +70,18 @@ graph TD
BusinessLogic --> NIX
```
With this very simple design it is ensured that all the basic features remain stable across all frontends.
In the end it is straight forward to create python library function calls in a testing framework to ensure that kind of stability.
With this very simple design it is ensured that all the basic features remain
stable across all frontends. In the end it is straight forward to create python
library function calls in a testing framework to ensure that kind of stability.
Integration tests and smaller unit-tests should both be utilized to ensure the stability of the library.
Integration tests and smaller unit-tests should both be utilized to ensure the
stability of the library.
Note: Library function don't have to be json-serializable in general.
Persistence includes but is not limited to: creating git commits, writing to inventory.json, reading and writing vars, and interacting with persisted data in general.
Persistence includes but is not limited to: creating git commits, writing to
inventory.json, reading and writing vars, and interacting with persisted data in
general.
## Benefits / Drawbacks
@@ -81,34 +89,51 @@ Persistence includes but is not limited to: creating git commits, writing to inv
- (+) Consistency and inherent behavior
- (+) Performance & Scalability
- (+) Different frontends for different user groups
- (+) Documentation per library function makes it convenient to interact with the clan resources.
- (+) Testing the library ensures stability of the underlyings for all layers above.
- (+) Documentation per library function makes it convenient to interact with
the clan resources.
- (+) Testing the library ensures stability of the underlyings for all layers
above.
- (-) Complexity overhead
- (-) library needs to be designed / documented
- (+) library can be well documented since it is a finite set of functions.
- (-) Error handling might be harder.
- (+) Common error reporting
- (-) different frontends need different features. The library must include them all.
- (-) different frontends need different features. The library must include them
all.
- (+) All those core features must be implemented anyways.
- (+) VPN Benchmarking uses the existing library's already and works relatively well.
- (+) VPN Benchmarking uses the existing library's already and works relatively
well.
## Implementation considerations
Not all required details that need to change over time are possible to be pointed out ahead of time.
The goal of this document is to create a common understanding for how we like our project to be structured.
Any future commits should contribute to this goal.
Not all required details that need to change over time are possible to be
pointed out ahead of time. The goal of this document is to create a common
understanding for how we like our project to be structured. Any future commits
should contribute to this goal.
Some ideas what might be needed to change:
- Having separate locations or packages for the library and the CLI.
- Rename the `clan_cli` package to `clan` and move the `cli` frontend into a subfolder or a separate package.
- Python Argparse or other cli related code should not exist in the `clan` python library.
- `__init__.py` should be very minimal. Only init the business logic models and resources. Note that all `__init__.py` files all the way up in the module tree are always executed as part of the python module import logic and thus should be as small as possible.
i.e. `from clan_cli.vars.generators import ...` executes both `clan_cli/__init__.py` and `clan_cli/vars/__init__.py` if any of those exist.
- Rename the `clan_cli` package to `clan` and move the `cli` frontend into a
subfolder or a separate package.
- Python Argparse or other cli related code should not exist in the `clan`
python library.
- `__init__.py` should be very minimal. Only init the business logic models and
resources. Note that all `__init__.py` files all the way up in the module tree
are always executed as part of the python module import logic and thus should
be as small as possible. i.e. `from clan_cli.vars.generators import ...`
executes both `clan_cli/__init__.py` and `clan_cli/vars/__init__.py` if any of
those exist.
- `api` folder doesn't make sense since the python library `clan` is the api.
- Logic needed for the webui that performs json serialization and deserialization will be some `json-adapter` folder or package.
- Code for serializing dataclasses and typed dictionaries is needed for the persistence layer. (i.e. for read-write of inventory.json)
- The inventory-json is a backend resource, that is internal. Its logic includes merging, unmerging and partial updates with considering nix values and their priorities. Nobody should try to read or write to it directly.
Instead there will be library methods i.e. to add a `service` or to update/read/delete some information from it.
- Library functions should be carefully designed with suitable conventions for writing good api's in mind. (i.e: https://swagger.io/resources/articles/best-practices-in-api-design/)
- Logic needed for the webui that performs json serialization and
deserialization will be some `json-adapter` folder or package.
- Code for serializing dataclasses and typed dictionaries is needed for the
persistence layer. (i.e. for read-write of inventory.json)
- The inventory-json is a backend resource, that is internal. Its logic includes
merging, unmerging and partial updates with considering nix values and their
priorities. Nobody should try to read or write to it directly. Instead there
will be library methods i.e. to add a `service` or to update/read/delete some
information from it.
- Library functions should be carefully designed with suitable conventions for
writing good api's in mind. (i.e:
https://swagger.io/resources/articles/best-practices-in-api-design/)

View File

@@ -6,27 +6,39 @@ Proposed after some conversation between @lassulus, @Mic92, & @lopter.
## Context
It can be useful to refer to ADRs by their numbers, rather than their full title. To that end, short and sequential numbers are useful.
It can be useful to refer to ADRs by their numbers, rather than their full
title. To that end, short and sequential numbers are useful.
The issue is that an ADR number is effectively assigned when the ADR is merged, before being merged its number is provisional. Because multiple ADRs can be written at the same time, you end-up with multiple provisional ADRs with the same number, for example this is the third ADR-3:
The issue is that an ADR number is effectively assigned when the ADR is merged,
before being merged its number is provisional. Because multiple ADRs can be
written at the same time, you end-up with multiple provisional ADRs with the
same number, for example this is the third ADR-3:
1. ADR-3-clan-compat: see [#3212];
2. ADR-3-fetching-nix-from-python: see [#3452];
3. ADR-3-numbering-process: this ADR.
This situation makes it impossible to refer to an ADR by its number, and why I (@lopter) went with the arbitrary number 7 in [#3196].
This situation makes it impossible to refer to an ADR by its number, and why I
(@lopter) went with the arbitrary number 7 in [#3196].
We could solve this problem by using the PR number as the ADR number (@lassulus). The issue is that PR numbers are getting big in clan-core which does not make them easy to remember, or use in conversation and code (@lopter).
We could solve this problem by using the PR number as the ADR number
(@lassulus). The issue is that PR numbers are getting big in clan-core which
does not make them easy to remember, or use in conversation and code (@lopter).
Another approach would be to move the ADRs in a different repository, this would reset the counter back to 1, and make it straightforward to keep ADR and PR numbers in sync (@lopter). The issue then is that ADR are not in context with their changes which makes them more difficult to review (@Mic92).
Another approach would be to move the ADRs in a different repository, this would
reset the counter back to 1, and make it straightforward to keep ADR and PR
numbers in sync (@lopter). The issue then is that ADR are not in context with
their changes which makes them more difficult to review (@Mic92).
## Decision
A third approach would be to:
1. Commit ADRs before they are approved, so that the next ADR number gets assigned;
1. Open a PR for the proposed ADR;
1. Update the ADR file committed in step 1, so that its markdown contents point to the PR that tracks it.
1. Commit ADRs before they are approved, so that the next ADR number gets
assigned;
2. Open a PR for the proposed ADR;
3. Update the ADR file committed in step 1, so that its markdown contents point
to the PR that tracks it.
## Consequences
@@ -36,12 +48,13 @@ This makes it easier to refer to them in conversation or in code.
### You need to have commit access to get an ADR number assigned
This makes it more difficult for someone external to the project to contribute an ADR.
This makes it more difficult for someone external to the project to contribute
an ADR.
### Creating a new ADR requires multiple commits
Maybe a script or CI flow could help with that if it becomes painful.
[#3196]: https://git.clan.lol/clan/clan-core/pulls/3196/
[#3212]: https://git.clan.lol/clan/clan-core/pulls/3212/
[#3452]: https://git.clan.lol/clan/clan-core/pulls/3452/
[#3196]: https://git.clan.lol/clan/clan-core/pulls/3196/

View File

@@ -4,83 +4,113 @@ accepted
## Context
In our clan-cli we need to get a lot of values from nix into the python runtime. This is used to determine the hostname, the target ips address, scripts to generate vars, file locations and many more.
In our clan-cli we need to get a lot of values from nix into the python runtime.
This is used to determine the hostname, the target ips address, scripts to
generate vars, file locations and many more.
Currently we use two different accessing methods:
### Method 1: deployment.json
A json file that serializes some predefined values into a JSON file as build-time artifact.
A json file that serializes some predefined values into a JSON file as
build-time artifact.
Downsides:
* no access to flake level values
* all or nothing:
* values are either cached via deployment.json or not. So we can only put cheap values into there,
* in the past var generation script were added here, which added a huge build time overhead for every time we wanted to do any action
* duplicated nix code
* values need duplicated nix code, once to define them at the correct place in the module system (clan.core.vars.generators) and code to accumulate them again for the deployment.json (system.clan.deployment.data)
* This duality adds unnecessary dependencies to the nixos module system.
- no access to flake level values
- all or nothing:
- values are either cached via deployment.json or not. So we can only put
cheap values into there,
- in the past var generation script were added here, which added a huge build
time overhead for every time we wanted to do any action
- duplicated nix code
- values need duplicated nix code, once to define them at the correct place in
the module system (clan.core.vars.generators) and code to accumulate them
again for the deployment.json (system.clan.deployment.data)
- This duality adds unnecessary dependencies to the nixos module system.
Benefits:
* Utilize `nix build` for caching the file.
* Caching mechanism is very simple.
- Utilize `nix build` for caching the file.
- Caching mechanism is very simple.
### Method 2: Direct access
Directly calling the evaluator / build sandbox via `nix build` and `nix eval`within the Python code
Directly calling the evaluator / build sandbox via `nix build` and
`nix eval`within the Python code
Downsides:
* Access is not cached: Static overhead (see below: \~1.5s) is present every time, if we invoke `nix commands`
* The static overhead depends obviously which value we need to retrieve, since the `evalModules` overhead depends, whether we evaluate some attribute inside a machine or a flake attribute
* Accessing more and more attributes with this method increases the static overhead, which leads to a linear decrease in performance.
* Boilerplate for interacting with the CLI and Error handling code is repeated every time.
- Access is not cached: Static overhead (see below: ~1.5s) is present every
time, if we invoke `nix commands`
- The static overhead depends obviously which value we need to retrieve, since
the `evalModules` overhead depends, whether we evaluate some attribute
inside a machine or a flake attribute
- Accessing more and more attributes with this method increases the static
overhead, which leads to a linear decrease in performance.
- Boilerplate for interacting with the CLI and Error handling code is repeated
every time.
Benefits:
* Simple and native interaction with the `nix commands`is rather intuitive
* Custom error handling for each attribute is easy
- Simple and native interaction with the `nix commands`is rather intuitive
- Custom error handling for each attribute is easy
This sytem could be enhanced with custom nix expressions, which could be used in places where we don't want to put values into deployment.json or want to fetch flake level values. This also has some downsides:
This sytem could be enhanced with custom nix expressions, which could be used in
places where we don't want to put values into deployment.json or want to fetch
flake level values. This also has some downsides:
* technical debt
* we have to maintain custom nix expressions inside python code, embedding code is error prone and the language linters won't help you here, so errors are common and harder to debug.
* we need custom error reporting code in case something goes wrong, either the value doesn't exist or there is an reported build error
* no caching/custom caching logic
* currently there is no infrastructure to cache those extra values, so we would need to store them somewhere, we could either enhance one of the many classes we have or don't cache them at all
* even if we implement caching for extra nix expressions, there can be no sharing between extra nix expressions. for example we have 2 nix expressions, one fetches paths and values for all generators and the second one fetches only the values, we still need to execute both of them in both contexts although the second one could be skipped if the first one is already cached
- technical debt
- we have to maintain custom nix expressions inside python code, embedding
code is error prone and the language linters won't help you here, so errors
are common and harder to debug.
- we need custom error reporting code in case something goes wrong, either the
value doesn't exist or there is an reported build error
- no caching/custom caching logic
- currently there is no infrastructure to cache those extra values, so we
would need to store them somewhere, we could either enhance one of the many
classes we have or don't cache them at all
- even if we implement caching for extra nix expressions, there can be no
sharing between extra nix expressions. for example we have 2 nix
expressions, one fetches paths and values for all generators and the second
one fetches only the values, we still need to execute both of them in both
contexts although the second one could be skipped if the first one is
already cached
### Method 3: nix select
Move all code that extracts nix values into a common class:
Downsides:
* added complexity for maintaining our own DSL
- added complexity for maintaining our own DSL
Benefits:
* we can implement an API (select DSL) to get those values from nix without writing complex nix expressions.
* we can implement caching of those values beyond the runtime of the CLI
* we can use precaching at different endpoints to eliminate most of multiple nix evaluations (except in cases where we have to break the cache or we don't know if we need the value in the value later and getting it is expensive).
- we can implement an API (select DSL) to get those values from nix without
writing complex nix expressions.
- we can implement caching of those values beyond the runtime of the CLI
- we can use precaching at different endpoints to eliminate most of multiple nix
evaluations (except in cases where we have to break the cache or we don't know
if we need the value in the value later and getting it is expensive).
## Decision
Use Method 3 (nix select) for extracting values out of nix.
This adds the Flake class in flake.py with a select method, which takes a selector string and returns a python dict.
This adds the Flake class in flake.py with a select method, which takes a
selector string and returns a python dict.
Example:
```python
from clan_lib.flake import Flake
flake = Flake("github:lassulus/superconfig")
flake.select("nixosConfigurations.*.config.networking.hostName)
```
returns:
```
{
"ignavia": "ignavia",
@@ -91,7 +121,13 @@ returns:
## Consequences
* Faster execution due to caching most things beyond a single execution, if no cache break happens execution is basically instant, because we don't need to run nix again.
* Better error reporting, since all nix values go through one chokepoint, we can parse error messages in that chokepoint and report them in a more user friendly way, for example if a value is missing at the expected location inside the module system.
* less embedded nix code inside python code
* more portable CLI, since we need to import less modules into the module system and most things can be extracted by the python code directly
- Faster execution due to caching most things beyond a single execution, if no
cache break happens execution is basically instant, because we don't need to
run nix again.
- Better error reporting, since all nix values go through one chokepoint, we can
parse error messages in that chokepoint and report them in a more user
friendly way, for example if a value is missing at the expected location
inside the module system.
- less embedded nix code inside python code
- more portable CLI, since we need to import less modules into the module system
and most things can be extracted by the python code directly

View File

@@ -6,12 +6,16 @@ accepted
## Context
Currently different operations (install, update) have different modes. Install always evals locally and pushes the derivation to a remote system. update has a configurable buildHost and targetHost.
Confusingly install always evals locally and update always evals on the targetHost, so hosts have different semantics in different operations contexts.
Currently different operations (install, update) have different modes. Install
always evals locally and pushes the derivation to a remote system. update has a
configurable buildHost and targetHost. Confusingly install always evals locally
and update always evals on the targetHost, so hosts have different semantics in
different operations contexts.
## Decision
Add evalHost to make this clear and configurable for the user. This would leave us with:
Add evalHost to make this clear and configurable for the user. This would leave
us with:
- evalHost
- buildHost
@@ -19,18 +23,29 @@ Add evalHost to make this clear and configurable for the user. This would leave
for the update and install operation.
`evalHost` would be the machine that evaluates the nixos configuration. if evalHost is not localhost, we upload the non secret vars and the nix archived flake (this is usually the same operation) to the evalMachine.
`evalHost` would be the machine that evaluates the nixos configuration. if
evalHost is not localhost, we upload the non secret vars and the nix archived
flake (this is usually the same operation) to the evalMachine.
`buildHost` would be what is used by the machine to build, it would correspond to `--build-host` on the nixos-rebuild command or `--builders` for nix build.
`buildHost` would be what is used by the machine to build, it would correspond
to `--build-host` on the nixos-rebuild command or `--builders` for nix build.
`targetHost` would be the machine where the closure gets copied to and activated (either through install or switch-to-configuration). It corresponds to `--targetHost` for nixos-rebuild or where we usually point `nixos-anywhere` to.
`targetHost` would be the machine where the closure gets copied to and activated
(either through install or switch-to-configuration). It corresponds to
`--targetHost` for nixos-rebuild or where we usually point `nixos-anywhere` to.
This hosts could be set either through CLI args (or forms for the GUI) or via the inventory. If both are given, the CLI args would take precedence.
This hosts could be set either through CLI args (or forms for the GUI) or via
the inventory. If both are given, the CLI args would take precedence.
## Consequences
We now support every deployment model of every tool out there with a bunch of simple flags. The semantics are more clear and we can write some nice documentation.
We now support every deployment model of every tool out there with a bunch of
simple flags. The semantics are more clear and we can write some nice
documentation.
The install code has to be reworked, since nixos-anywhere has problems with evalHost and targetHost being the same machine, So we would need to kexec first and use the kexec image (or installer) as the evalHost afterwards.
The install code has to be reworked, since nixos-anywhere has problems with
evalHost and targetHost being the same machine, So we would need to kexec first
and use the kexec image (or installer) as the evalHost afterwards.
In cases where the evalHost doesn't have access to the targetHost or buildHost, we need to setup temporary entries for the lifetime of the command.
In cases where the evalHost doesn't have access to the targetHost or buildHost,
we need to setup temporary entries for the lifetime of the command.

View File

@@ -1,13 +1,15 @@
# Architecture Decision Records
This section contains the architecture decisions that have been reviewed and generally agreed upon
This section contains the architecture decisions that have been reviewed and
generally agreed upon
## What is an ADR?
> An architecture decision record (ADR) is a document that captures an important architecture decision made along with its context and consequences.
> An architecture decision record (ADR) is a document that captures an important
> architecture decision made along with its context and consequences.
!!! Note
For further reading about adr's we recommend [architecture-decision-record](https://github.com/joelparkerhenderson/architecture-decision-record)
!!! Note For further reading about adr's we recommend
[architecture-decision-record](https://github.com/joelparkerhenderson/architecture-decision-record)
## Crafting a new ADR

View File

@@ -1,7 +1,9 @@
# Decision record template by Michael Nygard
This is the template in [Documenting architecture decisions - Michael Nygard](http://thinkrelevance.com/blog/2011/11/15/documenting-architecture-decisions).
You can use [adr-tools](https://github.com/npryce/adr-tools) for managing the ADR files.
This is the template in
[Documenting architecture decisions - Michael Nygard](http://thinkrelevance.com/blog/2011/11/15/documenting-architecture-decisions).
You can use [adr-tools](https://github.com/npryce/adr-tools) for managing the
ADR files.
In each ADR file, write these sections:
@@ -9,7 +11,8 @@ In each ADR file, write these sections:
## Status
What is the status, such as proposed, accepted, rejected, deprecated, superseded, etc.?
What is the status, such as proposed, accepted, rejected, deprecated,
superseded, etc.?
## Context

View File

@@ -1,11 +1,14 @@
## Using Age Plugins
If you wish to use a key generated using an [age plugin] as your admin key, extra care is needed.
If you wish to use a key generated using an [age plugin] as your admin key,
extra care is needed.
You must **precede your secret key with a comment that contains its corresponding recipient**.
You must **precede your secret key with a comment that contains its
corresponding recipient**.
This is usually output as part of the generation process
and is only required because there is no unified mechanism for recovering a recipient from a plugin secret key.
This is usually output as part of the generation process and is only required
because there is no unified mechanism for recovering a recipient from a plugin
secret key.
Here is an example:
@@ -14,15 +17,16 @@ Here is an example:
AGE-PLUGIN-FIDO2-HMAC-1QQPQZRFR7ZZ2WCV...
```
!!! note
The comment that precedes the plugin secret key need only contain the recipient.
Any other text is ignored.
!!! note The comment that precedes the plugin secret key need only contain the
recipient. Any other text is ignored.
In the example above, you can specify `# recipient: age1zdy...`, `# public: age1zdy....` or even
just `# age1zdy....`
```
In the example above, you can specify `# recipient: age1zdy...`, `# public: age1zdy....` or even
just `# age1zdy....`
```
You will need to add an entry into your `flake.nix` to ensure that the necessary `age` plugins
are loaded when using Clan:
You will need to add an entry into your `flake.nix` to ensure that the necessary
`age` plugins are loaded when using Clan:
```nix title="flake.nix"
{

View File

@@ -1,4 +1,3 @@
This guide explains how to set up and manage
[BorgBackup](https://borgbackup.readthedocs.io/) for secure, efficient backups
in a clan network. BorgBackup provides:
@@ -34,11 +33,13 @@ inventory.instances = {
The input should be named according to your flake input. Jon is configured as a
client machine with a destination pointing to a Hetzner Storage Box.
To see a list of all possible options go to [borgbackup clan service](../reference/clanServices/borgbackup.md)
To see a list of all possible options go to
[borgbackup clan service](../reference/clanServices/borgbackup.md)
## Roles
A Clan Service can have multiple roles, each role applies different nix config to the machine.
A Clan Service can have multiple roles, each role applies different nix config
to the machine.
### 1. Client
@@ -61,8 +62,8 @@ Destinations can be:
## State management
Backups are based on [states](../reference/clan.core/state.md). A state
defines which files should be backed up and how these files are obtained through
Backups are based on [states](../reference/clan.core/state.md). A state defines
which files should be backed up and how these files are obtained through
pre/post backup and restore scripts.
Here's an example for a user application `linkding`:
@@ -123,7 +124,8 @@ clan.core.state.linkding = {
## Managing backups
In this section we go over how to manage your collection of backups with the clan command.
In this section we go over how to manage your collection of backups with the
clan command.
### Listing states
@@ -177,7 +179,7 @@ storagebox::username@username.your-storagebox.de:/./borgbackup::jon-storagebox-2
### Restoring backups
For restoring a backup you have two options.
For restoring a backup you have two options.
#### Full restoration
@@ -194,6 +196,3 @@ To restore only a specific service (e.g., `linkding`):
```bash
clan backups restore --service linkding jon borgbackup storagebox::u444061@u444061.your-storagebox.de:/./borgbackup::jon-storagebox-2025-07-24T06:02:35
```

View File

@@ -1,22 +1,22 @@
# Using the Inventory
# Using `clanServices`
Clan's inventory system is a composable way to define and deploy services across
machines.
Clan's `clanServices` system is a composable way to define and deploy services
across machines.
This guide shows how to **instantiate** a `clanService`, explains how service
definitions are structured in your inventory, and how to pick or create services
from modules exposed by flakes.
The term **Multi-host-modules** was introduced previously in the [nixus
repository](https://github.com/infinisil/nixus) and represents a similar
The term **Multi-host-modules** was introduced previously in the
[nixus repository](https://github.com/infinisil/nixus) and represents a similar
concept.
______________________________________________________________________
## Overview
Services are used in `inventory.instances`, and assigned to *roles* and
*machines* -- meaning you decide which machines run which part of the service.
Services are used in `inventory.instances`, and then they attach to *roles* and
*machines* meaning you decide which machines run which part of the service.
For example:
@@ -24,131 +24,117 @@ For example:
inventory.instances = {
borgbackup = {
roles.client.machines."laptop" = {};
roles.client.machines."workstation" = {};
roles.client.machines."server1" = {};
roles.server.machines."backup-box" = {};
};
}
```
This says: "Run borgbackup as a *client* on my *laptop* and *workstation*, and
as a *server* on *backup-box*". `client` and `server` are roles defined by the
`borgbackup` service.
This says: Run borgbackup as a *client* on my *laptop* and *server1*, and as a
*server* on *backup-box*.”
## Module source specification
Each instance includes a reference to a **module specification** -- this is how
Clan knows which service module to use and where it came from.
Each instance includes a reference to a **module specification** this is how
Clan knows which service module to use and where it came from. Usually one would
just use `imports` but we needd to make the `module source` configurable via
Python API. By default it is not required to specify the `module`, in which case
it defaults to the preprovided services of clan-core.
It is not required to specify the `module.input` parameter, in which case it
defaults to the pre-provided services of clan-core. In a similar fashion, the
`module.name` parameter can also be omitted, it will default to the name of the
instance.
______________________________________________________________________
## Override Example
Example of instantiating a `borgbackup` service using `clan-core`:
```nix
inventory.instances = {
borgbackup = { # <- Instance name
# This can be partially/fully specified,
# - If the instance name is not the name of the module
# - If the input is not clan-core
# module = {
# name = "borgbackup"; # Name of the module (optional)
# input = "clan-core"; # The flake input where the service is defined (optional)
# };
# Instance Name: Different name for this 'borgbackup' instance
borgbackup = {
# Since this is instances."borgbackup" the whole `module = { ... }` below is equivalent and optional.
module = {
name = "borgbackup"; # <-- Name of the module (optional)
input = "clan-core"; # <-- The flake input where the service is defined (optional)
};
# Participation of the machines is defined via roles
# Right side needs to be an attribute set. Its purpose will become clear later
roles.client.machines."machine-a" = {};
roles.server.machines."backup-host" = {};
};
}
```
## Module Settings
If you used `clan-core` as an input attribute for your flake:
Each role might expose configurable options. See clan's [clanServices
reference](../reference/clanServices/index.md) for all available options.
```nix
# ↓ module.input = "clan-core"
inputs.clan-core.url = "https://git.clan.lol/clan/clan-core/archive/main.tar.gz";
```
Settings can be set in per-machine or per-role. The latter is applied to all
machines that are assigned to that role.
## Simplified Example
If only one instance is needed for a service and the service is a clan core
service, the `module` definition can be omitted.
```nix
# Simplified way of specifying a single instance
inventory.instances = {
# instance name is `borgbackup` -> clan core module `borgbackup` will be loaded.
borgbackup = {
# Participation of the machines is defined via roles
# Right side needs to be an attribute set. Its purpose will become clear later
roles.client.machines."machine-a" = {};
roles.server.machines."backup-host" = {};
};
}
```
## Configuration Example
Each role might expose configurable options
See clan's [clanServices reference](../reference/clanServices/index.md) for
available options
```nix
inventory.instances = {
borgbackup = {
# Settings for 'machine-a'
borgbackup-example = {
module = {
name = "borgbackup";
input = "clan-core";
};
roles.client.machines."machine-a" = {
# 'client' -Settings of 'machine-a'
settings = {
backupFolders = [
/home
/var
];
};
# ---------------------------
};
# Settings for all machines of the role "server"
roles.server.settings = {
directory = "/var/lib/borgbackup";
};
roles.server.machines."backup-host" = {};
};
}
```
## Tags
Tags can be used to assign multiple machines to a role at once. It can be thought of as a grouping mechanism.
For example using the `all` tag for services that you want to be configured on all
your machines is a common pattern.
The following example could be used to backup all your machines to a common
backup server
Multiple members can be defined using tags as follows
```nix
inventory.instances = {
borgbackup = {
# "All" machines are assigned to the borgbackup 'client' role
roles.client.tags = [ "all" ];
# But only one specific machine (backup-host) is assigned to the 'server' role
roles.server.machines."backup-host" = {};
};
}
```
## Sharing additional Nix configuration
Sometimes you need to add custom NixOS configuration alongside your clan
services. The `extraModules` option allows you to include additional NixOS
configuration that is applied for every machine assigned to that role.
There are multiple valid syntaxes for specifying modules:
```nix
inventory.instances = {
borgbackup = {
roles.client = {
# Direct module reference
extraModules = [ ../nixosModules/borgbackup.nix ];
# Or using self (needs to be json serializable)
# See next example, for a workaround.
extraModules = [ self.nixosModules.borgbackup ];
# Or inline module definition, (needs to be json compatible)
extraModules = [
{
# Your module configuration here
# ...
#
# If the module needs to contain non-serializable expressions:
imports = [ ./path/to/non-serializable.nix ];
}
];
borgbackup-example = {
module = {
name = "borgbackup";
input = "clan-core";
};
#
# The 'all' -tag targets all machines
roles.client.tags."all" = {};
# ---------------------------
roles.server.machines."backup-host" = {};
};
}
```
@@ -157,22 +143,27 @@ inventory.instances = {
You can use services exposed by Clan's core module library, `clan-core`.
🔗 See: [List of Available Services in clan-core](../reference/clanServices/index.md)
🔗 See:
[List of Available Services in clan-core](../reference/clanServices/index.md)
## Defining Your Own Service
You can also author your own `clanService` modules.
🔗 Learn how to write your own service: [Authoring a service](../guides/services/community.md)
🔗 Learn how to write your own service:
[Authoring a service](../guides/services/community.md)
You might expose your service module from your flake — this makes it easy for other people to also use your module in their clan.
You might expose your service module from your flake — this makes it easy for
other people to also use your module in their clan.
______________________________________________________________________
## 💡 Tips for Working with clanServices
- You can add multiple inputs to your flake (`clan-core`, `your-org-modules`, etc.) to mix and match services.
- Each service instance is isolated by its key in `inventory.instances`, allowing to deploy multiple versions or roles of the same service type.
- You can add multiple inputs to your flake (`clan-core`, `your-org-modules`,
etc.) to mix and match services.
- Each service instance is isolated by its key in `inventory.instances`,
allowing you to deploy multiple versions or roles of the same service type.
- Roles can target different machines or be scoped dynamically.
______________________________________________________________________

View File

@@ -1,16 +1,21 @@
Here are some methods for debugging and testing the clan-cli
## Using a Development Branch
To streamline your development process, I suggest not installing `clan-cli`. Instead, clone the `clan-core` repository and add `clan-core/pkgs/clan-cli/bin` to your PATH to use the checked-out version directly.
To streamline your development process, I suggest not installing `clan-cli`.
Instead, clone the `clan-core` repository and add `clan-core/pkgs/clan-cli/bin`
to your PATH to use the checked-out version directly.
!!! Note
After cloning, navigate to `clan-core/pkgs/clan-cli` and execute `direnv allow` to activate the devshell. This will set up a symlink to nixpkgs at a specific location; without it, `clan-cli` won't function correctly.
!!! Note After cloning, navigate to `clan-core/pkgs/clan-cli` and execute
`direnv allow` to activate the devshell. This will set up a symlink to nixpkgs
at a specific location; without it, `clan-cli` won't function correctly.
With this setup, you can easily use [breakpoint()](https://docs.python.org/3/library/pdb.html) to inspect the application's internal state as needed.
With this setup, you can easily use
[breakpoint()](https://docs.python.org/3/library/pdb.html) to inspect the
application's internal state as needed.
This approach is feasible because `clan-cli` only requires a Python interpreter and has no other dependencies.
This approach is feasible because `clan-cli` only requires a Python interpreter
and has no other dependencies.
```nix
pkgs.mkShell {
@@ -26,11 +31,17 @@ pkgs.mkShell {
## Debugging nixos-anywhere
If you encounter a bug in a complex shell script such as `nixos-anywhere`, start by replacing the `nixos-anywhere` command with a local checkout of the project, look in the [contribution](./CONTRIBUTING.md) section for an example.
If you encounter a bug in a complex shell script such as `nixos-anywhere`, start
by replacing the `nixos-anywhere` command with a local checkout of the project,
look in the [contribution](./CONTRIBUTING.md) section for an example.
## The Debug Flag
You can enhance your debugging process with the `--debug` flag in the `clan` command. When you add this flag to any command, it displays all subprocess commands initiated by `clan` in a readable format, along with the source code position that triggered them. This feature makes it easier to understand and trace what's happening under the hood.
You can enhance your debugging process with the `--debug` flag in the `clan`
command. When you add this flag to any command, it displays all subprocess
commands initiated by `clan` in a readable format, along with the source code
position that triggered them. This feature makes it easier to understand and
trace what's happening under the hood.
```bash
$ clan machines list --debug 1
@@ -53,46 +64,60 @@ wintux
## VSCode
If you're using VSCode, it has a handy feature that makes paths to source code files clickable in the integrated terminal. Combined with the previously mentioned techniques, this allows you to open a Clan in VSCode, execute a command like `clan machines list --debug`, and receive a printed path to the code that initiates the subprocess. With the `Ctrl` key (or `Cmd` on macOS) and a mouse click, you can jump directly to the corresponding line in the code file and add a `breakpoint()` function to it, to inspect the internal state.
If you're using VSCode, it has a handy feature that makes paths to source code
files clickable in the integrated terminal. Combined with the previously
mentioned techniques, this allows you to open a Clan in VSCode, execute a
command like `clan machines list --debug`, and receive a printed path to the
code that initiates the subprocess. With the `Ctrl` key (or `Cmd` on macOS) and
a mouse click, you can jump directly to the corresponding line in the code file
and add a `breakpoint()` function to it, to inspect the internal state.
## Finding Print Messages
To trace the origin of print messages in `clan-cli`, you can enable special debugging features using environment variables:
To trace the origin of print messages in `clan-cli`, you can enable special
debugging features using environment variables:
- Set `TRACE_PRINT=1` to include the source location with each print message:
```bash
export TRACE_PRINT=1
```
When running commands with `--debug`, every print will show where it was triggered in the code.
- To see a deeper stack trace for each print, set `TRACE_DEPTH` to the desired number of stack frames (e.g., 3):
```bash
export TRACE_DEPTH=3
```
```bash
export TRACE_PRINT=1
```
When running commands with `--debug`, every print will show where it was
triggered in the code.
- To see a deeper stack trace for each print, set `TRACE_DEPTH` to the desired
number of stack frames (e.g., 3):
```bash
export TRACE_DEPTH=3
```
### Additional Debug Logging
You can enable more detailed logging for specific components by setting these environment variables:
You can enable more detailed logging for specific components by setting these
environment variables:
- `CLAN_DEBUG_NIX_SELECTORS=1` — verbose logs for flake.select operations
- `CLAN_DEBUG_NIX_PREFETCH=1` — verbose logs for flake.prefetch operations
- `CLAN_DEBUG_COMMANDS=1` — print the diffed environment of executed commands
Example:
```bash
export CLAN_DEBUG_NIX_SELECTORS=1
export CLAN_DEBUG_NIX_PREFETCH=1
export CLAN_DEBUG_COMMANDS=1
```
These options help you pinpoint the source and context of print messages and debug logs during development.
These options help you pinpoint the source and context of print messages and
debug logs during development.
## Analyzing Performance
To understand what's causing slow performance, set the environment variable `export CLAN_CLI_PERF=1`. When you complete a clan command, you'll see a summary of various performance metrics, helping you identify what's taking up time.
To understand what's causing slow performance, set the environment variable
`export CLAN_CLI_PERF=1`. When you complete a clan command, you'll see a summary
of various performance metrics, helping you identify what's taking up time.
## See all possible packages and tests
@@ -102,7 +127,8 @@ To quickly show all possible packages and tests execute:
nix flake show
```
Under `checks` you will find all tests that are executed in our CI. Under `packages` you find all our projects.
Under `checks` you will find all tests that are executed in our CI. Under
`packages` you find all our projects.
```
git+file:///home/lhebendanz/Projects/clan-core
@@ -137,18 +163,22 @@ git+file:///home/lhebendanz/Projects/clan-core
└───default: template: Initialize a new clan flake
```
You can execute every test separately by following the tree path `nix run .#checks.x86_64-linux.clan-pytest -L` for example.
You can execute every test separately by following the tree path
`nix run .#checks.x86_64-linux.clan-pytest -L` for example.
## Test Locally in Devshell with Breakpoints
To test the CLI locally in a development environment and set breakpoints for debugging, follow these steps:
To test the CLI locally in a development environment and set breakpoints for
debugging, follow these steps:
1. Run the following command to execute your tests and allow for debugging with breakpoints:
1. Run the following command to execute your tests and allow for debugging with
breakpoints:
```bash
cd ./pkgs/clan-cli
pytest -n0 -s --maxfail=1 ./tests/test_nameofthetest.py
```
You can place `breakpoint()` in your Python code where you want to trigger a breakpoint for debugging.
You can place `breakpoint()` in your Python code where you want to trigger a
breakpoint for debugging.
## Test Locally in a Nix Sandbox
@@ -166,19 +196,21 @@ nix build .#checks.x86_64-linux.clan-pytest-without-core
If you need to inspect the Nix sandbox while running tests, follow these steps:
1. Insert an endless sleep into your test code where you want to pause the execution. For example:
1. Insert an endless sleep into your test code where you want to pause the
execution. For example:
```python
import time
time.sleep(3600) # Sleep for one hour
```
2. Use `cntr` and `psgrep` to attach to the Nix sandbox. This allows you to interactively debug your code while it's paused. For example:
2. Use `cntr` and `psgrep` to attach to the Nix sandbox. This allows you to
interactively debug your code while it's paused. For example:
```bash
psgrep <your_python_process_name>
cntr attach <container id, container name or process id>
```
Or you can also use the [nix breakpoint hook](https://nixos.org/manual/nixpkgs/stable/#breakpointhook)
Or you can also use the
[nix breakpoint hook](https://nixos.org/manual/nixpkgs/stable/#breakpointhook)

View File

@@ -2,9 +2,11 @@
Each feature added to clan should be tested extensively via automated tests.
This document covers different methods of automated testing, including creating, running and debugging such tests.
This document covers different methods of automated testing, including creating,
running and debugging such tests.
In order to test the behavior of clan, different testing frameworks are used depending on the concern:
In order to test the behavior of clan, different testing frameworks are used
depending on the concern:
- NixOS VM tests: for high level integration
- NixOS container tests: for high level integration
@@ -13,37 +15,48 @@ In order to test the behavior of clan, different testing frameworks are used dep
## NixOS VM Tests
The [NixOS VM Testing Framework](https://nixos.org/manual/nixos/stable/index.html#sec-nixos-tests) is used to create high level integration tests, by running one or more VMs generated from a specified config. Commands can be executed on the booted machine(s) to verify a deployment of a service works as expected. All machines within a test are connected by a virtual network. Internet access is not available.
The
[NixOS VM Testing Framework](https://nixos.org/manual/nixos/stable/index.html#sec-nixos-tests)
is used to create high level integration tests, by running one or more VMs
generated from a specified config. Commands can be executed on the booted
machine(s) to verify a deployment of a service works as expected. All machines
within a test are connected by a virtual network. Internet access is not
available.
### When to use VM tests
- testing that a service defined through a clan module works as expected after deployment
- testing that a service defined through a clan module works as expected after
deployment
- testing clan-cli subcommands which require accessing a remote machine
### When not to use VM tests
NixOS VM Tests are slow and expensive. They should only be used for testing high level integration of components.
VM tests should be avoided wherever it is possible to implement a cheaper unit test instead.
NixOS VM Tests are slow and expensive. They should only be used for testing high
level integration of components. VM tests should be avoided wherever it is
possible to implement a cheaper unit test instead.
- testing detailed behavior of a certain clan-cli command -> use unit testing via pytest instead
- testing detailed behavior of a certain clan-cli command -> use unit testing
via pytest instead
- regression testing -> add a unit test
### Finding examples for VM tests
Existing nixos vm tests in clan-core can be found by using ripgrep:
```shellSession
rg self.clanLib.test.baseTest
```
### Locating definitions of failing VM tests
All nixos vm tests in clan are exported as individual flake outputs under `checks.x86_64-linux.{test-attr-name}`.
If a test fails in CI:
All nixos vm tests in clan are exported as individual flake outputs under
`checks.x86_64-linux.{test-attr-name}`. If a test fails in CI:
- look for the job name of the test near the top if the CI Job page, like, for example `gitea:clan/clan-core#checks.x86_64-linux.borgbackup/1242`
- in this case `checks.x86_64-linux.borgbackup` is the attribute path
- note the last element of that attribute path, in this case `borgbackup`
- search for the attribute name inside the `/checks` directory via ripgrep
- look for the job name of the test near the top if the CI Job page, like, for
example `gitea:clan/clan-core#checks.x86_64-linux.borgbackup/1242`
- in this case `checks.x86_64-linux.borgbackup` is the attribute path
- note the last element of that attribute path, in this case `borgbackup`
- search for the attribute name inside the `/checks` directory via ripgrep
example: locating the vm test named `borgbackup`:
@@ -57,14 +70,15 @@ $ rg "borgbackup =" ./checks
### Adding vm tests
Create a nixos test module under `/checks/{name}/default.nix` and import it in `/checks/flake-module.nix`.
Create a nixos test module under `/checks/{name}/default.nix` and import it in
`/checks/flake-module.nix`.
### Running VM tests
```shellSession
nix build .#checks.x86_64-linux.{test-attr-name}
```
(replace `{test-attr-name}` with the name of the test)
### Debugging VM tests
@@ -73,12 +87,14 @@ The following techniques can be used to debug a VM test:
#### Print Statements
Locate the definition (see above) and add print statements, like, for example `print(client.succeed("systemctl --failed"))`, then re-run the test via `nix build` (see above)
Locate the definition (see above) and add print statements, like, for example
`print(client.succeed("systemctl --failed"))`, then re-run the test via
`nix build` (see above)
#### Interactive Shell
- Execute the vm test outside the nix Sandbox via the following command:
`nix run .#checks.x86_64-linux.{test-attr-name}.driver -- --interactive`
`nix run .#checks.x86_64-linux.{test-attr-name}.driver -- --interactive`
- Then run the commands in the machines manually, like for example:
```python3
start_all()
@@ -87,19 +103,22 @@ Locate the definition (see above) and add print statements, like, for example `p
#### Breakpoints
To get an interactive shell at a specific line in the VM test script, add a `breakpoint()` call before the line to debug, then run the test outside of the sandbox via:
`nix run .#checks.x86_64-linux.{test-attr-name}.driver`
To get an interactive shell at a specific line in the VM test script, add a
`breakpoint()` call before the line to debug, then run the test outside of the
sandbox via: `nix run .#checks.x86_64-linux.{test-attr-name}.driver`
## NixOS Container Tests
Those are very similar to NixOS VM tests, as in they run virtualized nixos machines, but instead of using VMs, they use containers which are much cheaper to launch.
As of now the container test driver is a downstream development in clan-core.
Basically everything stated under the NixOS VM tests sections applies here, except some limitations.
Those are very similar to NixOS VM tests, as in they run virtualized nixos
machines, but instead of using VMs, they use containers which are much cheaper
to launch. As of now the container test driver is a downstream development in
clan-core. Basically everything stated under the NixOS VM tests sections applies
here, except some limitations.
Limitations:
- Cannot run in interactive mode, however while the container test runs, it logs a nsenter command that can be used to log into each of the container.
- Cannot run in interactive mode, however while the container test runs, it logs
a nsenter command that can be used to log into each of the container.
- setuid binaries don't work
### Where to find examples for NixOS container tests
@@ -110,10 +129,10 @@ Existing NixOS container tests in clan-core can be found by using `ripgrep`:
rg self.clanLib.test.containerTest
```
## Python tests via pytest
Since the Clan CLI is written in python, the `pytest` framework is used to define unit tests and integration tests via python
Since the Clan CLI is written in python, the `pytest` framework is used to
define unit tests and integration tests via python
Due to superior efficiency,
@@ -121,43 +140,52 @@ Due to superior efficiency,
- writing unit tests for python functions and modules, or bugfixes of such
- all integrations tests that do not require building or running a nixos machine
- impure integrations tests that require internet access (very rare, try to avoid)
- impure integrations tests that require internet access (very rare, try to
avoid)
### When not to use python tests
- integrations tests that require building or running a nixos machine (use NixOS VM or container tests instead)
- integrations tests that require building or running a nixos machine (use NixOS
VM or container tests instead)
- testing behavior of a nix function or library (use nix eval tests instead)
### Finding examples of python tests
Existing python tests in clan-core can be found by using `ripgrep`:
```shellSession
rg "import pytest"
```
### Locating definitions of failing python tests
If any python test fails in the CI pipeline, an error message like this can be found at the end of the log:
If any python test fails in the CI pipeline, an error message like this can be
found at the end of the log:
```
...
FAILED tests/test_machines_cli.py::test_machine_delete - clan_lib.errors.ClanError: Template 'new-machine' not in 'inputs.clan-core
...
```
In this case the test is defined in the file `/tests/test_machines_cli.py` via the test function `test_machine_delete`.
In this case the test is defined in the file `/tests/test_machines_cli.py` via
the test function `test_machine_delete`.
### Adding python tests
If a specific python module is tested, the test should be located near the tested module in a subdirectory called `./tests`
If the test is not clearly related to a specific module, put it in the top-level `./tests` directory of the tested python package. For `clan-cli` this would be `/pkgs/clan-cli/clan_cli/tests`.
All filenames must be prefixed with `test_` and test functions prefixed with `test_` for pytest to discover them.
If a specific python module is tested, the test should be located near the
tested module in a subdirectory called `./tests` If the test is not clearly
related to a specific module, put it in the top-level `./tests` directory of the
tested python package. For `clan-cli` this would be
`/pkgs/clan-cli/clan_cli/tests`. All filenames must be prefixed with `test_` and
test functions prefixed with `test_` for pytest to discover them.
### Running python tests
#### Running all python tests
To run all python tests which are executed in the CI pipeline locally, use this `nix build` command
To run all python tests which are executed in the CI pipeline locally, use this
`nix build` command
```shellSession
nix build .#checks.x86_64-linux.clan-pytest-{with,without}-core
@@ -168,21 +196,27 @@ nix build .#checks.x86_64-linux.clan-pytest-{with,without}-core
To run a specific python test outside the nix sandbox
1. Enter the development environment of the python package, by either:
- Having direnv enabled and entering the directory of the package (eg. `/pkgs/clan-cli`)
- Or using the command `select-shell {package}` in the top-level dev shell of clan-core, (eg. `switch-shell clan-cli`)
- Having direnv enabled and entering the directory of the package (eg.
`/pkgs/clan-cli`)
- Or using the command `select-shell {package}` in the top-level dev shell of
clan-core, (eg. `switch-shell clan-cli`)
2. Execute the test via pytest using issuing
`pytest ./path/to/test_file.py:test_function_name -s -n0`
The flags `-sn0` are useful to forwards all stdout/stderr output to the terminal and be able to debug interactively via `breakpoint()`.
`pytest ./path/to/test_file.py:test_function_name -s -n0`
The flags `-sn0` are useful to forwards all stdout/stderr output to the terminal
and be able to debug interactively via `breakpoint()`.
### Debugging python tests
To debug a specific python test, find its definition (see above) and make sure to enter the correct dev environment for that python package.
To debug a specific python test, find its definition (see above) and make sure
to enter the correct dev environment for that python package.
Modify the test and add `breakpoint()` statements to it.
Execute the test using the flags `-sn0` in order to get an interactive shell at the breakpoint:
Execute the test using the flags `-sn0` in order to get an interactive shell at
the breakpoint:
```shelSession
pytest ./path/to/test_file.py:test_function_name -sn0
@@ -234,7 +268,9 @@ Failing nix eval tests look like this:
> error: Tests failed
```
To locate the definition, find the flake attribute name of the failing test near the top of the CI Job page, like for example `gitea:clan/clan-core#checks.x86_64-linux.eval-lib-values/1242`.
To locate the definition, find the flake attribute name of the failing test near
the top of the CI Job page, like for example
`gitea:clan/clan-core#checks.x86_64-linux.eval-lib-values/1242`.
In this case `eval-lib-values` is the attribute we are looking for.
@@ -247,7 +283,8 @@ lib/values/flake-module.nix
grmpf@grmpf-nix ~/p/c/clan-core (test-docs)>
```
In this case the test is defined in the file `lib/values/flake-module.nix` line 21
In this case the test is defined in the file `lib/values/flake-module.nix` line
21
### Adding nix eval tests
@@ -255,20 +292,22 @@ In clan core, the following pattern is usually followed:
- tests are put in a `test.nix` file
- a CI Job is exposed via a `flake-module.nix`
- that `flake-module.nix` is imported via the `flake.nix` at the root of the project
- that `flake-module.nix` is imported via the `flake.nix` at the root of the
project
For example see `/lib/values/{test.nix,flake-module.nix}`.
### Running nix eval tests
Since all nix eval tests are exposed via the flake outputs, they can be ran via `nix build`:
Since all nix eval tests are exposed via the flake outputs, they can be ran via
`nix build`:
```shellSession
nix build .#checks.x86_64-linux.{test-attr-name}
```
For quicker iteration times, instead of `nix build` use the `nix-unit` command available in the dev environment.
Example:
For quicker iteration times, instead of `nix build` use the `nix-unit` command
available in the dev environment. Example:
```shellSession
nix-unit --flake .#legacyPackages.x86_64-linux.{test-attr-name}
@@ -276,19 +315,23 @@ nix-unit --flake .#legacyPackages.x86_64-linux.{test-attr-name}
### Debugging nix eval tests
Follow the instructions above to find the definition of the test, then use one of the following techniques:
Follow the instructions above to find the definition of the test, then use one
of the following techniques:
#### Print debugging
Add `lib.trace` or `lib.traceVal` statements in order to print some variables during evaluation
Add `lib.trace` or `lib.traceVal` statements in order to print some variables
during evaluation
#### Nix repl
Use `nix repl` to evaluate and inspect the test.
Each test consists of an `expr` (expression) and an `expected` field. `nix-unit` simply checks if `expr == expected` and prints the diff if that's not the case.
Each test consists of an `expr` (expression) and an `expected` field. `nix-unit`
simply checks if `expr == expected` and prints the diff if that's not the case.
`nix repl` can be used to inspect an `expr` manually, or any other variables that you choose to expose.
`nix repl` can be used to inspect an `expr` manually, or any other variables
that you choose to expose.
Example:

View File

@@ -1,34 +1,26 @@
This guide provides an example setup for a single-disk ZFS system with native
encryption, accessible for decryption remotely.
This guide provides an example setup for a single-disk ZFS system with native encryption, accessible for decryption remotely.
!!! Warning This configuration only applies to `systemd-boot` enabled systems
and **requires** UEFI booting.
!!! Warning
This configuration only applies to `systemd-boot` enabled systems and **requires** UEFI booting.
Replace the highlighted lines with your own disk-id. You can find our your
disk-id by executing:
Replace the highlighted lines with your own disk-id.
You can find our your disk-id by executing:
```bash
lsblk --output NAME,ID-LINK,FSTYPE,SIZE,MOUNTPOINT
```
=== "**Single Disk**" Below is the configuration for `disko.nix`
`nix hl_lines="13 53" --8<-- "docs/code-examples/disko-single-disk.nix" `
=== "**Single Disk**"
Below is the configuration for `disko.nix`
```nix hl_lines="13 53"
--8<-- "docs/code-examples/disko-single-disk.nix"
```
=== "**Raid 1**" Below is the configuration for `disko.nix`
`nix hl_lines="13 53 54" --8<-- "docs/code-examples/disko-raid.nix" `
Below is the configuration for `initrd.nix`. Replace `<yourkey>` with your ssh
public key. Replace `kernelModules` with the ethernet module loaded one on your
target machine.
=== "**Raid 1**"
Below is the configuration for `disko.nix`
```nix hl_lines="13 53 54"
--8<-- "docs/code-examples/disko-raid.nix"
```
Below is the configuration for `initrd.nix`.
Replace `<yourkey>` with your ssh public key.
Replace `kernelModules` with the ethernet module loaded one on your target machine.
```nix hl_lines="18 29"
{config, pkgs, ...}:
@@ -65,7 +57,8 @@ Replace `kernelModules` with the ethernet module loaded one on your target machi
## Copying SSH Public Key
Before starting the installation process, ensure that the SSH public key is copied to the NixOS installer.
Before starting the installation process, ensure that the SSH public key is
copied to the NixOS installer.
1. Copy your public SSH key to the installer, if it has not been copied already:
@@ -93,7 +86,8 @@ nano /tmp/secret.key
blkdiscard /dev/disk/by-id/<installdisk>
```
4. Run `clan` machines install, only running kexec and disko, with the following command:
4. Run `clan` machines install, only running kexec and disko, with the following
command:
```bash
clan machines install gchq-local --target-host root@nixos-installer --phases kexec,disko
@@ -119,25 +113,29 @@ zfs set keylocation=prompt zroot/root
CTRL+D
```
4. Locally generate ssh host keys. You only need to generate ones for the algorithms you're using in `authorizedKeys`.
4. Locally generate ssh host keys. You only need to generate ones for the
algorithms you're using in `authorizedKeys`.
```bash
ssh-keygen -q -N "" -C "" -t ed25519 -f ./initrd_host_ed25519_key
ssh-keygen -q -N "" -C "" -t rsa -b 4096 -f ./initrd_host_rsa_key
```
5. Securely copy your local initrd ssh host keys to the installer's `/mnt` directory:
5. Securely copy your local initrd ssh host keys to the installer's `/mnt`
directory:
```bash
scp ./initrd_host* root@nixos-installer.local:/mnt/var/lib/
```
6. Install nixos to the mounted partitions
```bash
clan machines install gchq-local --target-host root@nixos-installer --phases install
```
7. After the installation process, unmount `/mnt/boot`, change the ZFS mountpoints and unmount all the ZFS volumes by exporting the zpool:
7. After the installation process, unmount `/mnt/boot`, change the ZFS
mountpoints and unmount all the ZFS volumes by exporting the zpool:
```bash
umount /mnt/boot
@@ -164,6 +162,9 @@ ssh -p 7172 root@192.168.178.141
systemd-tty-ask-password-agent
```
After completing these steps, your NixOS should be successfully installed and ready for use.
After completing these steps, your NixOS should be successfully installed and
ready for use.
**Note:** Replace `root@nixos-installer.local` and `192.168.178.141` with the appropriate user and IP addresses for your setup. Also, adjust `<SYS_PATH>` to reflect the correct system path for your environment.
**Note:** Replace `root@nixos-installer.local` and `192.168.178.141` with the
appropriate user and IP addresses for your setup. Also, adjust `<SYS_PATH>` to
reflect the correct system path for your environment.

View File

@@ -1,9 +1,9 @@
!!! Danger ":fontawesome-solid-road-barrier: Under Construction
:fontawesome-solid-road-barrier:" Currently under construction use with caution
!!! Danger ":fontawesome-solid-road-barrier: Under Construction :fontawesome-solid-road-barrier:"
Currently under construction use with caution
:fontawesome-solid-road-barrier: :fontawesome-solid-road-barrier: :fontawesome-solid-road-barrier:
```
:fontawesome-solid-road-barrier: :fontawesome-solid-road-barrier: :fontawesome-solid-road-barrier:
```
## Structure
@@ -20,13 +20,16 @@ A disk template consists of exactly two files
## `default.nix`
Placeholders are filled with their machine specific options when a template is used for a machine.
Placeholders are filled with their machine specific options when a template is
used for a machine.
The user can choose any valid options from the hardware report.
The file itself is then copied to `machines/{machineName}/disko.nix` and will be automatically loaded by the machine.
The file itself is then copied to `machines/{machineName}/disko.nix` and will be
automatically loaded by the machine.
`single-disk/default.nix`
```
{
disko.devices = {
@@ -42,9 +45,11 @@ The file itself is then copied to `machines/{machineName}/disko.nix` and will be
## Placeholders
Each template must declare the options of its placeholders depending on the hardware-report.
Each template must declare the options of its placeholders depending on the
hardware-report.
`api/disk.py`
```py
templates: dict[str, dict[str, Callable[[dict[str, Any]], Placeholder]]] = {
"single-disk": {
@@ -56,24 +61,25 @@ templates: dict[str, dict[str, Callable[[dict[str, Any]], Placeholder]]] = {
}
```
Introducing new local or global placeholders requires contributing to clan-core `api/disks.py`.
Introducing new local or global placeholders requires contributing to clan-core
`api/disks.py`.
### Predefined placeholders
Some placeholders provide predefined functionality
- `uuid`: In most cases we recommend adding a unique id to all disks. This prevents the system to false boot from i.e. hot-plugged devices.
```
disko.devices = {
disk = {
main = {
name = "main-{{uuid}}";
...
}
- `uuid`: In most cases we recommend adding a unique id to all disks. This
prevents the system to false boot from i.e. hot-plugged devices.
```
disko.devices = {
disk = {
main = {
name = "main-{{uuid}}";
...
}
}
```
}
```
## Readme
@@ -90,5 +96,5 @@ Use this schema for simple setups where ....
```
The format and fields of this file is not clear yet. We might change that once fully implemented.
The format and fields of this file is not clear yet. We might change that once
fully implemented.

View File

@@ -1,11 +1,13 @@
Clan supports integration with [flake-parts](https://flake.parts/), a framework for constructing your `flake.nix` using modules.
Clan supports integration with [flake-parts](https://flake.parts/), a framework
for constructing your `flake.nix` using modules.
To construct your Clan using flake-parts, follow these steps:
## Update Your Flake Inputs
To begin, you'll need to add `flake-parts` as a new dependency in your flake's inputs. This is alongside the already existing dependencies, such as `clan-core` and `nixpkgs`. Here's how you can update your `flake.nix` file:
To begin, you'll need to add `flake-parts` as a new dependency in your flake's
inputs. This is alongside the already existing dependencies, such as `clan-core`
and `nixpkgs`. Here's how you can update your `flake.nix` file:
```nix
# flake.nix
@@ -27,7 +29,9 @@ inputs = {
## Import the Clan flake-parts Module
After updating your flake inputs, the next step is to import the Clan flake-parts module. This will make the [Clan options](/options) available within `mkFlake`.
After updating your flake inputs, the next step is to import the Clan
flake-parts module. This will make the [Clan options](/options) available within
`mkFlake`.
```nix
{
@@ -45,7 +49,8 @@ After updating your flake inputs, the next step is to import the Clan flake-part
## Configure Clan Settings and Define Machines
Next you'll need to configure Clan wide settings and define machines, here's an example of how `flake.nix` should look:
Next you'll need to configure Clan wide settings and define machines, here's an
example of how `flake.nix` should look:
```nix
{
@@ -90,7 +95,9 @@ Next you'll need to configure Clan wide settings and define machines, here's an
}
```
For detailed information about configuring `flake-parts` and the available options within Clan,
refer to the [Clan module](https://git.clan.lol/clan/clan-core/src/branch/main/flakeModules/clan.nix) documentation.
For detailed information about configuring `flake-parts` and the available
options within Clan, refer to the
[Clan module](https://git.clan.lol/clan/clan-core/src/branch/main/flakeModules/clan.nix)
documentation.
---
______________________________________________________________________

View File

@@ -2,9 +2,11 @@
Machines can be added using the following methods
- Create a file `machines/{machine_name}/configuration.nix` (See: [File Autoincludes](../../concepts/autoincludes.md))
- Create a file `machines/{machine_name}/configuration.nix` (See:
[File Autoincludes](../../concepts/autoincludes.md))
- Imperative via cli command: `clan machines create`
- Editing nix expressions in flake.nix See [`clan-core.lib.clan`](/options/?scope=Flake Options (clan.nix file))
- Editing nix expressions in flake.nix See
\[`clan-core.lib.clan`\](/options/?scope=Flake Options (clan.nix file))
See the complete [list](../../concepts/autoincludes.md) of auto-loaded files.
@@ -12,43 +14,49 @@ See the complete [list](../../concepts/autoincludes.md) of auto-loaded files.
=== "clan.nix (declarative)"
```{.nix hl_lines="3-4"}
{
inventory.machines = {
# Define a machine
jon = { };
};
````
```{.nix hl_lines="3-4"}
{
inventory.machines = {
# Define a machine
jon = { };
};
# Additional NixOS configuration can be added here.
# machines/jon/configuration.nix will be automatically imported.
# See: https://docs.clan.lol/guides/more-machines/#automatic-registration
machines = {
# jon = { config, ... }: {
# environment.systemPackages = [ pkgs.asciinema ];
# };
};
}
```
# Additional NixOS configuration can be added here.
# machines/jon/configuration.nix will be automatically imported.
# See: https://docs.clan.lol/guides/more-machines/#automatic-registration
machines = {
# jon = { config, ... }: {
# environment.systemPackages = [ pkgs.asciinema ];
# };
};
}
```
````
=== "CLI (imperative)"
```sh
clan machines create jon
```
````
```sh
clan machines create jon
```
The imperative command might create a machine folder in `machines/jon`
And might persist information in `inventory.json`
The imperative command might create a machine folder in `machines/jon`
And might persist information in `inventory.json`
````
### Configuring a machine
!!! Note
The option: `inventory.machines.<name>` is used to define metadata about the machine
That includes for example `deploy.targethost` `machineClass` or `tags`
!!! Note The option: `inventory.machines.<name>` is used to define metadata
about the machine That includes for example `deploy.targethost` `machineClass`
or `tags`
The option: `machines.<name>` is used to add extra *nixosConfiguration* to a machine
```
The option: `machines.<name>` is used to add extra *nixosConfiguration* to a machine
```
Add the following to your `clan.nix` file for each machine.
This example demonstrates what is needed based on a machine called `jon`:
Add the following to your `clan.nix` file for each machine. This example
demonstrates what is needed based on a machine called `jon`:
```{.nix .annotate title="clan.nix" hl_lines="3-6 15-19"}
{
@@ -74,8 +82,10 @@ This example demonstrates what is needed based on a machine called `jon`:
}
```
1. Tags can be used to automatically add this machine to services later on. - You dont need to set this now.
2. Add your *ssh key* here - That will ensure you can always login to your machine via *ssh* in case something goes wrong.
1. Tags can be used to automatically add this machine to services later on. -
You dont need to set this now.
2. Add your *ssh key* here - That will ensure you can always login to your
machine via *ssh* in case something goes wrong.
### (Optional) Create a `configuration.nix`
@@ -94,8 +104,9 @@ This example demonstrates what is needed based on a machine called `jon`:
### (Optional) Renaming a Machine
Older templates included static machine folders like `jon` and `sara`.
If your setup still uses such static machines, you can rename a machine folder to match your own machine name:
Older templates included static machine folders like `jon` and `sara`. If your
setup still uses such static machines, you can rename a machine folder to match
your own machine name:
```bash
git mv ./machines/jon ./machines/<your-machine-name>
@@ -103,8 +114,8 @@ git mv ./machines/jon ./machines/<your-machine-name>
Since your Clan configuration lives inside a Git repository, remember:
* Only files tracked by Git (`git add`) are recognized.
* Whenever you add, rename, or remove files, run:
- Only files tracked by Git (`git add`) are recognized.
- Whenever you add, rename, or remove files, run:
```bash
git add ./machines/<your-machine-name>
@@ -112,14 +123,17 @@ git add ./machines/<your-machine-name>
to stage the changes.
---
______________________________________________________________________
### (Optional) Removing a Machine
If you want to work with a single machine for now, you can remove other machine entries both from your `flake.nix` and from the `machines` directory. For example, to remove the machine `sara`:
If you want to work with a single machine for now, you can remove other machine
entries both from your `flake.nix` and from the `machines` directory. For
example, to remove the machine `sara`:
```bash
git rm -rf ./machines/sara
```
Make sure to also remove or update any references to that machine in your `nix files` or `inventory.json` if you have any of that
Make sure to also remove or update any references to that machine in your
`nix files` or `inventory.json` if you have any of that

View File

@@ -1,19 +1,23 @@
# How to add services
A service in clan is a self-contained, reusable unit of system configuration that provides a specific piece of functionality across one or more machines.
A service in clan is a self-contained, reusable unit of system configuration
that provides a specific piece of functionality across one or more machines.
Think of it as a recipe for running a tool — like automatic backups, VPN networking, monitoring, etc.
Think of it as a recipe for running a tool — like automatic backups, VPN
networking, monitoring, etc.
In Clan Services are multi-Host & role-based:
- Roles map machines to logical service responsibilities, enabling structured, clean deployments.
- Roles map machines to logical service responsibilities, enabling structured,
clean deployments.
- You can use tags instead of explicit machine names.
To learn more: [Guide about clanService](../clanServices.md)
!!! Important
It is recommended to add at least one networking service such as `zerotier` that allows to reach all your clan machines from your setup computer across the globe.
!!! Important It is recommended to add at least one networking service such as
`zerotier` that allows to reach all your clan machines from your setup computer
across the globe.
## Configure a Zerotier Network (recommended)
@@ -40,8 +44,10 @@ To learn more: [Guide about clanService](../clanServices.md)
}
```
1. See [reference/clanServices](../../reference/clanServices/index.md) for all available services and how to configure them.
Or read [authoring/clanServices](../../guides/services/community.md) if you want to bring your own
1. See [reference/clanServices](../../reference/clanServices/index.md) for all
available services and how to configure them. Or read
[authoring/clanServices](../../guides/services/community.md) if you want to
bring your own
2. Replace `__YOUR_CONTROLLER_` with the *name* of your machine.
@@ -72,6 +78,9 @@ Adding the following services is recommended for most users:
}
```
1. The `admin` service will generate a **root-password** and **add your ssh-key** that allows for convienient administration.
2. Equivalent to directly setting `authorizedKeys` like in [configuring a machine](./add-machines.md#configuring-a-machine)
3. Adds `user = jon` as a user on all machines. Will create a `home` directory, and prompt for a password before deployment.
1. The `admin` service will generate a **root-password** and **add your
ssh-key** that allows for convienient administration.
2. Equivalent to directly setting `authorizedKeys` like in
[configuring a machine](./add-machines.md#configuring-a-machine)
3. Adds `user = jon` as a user on all machines. Will create a `home` directory,
and prompt for a password before deployment.

View File

@@ -2,8 +2,9 @@
!!! Note "Under construction"
The users concept of clan is not done yet. This guide outlines some solutions from our community.
Defining users can be done in many different ways. We want to highlight two approaches:
The users concept of clan is not done yet. This guide outlines some solutions
from our community. Defining users can be done in many different ways. We want
to highlight two approaches:
- Using clan's [users](../../reference/clanServices/users.md) service.
- Using a custom approach.
@@ -12,8 +13,10 @@ Defining users can be done in many different ways. We want to highlight two appr
To add a first *user* this guide will be leveraging two things:
- [clanServices](../../reference/clanServices/index.md): Allows to bind arbitrary logic to something we call an `ìnstance`.
- [clanServices/users](../../reference/clanServices/users.md): Implements logic for adding a single user perInstance.
- [clanServices](../../reference/clanServices/index.md): Allows to bind
arbitrary logic to something we call an nstance`.
- [clanServices/users](../../reference/clanServices/users.md): Implements logic
for adding a single user perInstance.
The example shows how to add a user called `jon`:
@@ -45,19 +48,23 @@ The example shows how to add a user called `jon`:
}
```
1. Add `user = jon` as a user on all machines. Will create a `home` directory, and prompt for a password before deployment.
1. Add `user = jon` as a user on all machines. Will create a `home` directory,
and prompt for a password before deployment.
2. Add this user to `all` machines
3. Define the `name` of the user to be `jon`
The `users` service creates a `/home/jon` directory, allows `jon` to sign in and will take care of the user's password.
The `users` service creates a `/home/jon` directory, allows `jon` to sign in and
will take care of the user's password.
For more information see [clanService/users](../../reference/clanServices/users.md)
For more information see
[clanService/users](../../reference/clanServices/users.md)
## Using a custom approach
Some people like to define a `users` folder in their repository root.
That allows to bind all user specific logic to a single place (`default.nix`)
Which can be imported into individual machines to make the user available on that machine.
Some people like to define a `users` folder in their repository root. That
allows to bind all user specific logic to a single place (`default.nix`) Which
can be imported into individual machines to make the user available on that
machine.
```bash
.
@@ -72,10 +79,11 @@ Which can be imported into individual machines to make the user available on tha
## using [home-manager](https://github.com/nix-community/home-manager)
When using clan's `users` service it is possible to define extraModules.
In fact this is always possible when using clan's services.
When using clan's `users` service it is possible to define extraModules. In fact
this is always possible when using clan's services.
We can use this property of clan services to bind a nixosModule to the user, which configures home-manager.
We can use this property of clan services to bind a nixosModule to the user,
which configures home-manager.
```{.nix title="clan.nix" hl_lines="22"}
{
@@ -107,11 +115,12 @@ We can use this property of clan services to bind a nixosModule to the user, whi
}
```
1. Type `path` or `string`: Must point to a separate file. Inlining a module is not possible
1. Type `path` or `string`: Must point to a separate file. Inlining a module is
not possible
!!! Note "This is inspiration"
Our community might come up with better solutions soon.
We are seeking contributions to improve this pattern if you have a nicer solution in mind.
!!! Note "This is inspiration" Our community might come up with better solutions
soon. We are seeking contributions to improve this pattern if you have a nicer
solution in mind.
```nix title="users/jon/home.nix"
# NixOS module to import home-manager and the home-manager configuration of 'jon'

View File

@@ -1,8 +1,10 @@
# Configure Disk Config
By default clan uses [disko](https://github.com/nix-community/disko) which allows for declarative disk partitioning.
By default clan uses [disko](https://github.com/nix-community/disko) which
allows for declarative disk partitioning.
To see what disk templates are available run:
```{.shellSession hl_lines="10" .no-copy}
$ clan templates list
@@ -22,13 +24,14 @@ Available 'machine' templates
│ └── test-morph-template: Morph a machine
```
For this guide we will select the `single-disk` template, that uses
`A simple ext4 disk with a single partition`.
For this guide we will select the `single-disk` template, that uses `A simple ext4 disk with a single partition`.
!!! tip
For advanced partitioning, see [Disko templates](https://github.com/nix-community/disko-templates) or [Disko examples](https://github.com/nix-community/disko/tree/master/example).
You can also [contribute a disk template to clan core](https://docs.clan.lol/guides/disko-templates/community/)
!!! tip For advanced partitioning, see
[Disko templates](https://github.com/nix-community/disko-templates) or
[Disko examples](https://github.com/nix-community/disko/tree/master/example).
You can also
[contribute a disk template to clan core](https://docs.clan.lol/guides/disko-templates/community/)
To setup a disk schema for a machine run
@@ -55,22 +58,20 @@ Should now be successful
Applied disk template 'single-disk' to machine 'jon'
```
A disko.nix file should be created in `machines/jon`
You can have a look and customize it if needed.
A disko.nix file should be created in `machines/jon` You can have a look and
customize it if needed.
!!! Danger
Don't change the `disko.nix` after the machine is installed for the first time, unless you really know what you are doing.
Changing disko configuration requires wiping and reinstalling the machine.
!!! Danger Don't change the `disko.nix` after the machine is installed for the
first time, unless you really know what you are doing. Changing disko
configuration requires wiping and reinstalling the machine.
## Deploy the machine
**Finally deployment time!**
This command is destructive and will format your disk and install NixOS on it! It is equivalent to appending `--phases kexec,disko,install,reboot`.
**Finally deployment time!**
This command is destructive and will format your disk and install NixOS on it!
It is equivalent to appending `--phases kexec,disko,install,reboot`.
```bash
clan machines install [MACHINE] --target-host root@<IP>
```

View File

@@ -2,24 +2,26 @@
This guide will help you convert your existing NixOS configurations into a Clan.
!!! Warning
Migrating instead of starting new can be trickier and might lead to bugs or
unexpected issues. We recommend reading the [Getting Started](./index.md) guide first.
!!! Warning Migrating instead of starting new can be trickier and might lead to
bugs or unexpected issues. We recommend reading the
[Getting Started](./index.md) guide first.
Once you have a working setup and understand the concepts transfering your NixOS configurations over is easy.
```
Once you have a working setup and understand the concepts transfering your NixOS configurations over is easy.
```
## Back up your existing configuration
Before you start, it is strongly recommended to back up your existing
configuration in any form you see fit. If you use version control to manage
your configuration changes, it is also a good idea to follow the migration
guide in a separte branch until everything works as expected.
configuration in any form you see fit. If you use version control to manage your
configuration changes, it is also a good idea to follow the migration guide in a
separte branch until everything works as expected.
## Starting Point
We assume you are already using NixOS flakes to manage your configuration. If
not, migrate to a flake-based setup following the official [NixOS
documentation](https://nix.dev/manual/nix/2.25/command-ref/new-cli/nix3-flake.html).
not, migrate to a flake-based setup following the official
[NixOS documentation](https://nix.dev/manual/nix/2.25/command-ref/new-cli/nix3-flake.html).
The snippet below shows a common Nix flake. For this example we will assume you
have have two hosts: **berlin** and **cologne**.
@@ -67,9 +69,9 @@ output parameters.
+ outputs = { self, nixpkgs, clan-core }:
```
The existing `nixosConfigurations` output of your flake will be created by
clan. In addition, a new `clanInternals` output will be added. Since both of
these are provided by the output of `clan-core.lib.clan`, a common syntax is to use a
The existing `nixosConfigurations` output of your flake will be created by clan.
In addition, a new `clanInternals` output will be added. Since both of these are
provided by the output of `clan-core.lib.clan`, a common syntax is to use a
`let...in` statement to create your clan and access it's parameters in the flake
outputs.
@@ -112,10 +114,9 @@ For the provide flake example, your flake should now look like this:
✅ Et voilà! Your existing hosts are now part of a clan.
Existing Nix tooling
should still work as normal. To check that you didn't make any errors, run `nix
flake show` and verify both hosts are still recognized as if nothing had
changed. You should also see the new `clan` output.
Existing Nix tooling should still work as normal. To check that you didn't make
any errors, run `nix flake show` and verify both hosts are still recognized as
if nothing had changed. You should also see the new `clan` output.
```
nix flake show
@@ -171,7 +172,8 @@ Clan needs to know where it can reach your hosts. For testing purpose set
}
```
See our guide on for properly [configuring machines networking](../networking.md)
See our guide on for properly
[configuring machines networking](../networking.md)
## Next Steps

View File

@@ -1,15 +1,27 @@
# USB Installer Image for Physical Machines
To install Clan on physical machines, you need to use our custom installer image. This is necessary for proper installation and operation.
To install Clan on physical machines, you need to use our custom installer
image. This is necessary for proper installation and operation.
!!! note "Deploying to a Virtual Machine?"
If you're deploying to a virtual machine (VM), you can skip this section and go directly to the [Deploy Virtual Machine](./hardware-report-virtual.md) step. In this scenario, we automatically use [nixos-anywhere](https://github.com/nix-community/nixos-anywhere) to replace the kernel during runtime.
!!! note "Deploying to a Virtual Machine?" If you're deploying to a virtual
machine (VM), you can skip this section and go directly to the
[Deploy Virtual Machine](./hardware-report-virtual.md) step. In this scenario,
we automatically use
[nixos-anywhere](https://github.com/nix-community/nixos-anywhere) to replace the
kernel during runtime.
??? info "Why nixos-anywhere Doesn't Work on Physical Hardware?"
nixos-anywhere relies on [kexec](https://wiki.archlinux.org/title/Kexec) to replace the running kernel with our custom one. This method often has compatibility issues with real hardware, especially systems with dedicated graphics cards like laptops and servers, leading to crashes and black screens.
??? info "Why nixos-anywhere Doesn't Work on Physical Hardware?" nixos-anywhere
relies on [kexec](https://wiki.archlinux.org/title/Kexec) to replace the running
kernel with our custom one. This method often has compatibility issues with real
hardware, especially systems with dedicated graphics cards like laptops and
servers, leading to crashes and black screens.
??? info "Reasons for a Custom Install Image"
Our custom install images are built to include essential tools like [nixos-facter](https://github.com/nix-community/nixos-facter) and support for [ZFS](https://wiki.archlinux.org/title/ZFS). They're also optimized to run on systems with as little as 1 GB of RAM, ensuring efficient performance even on lower-end hardware.
??? info "Reasons for a Custom Install Image" Our custom install images are
built to include essential tools like
[nixos-facter](https://github.com/nix-community/nixos-facter) and support for
[ZFS](https://wiki.archlinux.org/title/ZFS). They're also optimized to run on
systems with as little as 1 GB of RAM, ensuring efficient performance even on
lower-end hardware.
## Prerequisites
@@ -22,23 +34,24 @@ To install Clan on physical machines, you need to use our custom installer image
2. Identify your flash drive with `lsblk`:
```shellSession
lsblk
```
```shellSession
lsblk
```
```{.shellSession hl_lines="2" .no-copy}
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sdb 8:0 1 117,2G 0 disk
└─sdb1 8:1 1 117,2G 0 part /run/media/qubasa/INTENSO
nvme0n1 259:0 0 1,8T 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot
└─nvme0n1p2 259:2 0 1,8T 0 part
└─luks-f7600028-9d83-4967-84bc-dd2f498bc486 254:0 0 1,8T 0 crypt /nix/store
```
```{.shellSession hl_lines="2" .no-copy}
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sdb 8:0 1 117,2G 0 disk
└─sdb1 8:1 1 117,2G 0 part /run/media/qubasa/INTENSO
nvme0n1 259:0 0 1,8T 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot
└─nvme0n1p2 259:2 0 1,8T 0 part
└─luks-f7600028-9d83-4967-84bc-dd2f498bc486 254:0 0 1,8T 0 crypt /nix/store
```
!!! Info "In this case the USB device is `sdb`"
!!! Info "In this case the USB device is `sdb`"
3. Ensure all partitions on the drive are unmounted. Replace `sdb1` in the command below with your device identifier (like `sdc1`, etc.):
3. Ensure all partitions on the drive are unmounted. Replace `sdb1` in the
command below with your device identifier (like `sdc1`, etc.):
```shellSession
sudo umount /dev/sdb1
@@ -46,117 +59,122 @@ sudo umount /dev/sdb1
## Installer
=== "**Linux OS**"
**Create a Custom Installer**
=== "**Linux OS**" **Create a Custom Installer**
We recommend to build your own installer because of the following reasons:
````
We recommend to build your own installer because of the following reasons:
- Include your ssh public keys into the image that allows passwordless ssh connection later on.
- Set your preferred language and keymap
- Include your ssh public keys into the image that allows passwordless ssh connection later on.
- Set your preferred language and keymap
```bash
clan flash write --flake https://git.clan.lol/clan/clan-core/archive/main.tar.gz \
--ssh-pubkey $HOME/.ssh/id_ed25519.pub \
--keymap us \
--language en_US.UTF-8 \
--disk main /dev/sd<X> \
flash-installer
```bash
clan flash write --flake https://git.clan.lol/clan/clan-core/archive/main.tar.gz \
--ssh-pubkey $HOME/.ssh/id_ed25519.pub \
--keymap us \
--language en_US.UTF-8 \
--disk main /dev/sd<X> \
flash-installer
```
!!! Note
Replace `$HOME/.ssh/id_ed25519.pub` with a path to your SSH public key.
Replace `/dev/sd<X>` with the drive path you want to flash
!!! Danger "Specifying the wrong device can lead to unrecoverable data loss."
The `clan flash` utility will erase the disk. Make sure to specify the correct device
- **SSH-Pubkey Option**
To add an ssh public key into the installer image append the option:
```
!!! Note
Replace `$HOME/.ssh/id_ed25519.pub` with a path to your SSH public key.
Replace `/dev/sd<X>` with the drive path you want to flash
--ssh-pubkey <pubkey_path>
```
If you do not have an ssh key yet, you can generate one with `ssh-keygen -t ed25519` command.
This ssh key will be installed into the root user.
!!! Danger "Specifying the wrong device can lead to unrecoverable data loss."
- **Connect to the installer**
The `clan flash` utility will erase the disk. Make sure to specify the correct device
On boot, the installer will display on-screen the IP address it received from the network.
If you need to configure Wi-Fi first, refer to the next section.
If Multicast-DNS (Avahi) is enabled on your own machine, you can also access the installer using the `flash-installer.local` address.
- **SSH-Pubkey Option**
- **List Keymaps**
To add an ssh public key into the installer image append the option:
```
--ssh-pubkey <pubkey_path>
```
If you do not have an ssh key yet, you can generate one with `ssh-keygen -t ed25519` command.
This ssh key will be installed into the root user.
- **Connect to the installer**
On boot, the installer will display on-screen the IP address it received from the network.
If you need to configure Wi-Fi first, refer to the next section.
If Multicast-DNS (Avahi) is enabled on your own machine, you can also access the installer using the `flash-installer.local` address.
- **List Keymaps**
You can get a list of all keymaps with the following command:
```
clan flash list keymaps
```
- **List Languages**
You can get a list of all languages with the following command:
```
clan flash list languages
```
=== "**Other OS**"
**Download Generic Installer**
For x86_64:
```shellSession
wget https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-installer-x86_64-linux.iso
You can get a list of all keymaps with the following command:
```
clan flash list keymaps
```
For generic arm64 / aarch64 (probably does not work on raspberry pi...)
- **List Languages**
```shellSession
wget https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-installer-aarch64-linux.iso
You can get a list of all languages with the following command:
```
!!! Note
If you don't have `wget` installed, you can use `curl --progress-bar -OL <url>` instead.
## Flash the Installer to the USB Drive
!!! Danger "Specifying the wrong device can lead to unrecoverable data loss."
The `dd` utility will erase the disk. Make sure to specify the correct device (`of=...`)
For example if the USB device is `sdb` use `of=/dev/sdb` (on macOS it will look more like /dev/disk1)
On Linux, you can use the `lsblk` utility to identify the correct disko
```
lsblk --output NAME,ID-LINK,FSTYPE,SIZE,MOUNTPOINT
clan flash list languages
```
````
On macos use `diskutil`:
=== "**Other OS**" **Download Generic Installer**
```
diskutil list
```
````
For x86_64:
Use the `dd` utility to write the NixOS installer image to your USB drive.
Replace `/dev/sd<X>` with your external drive from above.
```shellSession
wget https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-installer-x86_64-linux.iso
```
```shellSession
sudo dd bs=4M conv=fsync status=progress if=./nixos-installer-x86_64-linux.iso of=/dev/sd<X>
```
For generic arm64 / aarch64 (probably does not work on raspberry pi...)
- **Connect to the installer
```shellSession
wget https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-installer-aarch64-linux.iso
```
On boot, the installer will display on-screen the IP address it received from the network.
If you need to configure Wi-Fi first, refer to the next section.
If Multicast-DNS (Avahi) is enabled on your own machine, you can also access the installer using the `nixos-installer.local` address.
!!! Note
If you don't have `wget` installed, you can use `curl --progress-bar -OL <url>` instead.
## Flash the Installer to the USB Drive
!!! Danger "Specifying the wrong device can lead to unrecoverable data loss."
The `dd` utility will erase the disk. Make sure to specify the correct device (`of=...`)
For example if the USB device is `sdb` use `of=/dev/sdb` (on macOS it will look more like /dev/disk1)
On Linux, you can use the `lsblk` utility to identify the correct disko
```
lsblk --output NAME,ID-LINK,FSTYPE,SIZE,MOUNTPOINT
```
On macos use `diskutil`:
```
diskutil list
```
Use the `dd` utility to write the NixOS installer image to your USB drive.
Replace `/dev/sd<X>` with your external drive from above.
```shellSession
sudo dd bs=4M conv=fsync status=progress if=./nixos-installer-x86_64-linux.iso of=/dev/sd<X>
```
- **Connect to the installer
On boot, the installer will display on-screen the IP address it received from the network.
If you need to configure Wi-Fi first, refer to the next section.
If Multicast-DNS (Avahi) is enabled on your own machine, you can also access the installer using the `nixos-installer.local` address.
````
## Boot From USB Stick
- To use, boot from the Clan USB drive with **secure boot turned off**. For step by step instructions go to [Disabling Secure Boot](../../guides/secure-boot.md)
- To use, boot from the Clan USB drive with **secure boot turned off**. For step
by step instructions go to
[Disabling Secure Boot](../../guides/secure-boot.md)
## (Optional) Connect to Wifi Manually
If you don't have access via LAN the Installer offers support for connecting via Wifi.
If you don't have access via LAN the Installer offers support for connecting via
Wifi.
```shellSession
iwctl
@@ -197,7 +215,7 @@ IPv4 address 192.168.188.50 (Your new local ip)
Press ++ctrl+d++ to exit `IWD`.
!!! Important
Press ++ctrl+d++ **again** to update the displayed QR code and connection information.
!!! Important Press ++ctrl+d++ **again** to update the displayed QR code and
connection information.
You're all set up

View File

@@ -1,9 +1,13 @@
### Generate Facts and Vars
Typically, this step is handled automatically when a machine is deployed. However, to enable the use of `nix flake check` with your configuration, it must be completed manually beforehand.
Typically, this step is handled automatically when a machine is deployed.
However, to enable the use of `nix flake check` with your configuration, it must
be completed manually beforehand.
Currently, generating all the necessary facts requires two separate commands. This is due to the coexistence of two parallel secret management solutions:
the newer, recommended version (`clan vars`) and the older version (`clan facts`) that we are slowly phasing out.
Currently, generating all the necessary facts requires two separate commands.
This is due to the coexistence of two parallel secret management solutions: the
newer, recommended version (`clan vars`) and the older version (`clan facts`)
that we are slowly phasing out.
To generate both facts and vars, execute the following commands:
@@ -11,7 +15,6 @@ To generate both facts and vars, execute the following commands:
clan facts generate && clan vars generate
```
### Check Configuration
Validate your configuration by running:
@@ -20,9 +23,11 @@ Validate your configuration by running:
nix flake check
```
This command helps ensure that your system configuration is correct and free from errors.
This command helps ensure that your system configuration is correct and free
from errors.
!!! Tip
You can integrate this step into your [Continuous Integration](https://en.wikipedia.org/wiki/Continuous_integration) workflow to ensure that only valid Nix configurations are merged into your codebase.
```
You can integrate this step into your [Continuous Integration](https://en.wikipedia.org/wiki/Continuous_integration) workflow to ensure that only valid Nix configurations are merged into your codebase.
```

View File

@@ -1,22 +1,29 @@
# Installing a Physical Machine
Now that you have created a machine, added some services, and set up secrets, this guide will walk you through how to deploy it.
Now that you have created a machine, added some services, and set up secrets,
this guide will walk you through how to deploy it.
### Step 0. Prerequisites
- [x] RAM > 2GB
- [x] **Two Computers**: You need one computer that you're getting ready (we'll call this the Target Computer) and another one to set it up from (we'll call this the Setup Computer). Make sure both can talk to each other over the network using SSH.
- [x] **Machine configuration**: See our basic [adding and configuring machine guide](./add-machines.md)
- [x] **Initialized secrets**: See [secrets](../secrets.md) for how to initialize your secrets.
- [x] **Two Computers**: You need one computer that you're getting ready (we'll
call this the Target Computer) and another one to set it up from (we'll call
this the Setup Computer). Make sure both can talk to each other over the
network using SSH.
- [x] **Machine configuration**: See our basic
[adding and configuring machine guide](./add-machines.md)
- [x] **Initialized secrets**: See [secrets](../secrets.md) for how to
initialize your secrets.
- [x] **USB Flash Drive**: See [Clan Installer](./create-installer.md)
### Image Installer
This method makes use of the [image installers](./create-installer.md).
The installer will randomly generate a password and local addresses on boot, then run a SSH server with these preconfigured.
The installer shows its deployment relevant information in two formats, a text form, as well as a QR code.
The installer will randomly generate a password and local addresses on boot,
then run a SSH server with these preconfigured. The installer shows its
deployment relevant information in two formats, a text form, as well as a QR
code.
This is an example of the booted installer.
@@ -50,65 +57,70 @@ This is an example of the booted installer.
└─────────────────────────────────────────────────────────────────────────────────────┘
```
1. This is not an actual QR code, because it is displayed rather poorly on text sites.
This would be the actual content of this specific QR code prettified:
```json
{
"pass": "cheesy-capital-unwell",
"tor": "6evxy5yhzytwpnhc2vpscrbti3iktxdhpnf6yim6bbs25p4v6beemzyd.onion",
"addrs": [
"2001:9e8:347:ca00:21e:6ff:fe45:3c92"
]
}
```
1. This is not an actual QR code, because it is displayed rather poorly on text
sites. This would be the actual content of this specific QR code prettified:
To generate the actual QR code, that would be displayed use:
```shellSession
echo '{"pass":"cheesy-capital-unwell","tor":"6evxy5yhzytwpnhc2vpscrbti3iktxdhpnf6yim6bbs25p4v6beemzyd.onion","addrs":["2001:9e8:347:ca00:21e:6ff:fe45:3c92"]}' | nix run nixpkgs#qrencode -- -s 2 -m 2 -t utf8
```
2. The root password for the installer medium.
This password is autogenerated and meant to be easily typeable.
3. See how to connect the installer medium to wlan [here](./create-installer.md).
```json
{
"pass": "cheesy-capital-unwell",
"tor": "6evxy5yhzytwpnhc2vpscrbti3iktxdhpnf6yim6bbs25p4v6beemzyd.onion",
"addrs": [
"2001:9e8:347:ca00:21e:6ff:fe45:3c92"
]
}
```
!!!tip
For easy sharing of deployment information via QR code, we highly recommend using [KDE Connect](https://apps.kde.org/de/kdeconnect/).
To generate the actual QR code, that would be displayed use:
```shellSession
echo '{"pass":"cheesy-capital-unwell","tor":"6evxy5yhzytwpnhc2vpscrbti3iktxdhpnf6yim6bbs25p4v6beemzyd.onion","addrs":["2001:9e8:347:ca00:21e:6ff:fe45:3c92"]}' | nix run nixpkgs#qrencode -- -s 2 -m 2 -t utf8
```
2. The root password for the installer medium. This password is autogenerated
and meant to be easily typeable.
3. See how to connect the installer medium to wlan
[here](./create-installer.md).
!!!tip For easy sharing of deployment information via QR code, we highly
recommend using [KDE Connect](https://apps.kde.org/de/kdeconnect/).
There are two ways to deploy your machine:
=== "Password" ### Generating a Hardware Report
=== "Password"
### Generating a Hardware Report
The following command will generate a hardware report with [nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back into your machine folder. The `--phases kexec` flag makes sure we are not yet formatting anything, instead if the target system is not a NixOS machine it will use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
````
The following command will generate a hardware report with [nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back into your machine folder. The `--phases kexec` flag makes sure we are not yet formatting anything, instead if the target system is not a NixOS machine it will use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
```terminal
clan machines install [MACHINE] \
--update-hardware-config nixos-facter \
--phases kexec \
--target-host root@192.168.178.169
```
```terminal
clan machines install [MACHINE] \
--update-hardware-config nixos-facter \
--phases kexec \
--target-host root@192.168.178.169
```
````
=== "QR Code"
### Generating a Hardware Report
=== "QR Code" ### Generating a Hardware Report
The following command will generate a hardware report with [nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back into your machine folder. The `--phases kexec` flag makes sure we are not yet formatting anything, instead if the target system is not a NixOS machine it will use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
````
The following command will generate a hardware report with [nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back into your machine folder. The `--phases kexec` flag makes sure we are not yet formatting anything, instead if the target system is not a NixOS machine it will use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
#### Using a JSON String or File Path
Copy the JSON string contained in the QR Code and provide its path or paste it directly:
```terminal
clan machines install [MACHINE] --json [JSON] \
--update-hardware-config nixos-facter \
--phases kexec
```
#### Using an Image Containing the QR Code
Provide the path to an image file containing the QR code displayed by the installer:
```terminal
clan machines install [MACHINE] --png [PATH] \
--update-hardware-config nixos-facter \
--phases kexec
```
#### Using a JSON String or File Path
Copy the JSON string contained in the QR Code and provide its path or paste it directly:
```terminal
clan machines install [MACHINE] --json [JSON] \
--update-hardware-config nixos-facter \
--phases kexec
```
#### Using an Image Containing the QR Code
Provide the path to an image file containing the QR code displayed by the installer:
```terminal
clan machines install [MACHINE] --png [PATH] \
--update-hardware-config nixos-facter \
--phases kexec
```
````
If you are using our template `[MACHINE]` would be `jon`

View File

@@ -1,23 +1,29 @@
# Generate a VM Hardware Report
Now that you have created a machine, added some services, and set up secrets, this guide will walk you through how to deploy it.
Now that you have created a machine, added some services, and set up secrets,
this guide will walk you through how to deploy it.
## Prerequisites
- [x] RAM > 2GB
- [x] **Two Computers**: You need one computer that you're getting ready (we'll call this the Target Computer) and another one to set it up from (we'll call this the Setup Computer). Make sure both can talk to each other over the network using SSH.
- [x] **Machine configuration**: See our basic [adding and configuring machine guide](./add-machines.md)
- [x] RAM > 2GB
- [x] **Two Computers**: You need one computer that you're getting ready (we'll
call this the Target Computer) and another one to set it up from (we'll call
this the Setup Computer). Make sure both can talk to each other over the
network using SSH.
- [x] **Machine configuration**: See our basic
[adding and configuring machine guide](./add-machines.md)
Clan supports any cloud machine if it is reachable via SSH and supports `kexec`.
??? tip "NixOS can cause strange issues when booting in certain cloud
environments." If on Linode: Make sure that the system uses "Direct Disk boot
kernel" (found in the configuration panel)
??? tip "NixOS can cause strange issues when booting in certain cloud environments."
If on Linode: Make sure that the system uses "Direct Disk boot kernel" (found in the configuration panel)
The following command will generate a hardware report with [nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back into your machine folder. The `--phases kexec` flag makes sure we are not yet formatting anything, instead if the target system is not a NixOS machine it will use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
The following command will generate a hardware report with
[nixos-facter](https://github.com/nix-community/nixos-facter) and writes it back
into your machine folder. The `--phases kexec` flag makes sure we are not yet
formatting anything, instead if the target system is not a NixOS machine it will
use [kexec](https://wiki.archlinux.org/title/Kexec) to switch to a NixOS kernel.
```terminal
clan machines install [MACHINE] \
@@ -26,5 +32,7 @@ clan machines install [MACHINE] \
--target-host myuser@<IP>
```
!!! Warning
After running the above command, be aware that the SSH login user changes from `myuser` to `root`. For subsequent SSH connections to the target machine, use `root` as the login user. This change occurs because the system switches to the NixOS kernel using `kexec`.
!!! Warning After running the above command, be aware that the SSH login user
changes from `myuser` to `root`. For subsequent SSH connections to the target
machine, use `root` as the login user. This change occurs because the system
switches to the NixOS kernel using `kexec`.

View File

@@ -1,66 +1,72 @@
# :material-clock-fast: Getting Started
Ready to manage your fleet of machines?
Ready to manage your fleet of machines?
We will create a declarative infrastructure using **clan**, **git**, and **nix flakes**.
We will create a declarative infrastructure using **clan**, **git**, and **nix
flakes**.
You'll finish with a centrally managed fleet, ready to import your existing NixOS configuration.
You'll finish with a centrally managed fleet, ready to import your existing
NixOS configuration.
## Prerequisites
Make sure you have the following:
* 💻 **Administration Machine**: Run the setup commands from this machine.
* 🛠️ **Nix**: The Nix package manager, installed on your administration machine.
- 💻 **Administration Machine**: Run the setup commands from this machine.
??? info "**How to install Nix (Linux / MacOS / NixOS)**"
- 🛠️ **Nix**: The Nix package manager, installed on your administration machine.
**On Linux or macOS:**
??? info "**How to install Nix (Linux / MacOS / NixOS)**"
1. Run the recommended installer:
```shellSession
curl --proto '=https' --tlsv1.2 -sSf -L [https://install.determinate.systems/nix](https://install.determinate.systems/nix) | sh -s -- install
```
````
**On Linux or macOS:**
2. After installation, ensure flakes are enabled by adding this line to `~/.config/nix/nix.conf`:
```
experimental-features = nix-command flakes
```
**On NixOS:**
Nix is already installed. You only need to enable flakes for your user in your `configuration.nix`:
```nix
{
nix.settings.experimental-features = [ "nix-command" "flakes" ];
}
1. Run the recommended installer:
```shellSession
curl --proto '=https' --tlsv1.2 -sSf -L [https://install.determinate.systems/nix](https://install.determinate.systems/nix) | sh -s -- install
```
Then, run `nixos-rebuild switch` to apply the changes.
* 🎯 **Target Machine(s)**: A remote machine with SSH, or your local machine (if NixOS).
2. After installation, ensure flakes are enabled by adding this line to `~/.config/nix/nix.conf`:
```
experimental-features = nix-command flakes
```
**On NixOS:**
Nix is already installed. You only need to enable flakes for your user in your `configuration.nix`:
```nix
{
nix.settings.experimental-features = [ "nix-command" "flakes" ];
}
```
Then, run `nixos-rebuild switch` to apply the changes.
````
- 🎯 **Target Machine(s)**: A remote machine with SSH, or your local machine (if
NixOS).
## Create a New Clan
1. Navigate to your desired directory:
```shellSession
cd <your-directory>
```
```shellSession
cd <your-directory>
```
2. Create a new clan flake:
**Note:** This creates a new directory in your current location
**Note:** This creates a new directory in your current location
```shellSession
nix run https://git.clan.lol/clan/clan-core/archive/main.tar.gz#clan-cli --refresh -- flakes create
```
```shellSession
nix run https://git.clan.lol/clan/clan-core/archive/main.tar.gz#clan-cli --refresh -- flakes create
```
3. Enter a **name** in the prompt:
```terminalSession
Enter a name for the new clan: my-clan
```
```terminalSession
Enter a name for the new clan: my-clan
```
## Project Structure
@@ -75,11 +81,11 @@ my-clan/
└── sops/
```
!!! note "Templates"
This is the structure for the `default` template.
Use `clan templates list` and `clan templates --help` for available templates & more. Keep in mind that the exact files may change as templates evolve.
!!! note "Templates" This is the structure for the `default` template.
```
Use `clan templates list` and `clan templates --help` for available templates & more. Keep in mind that the exact files may change as templates evolve.
```
## Activate the Environment
@@ -91,24 +97,29 @@ cd my-clan
Now, activate the environment using one of the following methods.
=== "Automatic (direnv, recommended)"
**Prerequisite**: You must have [nix-direnv](https://github.com/nix-community/nix-direnv) installed.
=== "Automatic (direnv, recommended)" **Prerequisite**: You must have
[nix-direnv](https://github.com/nix-community/nix-direnv) installed.
Run `direnv allow` to automatically load the environment whenever you enter this directory.
```shellSession
direnv allow
```
````
Run `direnv allow` to automatically load the environment whenever you enter this directory.
```shellSession
direnv allow
```
````
=== "Manual (nix develop)"
Run nix develop to load the environment for your current shell session.
=== "Manual (nix develop)" Run nix develop to load the environment for your
current shell session.
```shellSession
nix develop
```
````
```shellSession
nix develop
```
````
## Verify the Setup
Once your environment is active, verify that the clan command is available by running:
Once your environment is active, verify that the clan command is available by
running:
```shellSession
clan show
@@ -121,9 +132,10 @@ Name: __CHANGE_ME__
Description: None
```
This confirms your setup is working correctly.
This confirms your setup is working correctly.
You can now change the default name by editing the `meta.name` field in your `clan.nix` file.
You can now change the default name by editing the `meta.name` field in your
`clan.nix` file.
```{.nix title="clan.nix" hl_lines="3"}
{
@@ -134,4 +146,3 @@ You can now change the default name by editing the `meta.name` field in your `cl
# elided
}
```

View File

@@ -1,15 +1,12 @@
# Update Your Machines
# Update Machines
Clan CLI enables you to remotely update your machines over SSH. This requires
setting up a target address for each target machine.
The Clan command line interface enables you to update machines remotely over SSH.
In this guide we will teach you how to set a `targetHost` in Nix,
and how to define a remote builder for your machine closures.
### Setting `targetHost`
## Setting `targetHost`
Set the machines `targetHost` to the reachable IP address of the new machine.
This eliminates the need to specify `--target-host` in CLI commands.
In your Nix files, set the `targetHost` to the reachable IP address of your new
machine. This eliminates the need to specify `--target-host` with every command.
```{.nix title="clan.nix" hl_lines="9"}
{
@@ -30,39 +27,11 @@ inventory.machines = {
The use of `root@` in the target address implies SSH access as the `root` user.
Ensure that the root login is secured and only used when necessary.
## Multiple Target Hosts
You can now experiment with a new interface that allows you to define multiple `targetHost` addresses for different VPNs. Learn more and try it out in our [networking guide](../networking.md).
## Updating Machine Configurations
Execute the following command to update the specified machine:
```bash
clan machines update jon
```
All machines can be updated simultaneously by omitting the machine name:
```bash
clan machines update
```
---
## Advanced Usage
The following options are only needed for special cases, such as limited resources, mixed environments, or private flakes.
### Setting `buildHost`
If the machine does not have enough resources to run the NixOS **evaluation** or **build** itself,
it is also possible to specify a `buildHost` instead.
During an update, clan will ssh into the `buildHost` and run `nixos-rebuild` from there.
!!! Note
The `buildHost` option should be set directly within your machines Nix configuration, **not** under `inventory.machines`.
### Setting a Build Host
If the machine does not have enough resources to run the NixOS evaluation or
build itself, it is also possible to specify a build host instead. During an
update, the cli will ssh into the build host and run `nixos-rebuild` from there.
```{.nix hl_lines="5" .no-copy}
buildClan {
@@ -75,11 +44,7 @@ buildClan {
};
```
### Overriding configuration with CLI flags
`buildHost` / `targetHost`, and other network settings can be temporarily overridden for a single command:
For the full list of flags refer to the [Clan CLI](../../reference/cli/index.md)
You can also override the build host via the command line:
```bash
# Build on a remote host
@@ -89,16 +54,31 @@ clan machines update jon --build-host root@192.168.1.10
clan machines update jon --build-host local
```
!!! Note
Make sure the CPU architecture of the `buildHost` matches that of the `targetHost`
!!! Note Make sure that the CPU architecture is the same for the buildHost as
for the targetHost. Example: If you want to deploy to a macOS machine, your
architecture is an ARM64-Darwin, that means you need a second macOS machine to
build it.
For example, if deploying to a macOS machine with an ARM64-Darwin architecture, you need a second macOS machine with the same architecture to build it.
### Updating Machine Configurations
Execute the following command to update the specified machine:
```bash
clan machines update jon
```
You can also update all configured machines simultaneously by omitting the
machine name:
```bash
clan machines update
```
### Excluding a machine from `clan machine update`
To exclude machines from being updated when running `clan machines update` without any machines specified,
one can set the `clan.deployment.requireExplicitUpdate` option to true:
To exclude machines from being updated when running `clan machines update`
without any machines specified, one can set the
`clan.deployment.requireExplicitUpdate` option to true:
```{.nix hl_lines="5" .no-copy}
buildClan {
@@ -111,20 +91,22 @@ buildClan {
};
```
This is useful for machines that are not always online or are not part of the regular update cycle.
This is useful for machines that are not always online or are not part of the
regular update cycle.
### Uploading Flake Inputs
When updating remote machines, flake inputs are usually fetched by the build host.
However, if flake inputs require authentication (e.g., private repositories),
Use the `--upload-inputs` flag to upload all inputs from your local machine:
When updating remote machines, flake inputs are usually fetched by the build
host. However, if your flake inputs require authentication (e.g., private
repositories), you can use the `--upload-inputs` flag to upload all inputs from
your local machine:
```bash
clan machines update jon --upload-inputs
```
This is particularly useful when:
- The flake references private Git repositories
- Authentication credentials are only available on local machine
- Your flake references private Git repositories
- Authentication credentials are only available on your local machine
- The build host doesn't have access to certain network resources

View File

@@ -6,12 +6,14 @@ This guide explains how to manage macOS machines using Clan.
Currently, Clan supports the following features for macOS:
- `clan machines update` for existing [nix-darwin](https://github.com/nix-darwin/nix-darwin) installations
- `clan machines update` for existing
[nix-darwin](https://github.com/nix-darwin/nix-darwin) installations
- Support for [vars](../concepts/generators.md)
## Add Your Machine to Your Clan Flake
In this example, we'll name the machine `yourmachine`. Replace this with your preferred machine name.
In this example, we'll name the machine `yourmachine`. Replace this with your
preferred machine name.
=== "**If using clan-core.lib.clan**"
@@ -37,7 +39,8 @@ clan-core.lib.clan {
## Add a `configuration.nix` for Your Machine
Create the file `./machines/yourmachine/configuration.nix` with the following content (replace `yourmachine` with your chosen machine name):
Create the file `./machines/yourmachine/configuration.nix` with the following
content (replace `yourmachine` with your chosen machine name):
```nix
{
@@ -60,12 +63,13 @@ Replace `yourmachine` with your chosen machine name.
## Install Nix
Install Nix on your macOS machine using one of the methods described in the [nix-darwin prerequisites](https://github.com/nix-darwin/nix-darwin?tab=readme-ov-file#prerequisites).
Install Nix on your macOS machine using one of the methods described in the
[nix-darwin prerequisites](https://github.com/nix-darwin/nix-darwin?tab=readme-ov-file#prerequisites).
## Install nix-darwin
Upload your Clan flake to the macOS machine. Then, from within your flake directory, run:
Upload your Clan flake to the macOS machine. Then, from within your flake
directory, run:
```sh
sudo nix run nix-darwin/master#darwin-rebuild -- switch --flake .#yourmachine

View File

@@ -1,12 +1,12 @@
This guide provides detailed instructions for configuring
[ZeroTier VPN](https://zerotier.com) within Clan. Follow the
outlined steps to set up a machine as a VPN controller (`<CONTROLLER>`) and to
include a new machine into the VPN.
[ZeroTier VPN](https://zerotier.com) within Clan. Follow the outlined steps to
set up a machine as a VPN controller (`<CONTROLLER>`) and to include a new
machine into the VPN.
## Concept
By default all machines within one clan are connected via a chosen network technology.
By default all machines within one clan are connected via a chosen network
technology.
```{.no-copy}
Clan
@@ -15,19 +15,22 @@ Clan
Node B
```
This guide shows you how to configure `zerotier` through clan's `Inventory` System.
This guide shows you how to configure `zerotier` through clan's `Inventory`
System.
## The Controller
The controller is the initial entrypoint for new machines into the vpn.
It will sign the id's of new machines.
Once id's are signed, the controller's continuous operation is not essential.
A good controller choice is nevertheless a machine that can always be reached for updates - so that new peers can be added to the network.
The controller is the initial entrypoint for new machines into the vpn. It will
sign the id's of new machines. Once id's are signed, the controller's continuous
operation is not essential. A good controller choice is nevertheless a machine
that can always be reached for updates - so that new peers can be added to the
network.
For the purpose of this guide we have two machines:
- The `controller` machine, which will be the zerotier controller.
- The `new_machine` machine, which is the machine we want to add to the vpn network.
- The `new_machine` machine, which is the machine we want to add to the vpn
network.
## Configure the Service
@@ -99,12 +102,15 @@ The status should be "ONLINE":
## Further
Currently you can only use **Zerotier** as networking technology because this is the first network stack we aim to support.
In the future we plan to add additional network technologies like tinc, head/tailscale, yggdrassil and mycelium.
Currently you can only use **Zerotier** as networking technology because this is
the first network stack we aim to support. In the future we plan to add
additional network technologies like tinc, head/tailscale, yggdrassil and
mycelium.
We chose zerotier because in our tests it was a straight forwards solution to bootstrap.
It allows you to selfhost a controller and the controller doesn't need to be globally reachable.
Which made it a good fit for starting the project.
We chose zerotier because in our tests it was a straight forwards solution to
bootstrap. It allows you to selfhost a controller and the controller doesn't
need to be globally reachable. Which made it a good fit for starting the
project.
## Debugging
@@ -134,16 +140,20 @@ $ sudo zerotier-cli info
=== "with ZerotierIP"
```bash
$ sudo zerotier-members allow --member-ip <IP>
```
````
```bash
$ sudo zerotier-members allow --member-ip <IP>
```
Substitute `<IP>` with the ZeroTier IP obtained previously.
Substitute `<IP>` with the ZeroTier IP obtained previously.
````
=== "with ZerotierID"
```bash
$ sudo zerotier-members allow <ID>
```
````
```bash
$ sudo zerotier-members allow <ID>
```
Substitute `<ID>` with the ZeroTier ID obtained previously.
Substitute `<ID>` with the ZeroTier ID obtained previously.
````

View File

@@ -1,6 +1,8 @@
# Migrate disko config from `clanModules.disk-id`
If you previously bootstrapped a machine's disk using `clanModules.disk-id`, you should now migrate to a standalone, self-contained disko configuration. This ensures long-term stability and avoids reliance on dynamic values from Clan.
If you previously bootstrapped a machine's disk using `clanModules.disk-id`, you
should now migrate to a standalone, self-contained disko configuration. This
ensures long-term stability and avoids reliance on dynamic values from Clan.
If your `disko.nix` currently looks something like this:
@@ -49,8 +51,8 @@ Run the following command to retrieve the generated disk ID for your machine:
clan vars list <machineName>
```
Which should print the generated `disk-id/diskId` value in clear text
You should see output like:
Which should print the generated `disk-id/diskId` value in clear text You should
see output like:
```shellSession
disk-id/diskId: fcef30a749f8451d8f60c46e1ead726f
@@ -68,7 +70,8 @@ We are going to make three changes:
- Remove `let in, imports, {lib,clan-core,config, ...}:` to isolate the file.
- Replace `suffix` with the actual disk-id
- Move `disko.devices.disk.main.device` from `flake.nix` or `configuration.nix` into this file.
- Move `disko.devices.disk.main.device` from `flake.nix` or `configuration.nix`
into this file.
```{.nix title="disko.nix" hl_lines="7-9 11-14"}
{
@@ -93,6 +96,8 @@ We are going to make three changes:
}
```
These steps are only needed for existing configurations that depend on the `diskId` module.
These steps are only needed for existing configurations that depend on the
`diskId` module.
For newer machines clan offers simple *disk templates* via its [templates cli](../../reference/cli/templates.md)
For newer machines clan offers simple *disk templates* via its
[templates cli](../../reference/cli/templates.md)

View File

@@ -1,21 +1,23 @@
# Migrating from using `clanModules` to `clanServices`
**Audience**: This is a guide for **people using `clanModules`**.
If you are a **module author** and need to migrate your modules please consult our **new** [clanServices authoring guide](../../guides/services/community.md)
**Audience**: This is a guide for **people using `clanModules`**. If you are a
**module author** and need to migrate your modules please consult our **new**
[clanServices authoring guide](../../guides/services/community.md)
## What's Changing?
Clan is transitioning from the legacy `clanModules` system to the `clanServices` system. This guide will help you migrate your service definitions from the old format (`inventory.services`) to the new format (`inventory.instances`).
Clan is transitioning from the legacy `clanModules` system to the `clanServices`
system. This guide will help you migrate your service definitions from the old
format (`inventory.services`) to the new format (`inventory.instances`).
| Feature | `clanModules` (Old) | `clanServices` (New) |
| ---------------- | -------------------------- | ----------------------- |
| Module Class | `"nixos"` | `"clan.service"` |
| Inventory Key | `services` | `instances` |
| Module Source | Static | Composable via flakes |
| Custom Settings | Loosely structured | Strongly typed per-role |
| Migration Status | Deprecated (to be removed) | ✅ Preferred |
| Feature | `clanModules` (Old) | `clanServices` (New) | | ---------------- |
-------------------------- | ----------------------- | | Module Class |
`"nixos"` | `"clan.service"` | | Inventory Key | `services` | `instances` | |
Module Source | Static | Composable via flakes | | Custom Settings | Loosely
structured | Strongly typed per-role | | Migration Status | Deprecated (to be
removed) | ✅ Preferred |
---
______________________________________________________________________
## Before: Old `services` Definition
@@ -66,7 +68,7 @@ services = {
};
```
---
______________________________________________________________________
## ✅ After: New `instances` Definition with `clanServices`
@@ -151,13 +153,14 @@ instances = {
};
```
---
______________________________________________________________________
## Steps to Migrate
### Move `services` entries to `instances`
Check if a service that you use has been migrated [In our reference](../../reference/clanServices/index.md)
Check if a service that you use has been migrated
[In our reference](../../reference/clanServices/index.md)
In your inventory, move it from:
@@ -171,9 +174,10 @@ to:
instances = { ... };
```
Each nested service-instance-pair becomes a flat key, like `borgbackup.simple → borgbackup-simple`.
Each nested service-instance-pair becomes a flat key, like
`borgbackup.simple → borgbackup-simple`.
---
______________________________________________________________________
### Add `module.name` and `module.input`
@@ -194,15 +198,15 @@ inputs.clan-core.url = "github:clan/clan-core";
Then refer to it as `input = "clan-core"`.
---
______________________________________________________________________
### Move role and machine config under `roles`
In the new system:
* Use `roles.<role>.machines.<hostname>.settings` for machine-specific config.
* Use `roles.<role>.settings` for role-wide config.
* Remove: `.config` as a top-level attribute is removed.
- Use `roles.<role>.machines.<hostname>.settings` for machine-specific config.
- Use `roles.<role>.settings` for role-wide config.
- Remove: `.config` as a top-level attribute is removed.
Example:
@@ -214,7 +218,8 @@ roles.default.machines."test-inventory-machine".settings = {
### Important Type Changes
The new `instances` format uses **attribute sets** instead of **lists** for tags and machines:
The new `instances` format uses **attribute sets** instead of **lists** for tags
and machines:
```nix
# ❌ Old format (lists)
@@ -239,73 +244,70 @@ roles.moon.machines.eva = { };
roles.moon.machines.eve = { };
```
---
______________________________________________________________________
## Migration Status of clanModules
The following table shows the migration status of each deprecated clanModule:
| clanModule | Migration Status | Notes |
| clanModule | Migration Status | Notes |
|--------------------------|-------------------------------------------------------------------|------------------------------------------------------------------|
| `admin` | ✅ [Migrated](../../reference/clanServices/admin.md) | |
| `auto-upgrade` | ❌ Removed | |
| `borgbackup-static` | ❌ Removed | |
| `borgbackup` | ✅ [Migrated](../../reference/clanServices/borgbackup.md) | |
| `data-mesher` | ✅ [Migrated](../../reference/clanServices/data-mesher.md) | |
| `deltachat` | ❌ Removed | |
| `disk-id` | ❌ Removed | |
| `dyndns` | ✅ [Migrated](../../reference/clanServices/dyndns.md) | |
| `ergochat` | ❌ Removed | |
| `garage` | ✅ [Migrated](../../reference/clanServices/garage.md) | |
| `golem-provider` | ❌ Removed | |
| `heisenbridge` | ❌ Removed | |
| `importer` | ✅ [Migrated](../../reference/clanServices/importer.md) | |
| `iwd` | ❌ Removed | Use [wifi service](../../reference/clanServices/wifi.md) instead |
| `localbackup` | ✅ [Migrated](../../reference/clanServices/localbackup.md) | |
| `localsend` | ❌ Removed | |
| `machine-id` | ✅ [Migrated](../../reference/clan.core/settings.md) | Now an [option](../../reference/clan.core/settings.md) |
| `matrix-synapse` | ✅ [Migrated](../../reference/clanServices/matrix-synapse.md) | |
| `moonlight` | ❌ Removed | |
| `mumble` | ❌ Removed | |
| `mycelium` | ✅ [Migrated](../../reference/clanServices/mycelium.md) | |
| `nginx` | ❌ Removed | |
| `packages` | ✅ [Migrated](../../reference/clanServices/packages.md) | |
| `postgresql` | ✅ [Migrated](../../reference/clan.core/settings.md) | Now an [option](../../reference/clan.core/settings.md) |
| `root-password` | ✅ [Migrated](../../reference/clanServices/users.md) | See [migration guide](../../reference/clanServices/users.md#migration-from-root-password-module) |
| `single-disk` | ❌ Removed | |
| `sshd` | ✅ [Migrated](../../reference/clanServices/sshd.md) | |
| `state-version` | ✅ [Migrated](../../reference/clan.core/settings.md) | Now an [option](../../reference/clan.core/settings.md) |
| `static-hosts` | ❌ Removed | |
| `sunshine` | ❌ Removed | |
| `syncthing-static-peers` | ❌ Removed | |
| `syncthing` | ✅ [Migrated](../../reference/clanServices/syncthing.md) | |
| `thelounge` | ❌ Removed | |
| `trusted-nix-caches` | ✅ [Migrated](../../reference/clanServices/trusted-nix-caches.md) | |
| `user-password` | ✅ [Migrated](../../reference/clanServices/users.md) | |
| `vaultwarden` | ❌ Removed | |
| `xfce` | ❌ Removed | |
| `zerotier-static-peers` | ❌ Removed | |
| `zerotier` | ✅ [Migrated](../../reference/clanServices/zerotier.md) | |
| `zt-tcp-relay` | ❌ Removed | |
| `admin` | ✅ [Migrated](../../reference/clanServices/admin.md) | | |
`auto-upgrade` | ❌ Removed | | | `borgbackup-static` | ❌ Removed | | |
`borgbackup` | ✅ [Migrated](../../reference/clanServices/borgbackup.md) | | |
`data-mesher` | ✅ [Migrated](../../reference/clanServices/data-mesher.md) | | |
`deltachat` | ❌ Removed | | | `disk-id` | ❌ Removed | | | `dyndns` |
[Being Migrated](https://git.clan.lol/clan/clan-core/pulls/4390) | | |
`ergochat` | ❌ Removed | | | `garage` | ✅
[Migrated](../../reference/clanServices/garage.md) | | | `golem-provider` | ❌
Removed | | | `heisenbridge` | ❌ Removed | | | `importer` | ✅
[Migrated](../../reference/clanServices/importer.md) | | | `iwd` | ❌ Removed |
Use [wifi service](../../reference/clanServices/wifi.md) instead | |
`localbackup` | ✅ [Migrated](../../reference/clanServices/localbackup.md) | | |
`localsend` | ❌ Removed | | | `machine-id` | ❌ Removed | Now an
[option](../../reference/clan.core/settings.md) | | `matrix-synapse` | ✅
[Migrated](../../reference/clanServices/matrix-synapse.md) | | | `moonlight` | ❌
Removed | | | `mumble` | ❌ Removed | | | `mycelium` | ✅
[Migrated](../../reference/clanServices/mycelium.md) | | | `nginx` | ❌ Removed |
| | `packages` | ✅ [Migrated](../../reference/clanServices/packages.md) | | |
`postgresql` | ❌ Removed | Now an
[option](../../reference/clan.core/settings.md) | | `root-password` | ✅
[Migrated](../../reference/clanServices/users.md) | See
[migration guide](../../reference/clanServices/users.md#migration-from-root-password-module)
| | `single-disk` | ❌ Removed | | | `sshd` | ✅
[Migrated](../../reference/clanServices/sshd.md) | | | `state-version` | ✅
[Migrated](../../reference/clanServices/state-version.md) | | | `static-hosts` |
❌ Removed | | | `sunshine` | ❌ Removed | | | `syncthing-static-peers` | ❌
Removed | | | `syncthing` | ✅
[Migrated](../../reference/clanServices/syncthing.md) | | | `thelounge` | ❌
Removed | | | `trusted-nix-caches` | ✅
[Migrated](../../reference/clanServices/trusted-nix-caches.md) | | |
`user-password` | ✅ [Migrated](../../reference/clanServices/users.md) | | |
`vaultwarden` | ❌ Removed | | | `xfce` | ❌ Removed | | | `zerotier-static-peers`
| ❌ Removed | | | `zerotier` | ✅
[Migrated](../../reference/clanServices/zerotier.md) | | | `zt-tcp-relay` | ❌
Removed | |
---
______________________________________________________________________
!!! Warning
* Old `clanModules` (`class = "nixos"`) are deprecated and will be removed in the near future.
* `inventory.services` is no longer recommended; use `inventory.instances` instead.
* Module authors should begin exporting service modules under the `clan.modules` attribute of their flake.
!!! Warning * Old `clanModules` (`class = "nixos"`) are deprecated and will be
removed in the near future. * `inventory.services` is no longer recommended; use
`inventory.instances` instead. * Module authors should begin exporting service
modules under the `clan.modules` attribute of their flake.
## Troubleshooting Common Migration Errors
### Error: "not of type `attribute set of (submodule)`"
This error occurs when using lists instead of attribute sets for tags or machines:
This error occurs when using lists instead of attribute sets for tags or
machines:
```
error: A definition for option `flake.clan.inventory.instances.borgbackup-blob64.roles.client.tags' is not of type `attribute set of (submodule)'.
```
**Solution**: Convert lists to attribute sets as shown in the "Important Type Changes" section above.
**Solution**: Convert lists to attribute sets as shown in the "Important Type
Changes" section above.
### Error: "unsupported attribute `module`"
@@ -315,7 +317,8 @@ This error indicates the module structure is incorrect:
error: Module ':anon-4:anon-1' has an unsupported attribute `module'.
```
**Solution**: Ensure the `module` attribute has exactly two fields: `name` and `input`.
**Solution**: Ensure the `module` attribute has exactly two fields: `name` and
`input`.
### Error: "attribute 'pkgs' missing"
@@ -325,25 +328,30 @@ This suggests the instance configuration is trying to use imports incorrectly:
error: attribute 'pkgs' missing
```
**Solution**: Use the `module = { name = "..."; input = "..."; }` format instead of `imports`.
**Solution**: Use the `module = { name = "..."; input = "..."; }` format instead
of `imports`.
### Removed Features
The following features from the old `services` format are no longer supported in `instances`:
The following features from the old `services` format are no longer supported in
`instances`:
- Top-level `config` attribute (use `roles.<role>.settings` instead)
- Direct module imports (use the `module` declaration instead)
### extraModules Support
The `extraModules` attribute is still supported in the new instances format! The key change is how modules are specified:
The `extraModules` attribute is still supported in the new instances format! The
key change is how modules are specified:
**Old format (string paths relative to clan root):**
```nix
roles.client.extraModules = [ "nixosModules/borgbackup.nix" ];
```
**New format (NixOS modules):**
```nix
# Direct module reference
roles.client.extraModules = [ ../nixosModules/borgbackup.nix ];
@@ -359,11 +367,14 @@ roles.client.extraModules = [
];
```
The `extraModules` now expects actual **NixOS modules** rather than string paths. This provides better type checking and more flexibility in how modules are specified.
The `extraModules` now expects actual **NixOS modules** rather than string
paths. This provides better type checking and more flexibility in how modules
are specified.
**Alternative: Using @clan/importer**
For scenarios where you need to import modules with specific tag-based targeting, you can also use the dedicated `@clan/importer` service:
For scenarios where you need to import modules with specific tag-based
targeting, you can also use the dedicated `@clan/importer` service:
```nix
instances = {
@@ -378,6 +389,6 @@ instances = {
## Further reference
* [Inventory Concept](../../concepts/inventory.md)
* [Authoring a 'clan.service' module](../../guides/services/community.md)
* [ClanServices](../clanServices.md)
- [Inventory Concept](../../concepts/inventory.md)
- [Authoring a 'clan.service' module](../../guides/services/community.md)
- [ClanServices](../clanServices.md)

View File

@@ -1,16 +1,20 @@
# Migrate modules from `facts` to `vars`.
For a high level overview about `vars` see our [blog post](https://clan.lol/blog/vars/).
For a high level overview about `vars` see our
[blog post](https://clan.lol/blog/vars/).
This guide will help you migrate your modules that still use our [`facts`](../../guides/secrets.md) backend
to the [`vars`](../../concepts/generators.md) backend.
This guide will help you migrate your modules that still use our
[`facts`](../../guides/secrets.md) backend to the
[`vars`](../../concepts/generators.md) backend.
The `vars` [module](../../reference/clan.core/vars.md) and the clan [command](../../reference/cli/vars.md) work in tandem, they should ideally be kept in sync.
The `vars` [module](../../reference/clan.core/vars.md) and the clan
[command](../../reference/cli/vars.md) work in tandem, they should ideally be
kept in sync.
## Keep Existing Values
In order to keep existing values and move them from `facts` to `vars`
we will need to set the corresponding option in the vars module:
In order to keep existing values and move them from `facts` to `vars` we will
need to set the corresponding option in the vars module:
```
migrateFact = "fact-name"
@@ -19,10 +23,10 @@ migrateFact = "fact-name"
This will now check on `vars` generation if there is an existing `fact` with the
name already present and if that is the case will migrate it to `vars`.
Let us look at the mapping a little closer.
Suppose we have the following fact: `facts.services.vaultwarden.secret.admin`.
This would read as follows: The `vaultwarden` `fact` service has the `admin` secret.
In order to migrate this fact we would need to have the following `vars` configuration:
Let us look at the mapping a little closer. Suppose we have the following fact:
`facts.services.vaultwarden.secret.admin`. This would read as follows: The
`vaultwarden` `fact` service has the `admin` secret. In order to migrate this
fact we would need to have the following `vars` configuration:
```nix
vars.generators.vaultwarden = {
@@ -31,13 +35,14 @@ vars.generators.vaultwarden = {
};
```
And this would read as follows: The vaultwarden `vars` module generates the admin file.
And this would read as follows: The vaultwarden `vars` module generates the
admin file.
## Prompts
Because prompts can be a necessity for certain systems `vars` have a shorthand for defining them.
A prompt is a request for user input. Let us look how user input used to be handled in facts:
Because prompts can be a necessity for certain systems `vars` have a shorthand
for defining them. A prompt is a request for user input. Let us look how user
input used to be handled in facts:
```nix
facts.services.forgejo-api = {
@@ -46,7 +51,9 @@ facts.services.forgejo-api = {
generator.script = "cp $prompt_value > $secret/token";
};
```
To have analogous functionality in `vars`:
```nix
vars.generators.forgejo-api = {
prompts.token = {
@@ -55,8 +62,11 @@ vars.generators.forgejo-api = {
};
};
```
This does not only simplify prompting, it also now allows us to define multiple prompts in one generator.
A more analogous way to the `fact` method is available, in case the module author needs more flexibility with the prompt input:
This does not only simplify prompting, it also now allows us to define multiple
prompts in one generator. A more analogous way to the `fact` method is
available, in case the module author needs more flexibility with the prompt
input:
```nix
vars.generators.forgejo-api = {
@@ -92,8 +102,9 @@ facts.services.syncthing = {
};
```
This would be the corresponding `vars` module, which also will migrate existing
facts.
This would be the corresponding `vars` module, which also will migrate existing facts.
```nix
vars.generators.syncthing = {
migrateFact = "syncthing";
@@ -116,12 +127,15 @@ vars.generators.syncthing = {
'';
};
```
Most of the usage patterns stay the same, but `vars` have a more ergonomic interface.
There are not two different ways to define files anymore (public/secret).
Now files are defined under the `files` attribute and are secret by default.
Most of the usage patterns stay the same, but `vars` have a more ergonomic
interface. There are not two different ways to define files anymore
(public/secret). Now files are defined under the `files` attribute and are
secret by default.
## Happy Migration
We hope this gives you a clear path to start and finish your migration from `facts` to `vars`.
Please do not hesitate reaching out if something is still unclear - either through [matrix](https://matrix.to/#/#clan:clan.lol) or through our git [forge](https://git.clan.lol/clan/clan-core).
We hope this gives you a clear path to start and finish your migration from
`facts` to `vars`. Please do not hesitate reaching out if something is still
unclear - either through [matrix](https://matrix.to/#/#clan:clan.lol) or through
our git [forge](https://git.clan.lol/clan/clan-core).

View File

@@ -1,14 +1,19 @@
# Connecting to Your Machines
Clan provides automatic networking with fallback mechanisms to reliably connect to your machines.
Clan provides automatic networking with fallback mechanisms to reliably connect
to your machines.
## Option 1: Automatic Networking with Fallback (Recommended)
Clan's networking module automatically manages connections through various network technologies with intelligent fallback. When you run `clan ssh` or `clan machines update`, Clan tries each configured network by priority until one succeeds.
Clan's networking module automatically manages connections through various
network technologies with intelligent fallback. When you run `clan ssh` or
`clan machines update`, Clan tries each configured network by priority until one
succeeds.
### Basic Setup with Internet Service
For machines with public IPs or DNS names, use the `internet` service to configure direct SSH while keeping fallback options:
For machines with public IPs or DNS names, use the `internet` service to
configure direct SSH while keeping fallback options:
```{.nix title="flake.nix" hl_lines="7-10 14-16"}
{
@@ -76,6 +81,7 @@ For machines with public IPs or DNS names, use the `internet` service to configu
### How It Works
Clan automatically tries networks in order of priority:
1. Direct internet connections (if configured)
2. VPN networks (ZeroTier, Tailscale, etc.)
3. Tor hidden services
@@ -98,12 +104,14 @@ clan network overview
## Option 2: Manual targetHost (Bypasses Fallback!)
!!! warning
Setting `targetHost` directly **disables all automatic networking and fallback**. Only use this if you need complete control and don't want Clan's intelligent connection management.
!!! warning Setting `targetHost` directly **disables all automatic networking
and fallback**. Only use this if you need complete control and don't want Clan's
intelligent connection management.
### Using Inventory (For Static Addresses)
Use inventory-level `targetHost` when the address is **static** and doesn't depend on NixOS configuration:
Use inventory-level `targetHost` when the address is **static** and doesn't
depend on NixOS configuration:
```{.nix title="flake.nix" hl_lines="8"}
{
@@ -124,13 +132,15 @@ Use inventory-level `targetHost` when the address is **static** and doesn't depe
```
**When to use inventory-level:**
- Static IP addresses: `"root@192.168.1.100"`
- DNS names: `"user@server.example.com"`
- Any address that doesn't change based on machine configuration
### Using NixOS Configuration (For Dynamic Addresses)
Use machine-level `targetHost` when you need to **interpolate values from the NixOS configuration**:
Use machine-level `targetHost` when you need to **interpolate values from the
NixOS configuration**:
```{.nix title="flake.nix" hl_lines="7"}
{
@@ -151,23 +161,25 @@ Use machine-level `targetHost` when you need to **interpolate values from the Ni
```
**When to use machine-level (NixOS config):**
- Using hostName from config: `"root@${config.networking.hostName}.local"`
- Building from multiple config values: `"${config.users.users.deploy.name}@${config.networking.hostName}"`
- Building from multiple config values:
`"${config.users.users.deploy.name}@${config.networking.hostName}"`
- Any address that depends on evaluated NixOS configuration
!!! info "Key Difference"
**Inventory-level** (`deploy.targetHost`) is evaluated immediately and works with static strings.
**Machine-level** (`clan.core.networking.targetHost`) is evaluated after NixOS configuration and can access `config.*` values.
!!! info "Key Difference" **Inventory-level** (`deploy.targetHost`) is evaluated
immediately and works with static strings. **Machine-level**
(`clan.core.networking.targetHost`) is evaluated after NixOS configuration and
can access `config.*` values.
## Quick Decision Guide
| Scenario | Recommended Approach | Why |
|----------|---------------------|-----|
| Public servers | `internet` service | Keeps fallback options |
| Mixed infrastructure | Multiple networks | Automatic failover |
| Machines behind NAT | ZeroTier/Tor | NAT traversal with fallback |
| Testing/debugging | Manual targetHost | Full control, no magic |
| Single static machine | Manual targetHost | Simple, no overhead |
|----------|---------------------|-----| | Public servers | `internet` service |
Keeps fallback options | | Mixed infrastructure | Multiple networks | Automatic
failover | | Machines behind NAT | ZeroTier/Tor | NAT traversal with fallback |
| Testing/debugging | Manual targetHost | Full control, no magic | | Single
static machine | Manual targetHost | Simple, no overhead |
## Command-Line Override
@@ -181,4 +193,5 @@ clan machines update server --target-host root@backup-ip.com
clan ssh laptop --target-host user@10.0.0.5
```
Use this for debugging or emergency access when automatic networking isn't working.
Use this for debugging or emergency access when automatic networking isn't
working.

View File

@@ -1,24 +1,29 @@
This article provides an overview over the underlying secrets system which is used by [Vars](../concepts/generators.md).
Under most circumstances you should use [Vars](../concepts/generators.md) directly instead.
This article provides an overview over the underlying secrets system which is
used by [Vars](../concepts/generators.md). Under most circumstances you should
use [Vars](../concepts/generators.md) directly instead.
Consider using `clan secrets` only for managing admin users and groups, as well as a debugging tool.
Consider using `clan secrets` only for managing admin users and groups, as well
as a debugging tool.
Manually interacting with secrets via `clan secrets [set|remove]`, etc may break the integrity of your `Vars` state.
Manually interacting with secrets via `clan secrets [set|remove]`, etc may break
the integrity of your `Vars` state.
---
______________________________________________________________________
Clan enables encryption of secrets (such as passwords & keys) ensuring security and ease-of-use among users.
Clan enables encryption of secrets (such as passwords & keys) ensuring security
and ease-of-use among users.
By default, Clan uses the [sops](https://github.com/getsops/sops) format
and integrates with [sops-nix](https://github.com/Mic92/sops-nix) on NixOS machines.
Clan can also be configured to be used with other secret store [backends](../reference/clan.core/vars.md#clan.core.vars.settings.secretStore).
By default, Clan uses the [sops](https://github.com/getsops/sops) format and
integrates with [sops-nix](https://github.com/Mic92/sops-nix) on NixOS machines.
Clan can also be configured to be used with other secret store
[backends](../reference/clan.core/vars.md#clan.core.vars.settings.secretStore).
## Create Your Admin Keypair
To get started, you'll need to create **your admin keypair**.
!!! info
Don't worry — if you've already made one before, this step won't change or overwrite it.
!!! info Don't worry — if you've already made one before, this step won't change
or overwrite it.
```bash
clan secrets key generate
@@ -33,22 +38,23 @@ Generated age private key at '/home/joerg/.config/sops/age/keys.txt' for your us
Also add your age public key to the repository with 'clan secrets users add YOUR_USER age1wkth7uhpkl555g40t8hjsysr20drq286netu8zptw50lmqz7j95sw2t3l7' (replace YOUR_USER with your actual username)
```
!!! warning
Make sure to keep a safe backup of the private key you've just created.
If it's lost, you won't be able to get to your secrets anymore because they all need the admin key to be unlocked.
!!! warning Make sure to keep a safe backup of the private key you've just
created. If it's lost, you won't be able to get to your secrets anymore because
they all need the admin key to be unlocked.
If you already have an [age] secret key and want to use that instead, you can simply edit `~/.config/sops/age/keys.txt`:
If you already have an [age] secret key and want to use that instead, you can
simply edit `~/.config/sops/age/keys.txt`:
```title="~/.config/sops/age/keys.txt"
AGE-SECRET-KEY-13GWMK0KNNKXPTJ8KQ9LPSQZU7G3KU8LZDW474NX3D956GGVFAZRQTAE3F4
```
Alternatively, you can provide your [age] secret key as an environment variable `SOPS_AGE_KEY`, or in a different file
using `SOPS_AGE_KEY_FILE`.
For more information see the [SOPS] guide on [encrypting with age].
Alternatively, you can provide your [age] secret key as an environment variable
`SOPS_AGE_KEY`, or in a different file using `SOPS_AGE_KEY_FILE`. For more
information see the [SOPS] guide on [encrypting with age].
!!! note
It's safe to add any secrets created by the clan CLI and placed in your repository to version control systems like `git`.
!!! note It's safe to add any secrets created by the clan CLI and placed in your
repository to version control systems like `git`.
## Add Your Public Key(s)
@@ -56,7 +62,8 @@ For more information see the [SOPS] guide on [encrypting with age].
clan secrets users add $USER --age-key <your_public_key>
```
It's best to choose the same username as on your Setup/Admin Machine that you use to control the deployment with.
It's best to choose the same username as on your Setup/Admin Machine that you
use to control the deployment with.
Once run this will create the following files:
@@ -66,17 +73,21 @@ sops/
└── <your_username>/
└── key.json
```
If you followed the quickstart tutorial all necessary secrets are initialized at this point.
!!! note
You can add multiple age keys for a user by providing multiple `--age-key <your_public_key>` flags:
If you followed the quickstart tutorial all necessary secrets are initialized at
this point.
```console
clan secrets users add $USER \
--age-key <your_public_key_1> \
--age-key <your_public_key_2> \
...
```
!!! note You can add multiple age keys for a user by providing multiple
`--age-key <your_public_key>` flags:
````
```console
clan secrets users add $USER \
--age-key <your_public_key_1> \
--age-key <your_public_key_2> \
...
```
````
## Manage Your Public Key(s)
@@ -111,11 +122,6 @@ To remove a key from your user:
clan secrets users remove-key $USER --age-key <your_public_key>
```
[age]: https://github.com/FiloSottile/age
[age plugin]: https://github.com/FiloSottile/awesome-age?tab=readme-ov-file#plugins
[sops]: https://github.com/getsops/sops
[encrypting with age]: https://github.com/getsops/sops?tab=readme-ov-file#encrypting-using-age
## Adding a Secret
```shellSession
@@ -139,8 +145,10 @@ clan secrets list
A NixOS machine will automatically import all secrets that are encrypted for the
current machine. At runtime it will use the host key to decrypt all secrets into
an in-memory, non-persistent filesystem using [sops-nix](https://github.com/Mic92/sops-nix).
In your nixos configuration you can get a path to secrets like this `config.sops.secrets.<name>.path`. For example:
an in-memory, non-persistent filesystem using
[sops-nix](https://github.com/Mic92/sops-nix). In your nixos configuration you
can get a path to secrets like this `config.sops.secrets.<name>.path`. For
example:
```nix
{ config, ...}: {
@@ -155,7 +163,8 @@ In your nixos configuration you can get a path to secrets like this `config.sops
## Assigning Access
When using `clan secrets set <secret>` without arguments, secrets are encrypted for the key of the user named like your current $USER.
When using `clan secrets set <secret>` without arguments, secrets are encrypted
for the key of the user named like your current $USER.
To add machines/users to an existing secret use:
@@ -203,7 +212,8 @@ Here's how to get started:
clan secrets groups add-secret <group_name> <secret_name>
```
**TIP** To encrypt all secrets of a machine for a specific group, use the following NixOS configuration:
**TIP** To encrypt all secrets of a machine for a specific group, use the
following NixOS configuration:
```
{
@@ -213,7 +223,8 @@ Here's how to get started:
### Adding Machine Keys
New machines in Clan come with age keys stored in `./sops/machines/<machine_name>`. To list these machines:
New machines in Clan come with age keys stored in
`./sops/machines/<machine_name>`. To list these machines:
```bash
clan secrets machines list
@@ -233,24 +244,29 @@ To fetch an age key from an SSH host key:
### Migration: Importing existing sops-based keys / sops-nix
`clan secrets` stores each secret in a single file, whereas [sops](https://github.com/Mic92/sops-nix) commonly allows to put all secrets in a yaml or json document.
`clan secrets` stores each secret in a single file, whereas
[sops](https://github.com/Mic92/sops-nix) commonly allows to put all secrets in
a yaml or json document.
If you already happened to use sops-nix, you can migrate by using the `clan secrets import-sops` command by importing these files:
If you already happened to use sops-nix, you can migrate by using the
`clan secrets import-sops` command by importing these files:
```bash
% clan secrets import-sops --prefix matchbox- --group admins --machine matchbox nixos/matchbox/secrets/secrets.yaml
```
This will create secrets for each secret found in `nixos/matchbox/secrets/secrets.yaml` in a `./sops` folder of your repository.
Each member of the group `admins` in this case will be able to decrypt the secrets with their respective key.
Since our clan secret module will auto-import secrets that are encrypted for a particular nixos machine,
you can now remove `sops.secrets.<secrets> = { };` unless you need to specify more options for the secret like owner/group of the secret file.
This will create secrets for each secret found in
`nixos/matchbox/secrets/secrets.yaml` in a `./sops` folder of your repository.
Each member of the group `admins` in this case will be able to decrypt the
secrets with their respective key.
Since our clan secret module will auto-import secrets that are encrypted for a
particular nixos machine, you can now remove `sops.secrets.<secrets> = { };`
unless you need to specify more options for the secret like owner/group of the
secret file.
## Indepth Explanation
The secrets system conceptually knows two different entities:
- **Machine**: consumes secrets
@@ -258,33 +274,50 @@ The secrets system conceptually knows two different entities:
**A Users** Can add or revoke machines' access to secrets.
**A machine** Can decrypt secrets that where encrypted specifically for that machine.
**A machine** Can decrypt secrets that where encrypted specifically for that
machine.
!!! Danger
**Always make sure at least one _User_ has access to a secret**. Otherwise you could lock yourself out from accessing the secret.
!!! Danger **Always make sure at least one _User_ has access to a secret**.
Otherwise you could lock yourself out from accessing the secret.
### Inherited implications
By default clan uses [sops](https://github.com/getsops/sops) through [sops-nix](https://github.com/Mic92/sops-nix) for managing its secrets which inherits some implications that are important to understand:
By default clan uses [sops](https://github.com/getsops/sops) through
[sops-nix](https://github.com/Mic92/sops-nix) for managing its secrets which
inherits some implications that are important to understand:
- **Public/Private keys**: Entities are identified via their public keys. Each
Entity can use their respective private key to decrypt a secret.
- **Public/Private keys**: Entities are identified via their public keys. Each Entity can use their respective private key to decrypt a secret.
- **Public keys are stored**: All Public keys are stored inside the repository
- **Secrets are stored Encrypted**: secrets are stored inside the repository encrypted with the respective public keys
- **Secrets are deployed encrypted**: Fully encrypted secrets are deployed to machines at deployment time.
- **Secrets are decrypted by sops on-demand**: Each machine decrypts its secrets at runtime and stores them at an ephemeral location.
- **Machine key-pairs are auto-generated**: When a machine is created **no user-interaction is required** to setup public/private key-pairs.
- **secrets are re-encrypted**: In case machines, users or groups are modified secrets get re-encrypted on demand.
!!! Important
After revoking access to a secret you should also change the underlying secret. i.e. change the API key, or the password.
- **Secrets are stored Encrypted**: secrets are stored inside the repository
encrypted with the respective public keys
---
- **Secrets are deployed encrypted**: Fully encrypted secrets are deployed to
machines at deployment time.
- **Secrets are decrypted by sops on-demand**: Each machine decrypts its secrets
at runtime and stores them at an ephemeral location.
- **Machine key-pairs are auto-generated**: When a machine is created **no
user-interaction is required** to setup public/private key-pairs.
- **secrets are re-encrypted**: In case machines, users or groups are modified
secrets get re-encrypted on demand.
!!! Important After revoking access to a secret you should also change the
underlying secret. i.e. change the API key, or the password.
______________________________________________________________________
### Machine and user keys
The following diagrams illustrates how a user can provide a secret (i.e. a Password).
The following diagrams illustrates how a user can provide a secret (i.e. a
Password).
- By using the **Clan CLI** a user encrypts the password with both the **User public-key** and the **machine's public-key**
- By using the **Clan CLI** a user encrypts the password with both the **User
public-key** and the **machine's public-key**
- The *Machine* can decrypt the password with its private-key on demand.
@@ -305,14 +338,14 @@ Rel_R(secret, machine, "Decrypt", "", "machine privkey" )
@enduml
```
#### User groups
Here we illustrate how machine groups work.
Common use cases:
- **Shared Management**: Access among multiple users. I.e. a subset of secrets/machines that have two admins
- **Shared Management**: Access among multiple users. I.e. a subset of
secrets/machines that have two admins
```plantuml
@startuml
@@ -335,7 +368,7 @@ Rel_R(secret, machine, "Decrypt", "", "machine privkey" )
<!-- TODO: See also [Groups Reference](#groups-reference) -->
---
______________________________________________________________________
#### Machine groups
@@ -366,10 +399,9 @@ Rel(secret, c1, "Decrypt", "", "Both machine A or B can decrypt using their priv
<!-- TODO: See also [Groups Reference](#groups-reference) -->
See the [readme](https://github.com/Mic92/sops-nix) of sops-nix for more
examples.
[age]: https://github.com/FiloSottile/age
[encrypting with age]: https://github.com/getsops/sops?tab=readme-ov-file#encrypting-using-age
[sops]: https://github.com/getsops/sops

View File

@@ -1,4 +1,8 @@
At the moment, NixOS/Clan does not support [Secure Boot](https://wiki.gentoo.org/wiki/Secure_Boot). Therefore, you need to disable it in the BIOS. You can watch this [video guide](https://www.youtube.com/watch?v=BKVShiMUePc) or follow the instructions below:
At the moment, NixOS/Clan does not support
[Secure Boot](https://wiki.gentoo.org/wiki/Secure_Boot). Therefore, you need to
disable it in the BIOS. You can watch this
[video guide](https://www.youtube.com/watch?v=BKVShiMUePc) or follow the
instructions below:
## Insert the USB Stick
@@ -7,49 +11,46 @@ At the moment, NixOS/Clan does not support [Secure Boot](https://wiki.gentoo.org
## Access the UEFI/BIOS Menu
- Restart your computer.
- As your computer restarts, press the appropriate key to enter the UEFI/BIOS settings.
??? tip "The key depends on your laptop or motherboard manufacturer. Click to see a reference list:"
| Manufacturer | UEFI/BIOS Key(s) |
|--------------------|---------------------------|
| ASUS | `Del`, `F2` |
| MSI | `Del`, `F2` |
| Gigabyte | `Del`, `F2` |
| ASRock | `Del`, `F2` |
| Lenovo | `F1`, `F2`, `Enter` (alternatively `Fn + F2`) |
| HP | `Esc`, `F10` |
| Dell | `F2`, `Fn + F2`, `Esc` |
| Acer | `F2`, `Del` |
| Samsung | `F2`, `F10` |
| Toshiba | `F2`, `Esc` |
| Sony | `F2`, `Assist` button |
| Fujitsu | `F2` |
| Microsoft Surface | `Volume Up` + `Power` |
| IBM/Lenovo ThinkPad| `Enter`, `F1`, `F12` |
| Biostar | `Del` |
| Zotac | `Del`, `F2` |
| EVGA | `Del` |
| Origin PC | `F2`, `Delete` |
- As your computer restarts, press the appropriate key to enter the UEFI/BIOS
settings. ??? tip "The key depends on your laptop or motherboard manufacturer.
Click to see a reference list:"
!!! Note
Pressing the key quickly and repeatedly is sometimes necessary to access the UEFI/BIOS menu, as the window to enter this mode is brief.
| Manufacturer | UEFI/BIOS Key(s) |
|--------------------|---------------------------| | ASUS | `Del`, `F2` | |
MSI | `Del`, `F2` | | Gigabyte | `Del`, `F2` | | ASRock | `Del`, `F2` | |
Lenovo | `F1`, `F2`, `Enter` (alternatively `Fn + F2`) | | HP | `Esc`, `F10` |
| Dell | `F2`, `Fn + F2`, `Esc` | | Acer | `F2`, `Del` | | Samsung | `F2`,
`F10` | | Toshiba | `F2`, `Esc` | | Sony | `F2`, `Assist` button | | Fujitsu |
`F2` | | Microsoft Surface | `Volume Up` + `Power` | | IBM/Lenovo ThinkPad|
`Enter`, `F1`, `F12` | | Biostar | `Del` | | Zotac | `Del`, `F2` | | EVGA |
`Del` | | Origin PC | `F2`, `Delete` |
!!! Note Pressing the key quickly and repeatedly is sometimes necessary to
access the UEFI/BIOS menu, as the window to enter this mode is brief.
## Access Advanced Mode (Optional)
- If your UEFI/BIOS has a `Simple` or `Easy` mode interface, look for an option labeled `Advanced Mode` (often found in the lower right corner).
- Click on `Advanced Mode` to access more settings. This step is optional, as your boot settings might be available in the basic view.
- If your UEFI/BIOS has a `Simple` or `Easy` mode interface, look for an option
labeled `Advanced Mode` (often found in the lower right corner).
- Click on `Advanced Mode` to access more settings. This step is optional, as
your boot settings might be available in the basic view.
## Disable Secure Boot
- Locate the `Secure Boot` option in your UEFI/BIOS settings. This is typically found under a `Security` tab, `Boot` tab, or a similarly named section.
- Locate the `Secure Boot` option in your UEFI/BIOS settings. This is typically
found under a `Security` tab, `Boot` tab, or a similarly named section.
- Set the `Secure Boot` option to `Disabled`.
## Change Boot Order
- Find the option to adjust the boot order—often labeled `Boot Order`, `Boot Sequence`, or `Boot Priority`.
- Ensure that your USB device is set as the first boot option. This allows your computer to boot from the USB stick.
- Find the option to adjust the boot order—often labeled `Boot Order`,
`Boot Sequence`, or `Boot Priority`.
- Ensure that your USB device is set as the first boot option. This allows your
computer to boot from the USB stick.
## Save and Exit
- Save your changes before exiting the UEFI/BIOS menu. Look for a `Save & Exit` option or press the corresponding function key (often `F10`).
- Save your changes before exiting the UEFI/BIOS menu. Look for a `Save & Exit`
option or press the corresponding function key (often `F10`).
- Your computer should now restart and boot from the USB stick.

View File

@@ -2,18 +2,24 @@
## Service Module Specification
This section explains how to author a clan service module.
We discussed the initial architecture in [01-clan-service-modules](../../decisions/01-ClanModules.md) and decided to rework the format.
This section explains how to author a clan service module. We discussed the
initial architecture in
[01-clan-service-modules](../../decisions/01-ClanModules.md) and decided to
rework the format.
For the full specification and current state see: **[Service Author Reference](../../reference/clanServices/clan-service-author-interface.md)**
For the full specification and current state see:
**[Service Author Reference](../../reference/clanServices/clan-service-author-interface.md)**
### A Minimal module
First of all we need to register our module into the `clan.modules` attribute. Make sure to choose a unique name so the module doesn't have a name collision with any of the core modules.
First of all we need to register our module into the `clan.modules` attribute.
Make sure to choose a unique name so the module doesn't have a name collision
with any of the core modules.
While not required we recommend to prefix your module attribute name.
If you export the module from your flake, other people will be able to import it and use it within their clan.
If you export the module from your flake, other people will be able to import it
and use it within their clan.
i.e. `@hsjobeki/customNetworking`
@@ -35,8 +41,9 @@ outputs = inputs: inputs.flake-parts.lib.mkFlake { inherit inputs; } ({
The imported module file must fulfill at least the following requirements:
- Be an actual module. That means: Be either an attribute set; or a function that returns an attribute set.
- Required `_class = "clan.service"
- Be an actual module. That means: Be either an attribute set; or a function
that returns an attribute set.
- Required \`\_class = "clan.service"
- Required `manifest.name = "<name of the provided service>"`
```nix title="/service-modules/networking.nix"
@@ -47,19 +54,28 @@ The imported module file must fulfill at least the following requirements:
}
```
For more attributes see: **[Service Author Reference](../../reference/clanServices/clan-service-author-interface.md)**
For more attributes see:
**[Service Author Reference](../../reference/clanServices/clan-service-author-interface.md)**
### Adding functionality to the module
While the very minimal module is valid in itself it has no way of adding any machines to it, because it doesn't specify any roles.
While the very minimal module is valid in itself it has no way of adding any
machines to it, because it doesn't specify any roles.
The next logical step is to think about the interactions between the machines and define *roles* for them.
The next logical step is to think about the interactions between the machines
and define *roles* for them.
Here is a short guide with some conventions:
- [ ] If they all have the same relation to each other `peer` is commonly used. `peers` can often talk to each other directly.
- [ ] Often machines don't necessarily have direct relation to each other and there is one elevated machine in the middle classically know as `client-server`. `clients` are less likely to talk directly to each other than `peers`
- [ ] If your machines don't have any relation and/or interactions to each other you should reconsider if the desired functionality is really a multi-host service.
- [ ] If they all have the same relation to each other `peer` is commonly used.
`peers` can often talk to each other directly.
- [ ] Often machines don't necessarily have direct relation to each other and
there is one elevated machine in the middle classically know as
`client-server`. `clients` are less likely to talk directly to each other than
`peers`
- [ ] If your machines don't have any relation and/or interactions to each other
you should reconsider if the desired functionality is really a multi-host
service.
```nix title="/service-modules/networking.nix"
{
@@ -145,14 +161,16 @@ Next we need to define the settings and the behavior of these distinct roles.
## Using values from a NixOS machine inside the module
!!! Example "Experimental Status"
This feature is experimental and should be used with care.
!!! Example "Experimental Status" This feature is experimental and should be
used with care.
Sometimes a settings value depends on something within a machines `config`.
Since the `interface` is defined completely machine-agnostic this means values from a machine cannot be set in the traditional way.
Since the `interface` is defined completely machine-agnostic this means values
from a machine cannot be set in the traditional way.
The following example shows how to create a local instance of machine specific settings.
The following example shows how to create a local instance of machine specific
settings.
```nix title="someservice.nix"
{
@@ -174,11 +192,14 @@ The following example shows how to create a local instance of machine specific s
}
```
!!! Danger
`localSettings` are a local attribute. Other machines cannot access it.
If calling extendSettings is done that doesn't change the original `settings` this means if a different machine tries to access i.e `roles.client.settings` it would *NOT* contain your changes.
!!! Danger `localSettings` are a local attribute. Other machines cannot access
it. If calling extendSettings is done that doesn't change the original
`settings` this means if a different machine tries to access i.e
`roles.client.settings` it would *NOT* contain your changes.
Exposing the changed settings to other machines would come with a huge performance penalty, thats why we don't want to offer it.
```
Exposing the changed settings to other machines would come with a huge performance penalty, thats why we don't want to offer it.
```
## Passing `self` or `pkgs` to the module
@@ -189,11 +210,14 @@ In general we found the following two best practices:
1. Using `lib.importApply`
2. Using a wrapper module
Both have pros and cons. After all using `importApply` is the easier one, but might be more limiting sometimes.
Both have pros and cons. After all using `importApply` is the easier one, but
might be more limiting sometimes.
### Using `importApply`
Using [importApply](https://github.com/NixOS/nixpkgs/pull/230588) is essentially the same as `import file` followed by a function-application; but preserves the error location.
Using [importApply](https://github.com/NixOS/nixpkgs/pull/230588) is essentially
the same as `import file` followed by a function-application; but preserves the
error location.
Imagine your module looks like this
@@ -234,7 +258,8 @@ outputs = inputs: flake-parts.lib.mkFlake { inherit inputs; } ({self, lib, ...}:
}
```
Then wrap the module and forward the variable `self` from the outer context into the module
Then wrap the module and forward the variable `self` from the outer context into
the module
```nix title="flake.nix"
# ...
@@ -258,47 +283,9 @@ outputs = inputs: flake-parts.lib.mkFlake { inherit inputs; } ({self, lib, ...}:
The benefit of this approach is that downstream users can override the value of
`myClan` by using `mkForce` or other priority modifiers.
## Example: A machine-type service
______________________________________________________________________
Users often have different types of machines. These could be any classification
you like, for example "servers" and "desktops". Having such distictions, allows
reusing parts of your configuration that should be appplied to a class of
machines. Since this is such a common pattern, here is how to write such a
service.
For this example the we have to roles: `server` and `desktop`. Additionally, we
can use the `perMachine` section to add configuration to all machines regardless
of their type.
```nix title="machine-type.nix"
{
_class = "clan.service";
manifest.name = "machine-type";
roles.server.perInstance.nixosModule = ./server.nix;
roles.desktop.perInstance.nixosModule = ./desktop.nix;
perMachine.nixosModule = {
# Configuration for all machines (any type)
};
}
```
In the inventory we the assign machines to a type, e.g. by using tags
```nix title="flake.nix"
instnaces.machine-type = {
module.input = "self";
module.name = "@pinpox/machine-type";
roles.desktop.tags.desktop = { };
roles.server.tags.server = { };
};
```
---
## Further Reading
## Further
- [Reference Documentation for Service Authors](../../reference/clanServices/clan-service-author-interface.md)
- [Migration Guide from ClanModules to ClanServices](../../guides/migrations/migrate-inventory-services.md)

View File

@@ -1,27 +1,36 @@
---
______________________________________________________________________
hide:
- navigation
- toc
---
- navigation
- toc
______________________________________________________________________
# :material-home: What is Clan?
[Clan](https://clan.lol/) is a peer-to-peer computer management framework that
empowers you to **selfhost in a reliable and scalable way**.
Built on NixOS, Clan provides a **declarative interface for managing machines** with automated [secret management](./guides/secrets.md), easy [mesh VPN
connectivity](./guides/mesh-vpn.md), and [automated backups](./guides/backups.md).
Built on NixOS, Clan provides a **declarative interface for managing machines**
with automated [secret management](./guides/secrets.md), easy
[mesh VPN connectivity](./guides/mesh-vpn.md), and
[automated backups](./guides/backups.md).
Whether you're running a homelab or maintaining critical computing infrastructure,
Clan will help **reduce maintenance burden** by allowing a **git repository to define your whole network** of computers.
Whether you're running a homelab or maintaining critical computing
infrastructure, Clan will help **reduce maintenance burden** by allowing a **git
repository to define your whole network** of computers.
In combination with [sops-nix](https://github.com/Mic92/sops-nix), [nixos-anywhere](https://github.com/nix-community/nixos-anywhere) and [disko](https://github.com/nix-community/disko), Clan makes it possible to have **collaborative infrastructure**.
At the heart of Clan are [Clan Services](./reference/clanServices/index.md) - the core
concept that enables you to add functionality across multiple machines in your
network. While Clan ships with essential core services, you can [create custom
services](./guides/clanServices.md) tailored to your specific needs.
In combination with [sops-nix](https://github.com/Mic92/sops-nix),
[nixos-anywhere](https://github.com/nix-community/nixos-anywhere) and
[disko](https://github.com/nix-community/disko), Clan makes it possible to have
**collaborative infrastructure**.
At the heart of Clan are [Clan Services](./reference/clanServices/index.md) -
the core concept that enables you to add functionality across multiple machines
in your network. While Clan ships with essential core services, you can
[create custom services](./guides/clanServices.md) tailored to your specific
needs.
## :material-book: Guides
@@ -29,23 +38,23 @@ How-to Guides for achieving a certain goal or solving a specific issue.
<div class="grid cards" markdown>
- [:material-clock-fast: Getting Started](./guides/getting-started/index.md)
- [:material-clock-fast: Getting Started](./guides/getting-started/index.md)
---
______________________________________________________________________
Get started in less than 20 minutes!
Get started in less than 20 minutes!
- [macOS](./guides/macos.md)
- [macOS](./guides/macos.md)
---
______________________________________________________________________
Using Clan to manage your macOS machines
Using Clan to manage your macOS machines
- [Contribute](./guides/contributing/CONTRIBUTING.md)
- [Contribute](./guides/contributing/CONTRIBUTING.md)
---
______________________________________________________________________
How to set up a development environment
How to set up a development environment
</div>
@@ -55,21 +64,21 @@ Explore the underlying principles of Clan
<div class="grid cards" markdown>
- [Generators](./concepts/generators.md)
- [Generators](./concepts/generators.md)
---
______________________________________________________________________
Learn about Generators, our way to secret management
Learn about Generators, our way to secret management
- [Inventory](./concepts/inventory.md)
- [Inventory](./concepts/inventory.md)
---
______________________________________________________________________
Learn about the Inventory, a multi machine Nix interface
Learn about the Inventory, a multi machine Nix interface
</div>
## Blog
Visit our [Clan Blog](https://clan.lol/blog/) for the latest updates, tutorials, and community stories.
Visit our [Clan Blog](https://clan.lol/blog/) for the latest updates, tutorials,
and community stories.

View File

@@ -1,38 +1,49 @@
# :material-api: Glossary
## clan
Collection of machines interconnected in a network.
## clan-app
Graphical interface for managing clans. Simpler to use than the `clan-cli`.
## clan-cli
Command-line tool for managing clans.
## clanModule
Module that enables configuration via the inventory.
Legacy `clanModules` also support configuration outside the inventory.
Module that enables configuration via the inventory. Legacy `clanModules` also
support configuration outside the inventory.
## clanService
Service defined and managed through a clan configuration.
## clanURL
Flake URL-like syntax used to link to clans.
Required to connect the `url-open` application to the `clan-app`.
Flake URL-like syntax used to link to clans. Required to connect the `url-open`
application to the `clan-app`.
## facts *(deprecated)*
System for creating secrets and public files in a declarative way.
**Note:** Deprecated, use `vars` instead.
System for creating secrets and public files in a declarative way. **Note:**
Deprecated, use `vars` instead.
## inventory
JSON-like structure used to configure multiple machines.
## machine
A physical computer or virtual machine.
## role
Specific function assigned to a machine within a service.
Allows assignment of sane default configurations in multi-machine services.
Specific function assigned to a machine within a service. Allows assignment of
sane default configurations in multi-machine services.
## vars
System for creating secrets and public files in a declarative way.

View File

@@ -1,20 +1,23 @@
# :material-api: Overview
This section of the site provides an overview of available options and commands within the Clan Framework.
This section of the site provides an overview of available options and commands
within the Clan Framework.
---
______________________________________________________________________
- [Clan Configuration Option](/options) - for defining a Clan
- Learn how to use the [Clan CLI](./cli/index.md)
- Explore available [services](./clanServices/index.md)
- [NixOS Configuration Options](./clan.core/index.md) - Additional options avilable on a NixOS machine.
- [NixOS Configuration Options](./clan.core/index.md) - Additional options
avilable on a NixOS machine.
---
______________________________________________________________________
!!! Note
This documentation is always built for the main branch.
If you need documentation for a specific commit you can build it on your own
!!! Note This documentation is always built for the main branch. If you need
documentation for a specific commit you can build it on your own
```bash
nix build 'git+https://git.clan.lol/clan/clan-core?ref=0324f4d4b87d932163f351e53b23b0b17f2b5e15#docs'
```
````
```bash
nix build 'git+https://git.clan.lol/clan/clan-core?ref=0324f4d4b87d932163f351e53b23b0b17f2b5e15#docs'
```
````

20
flake.lock generated
View File

@@ -13,11 +13,11 @@
]
},
"locked": {
"lastModified": 1756695982,
"narHash": "sha256-dyLhOSDzxZtRgi5aj/OuaZJUsuvo+8sZ9CU/qieZ15c=",
"rev": "cc8f26e7e6c2dc985526ba59b286ae5a83168cdb",
"lastModified": 1756091210,
"narHash": "sha256-oEUEAZnLbNHi8ti4jY8x10yWcIkYoFc5XD+2hjmOS04=",
"rev": "eb831bca21476fa8f6df26cb39e076842634700d",
"type": "tarball",
"url": "https://git.clan.lol/api/v1/repos/clan/data-mesher/archive/cc8f26e7e6c2dc985526ba59b286ae5a83168cdb.tar.gz"
"url": "https://git.clan.lol/api/v1/repos/clan/data-mesher/archive/eb831bca21476fa8f6df26cb39e076842634700d.tar.gz"
},
"original": {
"type": "tarball",
@@ -99,11 +99,11 @@
},
"nixos-facter-modules": {
"locked": {
"lastModified": 1756491981,
"narHash": "sha256-lXyDAWPw/UngVtQfgQ8/nrubs2r+waGEYIba5UX62+k=",
"lastModified": 1756109073,
"narHash": "sha256-5pjFEziluVwJ0Z50h9laKfWbDluXuA5ada05xb/QiV4=",
"owner": "nix-community",
"repo": "nixos-facter-modules",
"rev": "c1b29520945d3e148cd96618c8a0d1f850965d8c",
"rev": "a1042c81126d9c9314c1eb1a7b89ab4d81b5dea7",
"type": "github"
},
"original": {
@@ -181,11 +181,11 @@
]
},
"locked": {
"lastModified": 1756662192,
"narHash": "sha256-F1oFfV51AE259I85av+MAia221XwMHCOtZCMcZLK2Jk=",
"lastModified": 1755934250,
"narHash": "sha256-CsDojnMgYsfshQw3t4zjRUkmMmUdZGthl16bXVWgRYU=",
"owner": "numtide",
"repo": "treefmt-nix",
"rev": "1aabc6c05ccbcbf4a635fb7a90400e44282f61c4",
"rev": "74e1a52d5bd9430312f8d1b8b0354c92c17453e5",
"type": "github"
},
"original": {

View File

@@ -7,6 +7,9 @@
treefmt.projectRootFile = "LICENSE.md";
treefmt.programs.shellcheck.enable = true;
treefmt.programs.mdformat.enable = true;
treefmt.programs.mdformat.settings.number = true;
treefmt.programs.mdformat.settings.wrap = 80;
treefmt.programs.mypy.enable = true;
treefmt.programs.nixfmt.enable = true;
treefmt.programs.nixfmt.package = pkgs.nixfmt-rfc-style;
@@ -37,8 +40,6 @@
"*/gnupg-home/*"
"*/sops/secrets/*"
"vars/*"
# prettier messes up our mkdocs flavoured markdown
"*.md"
"**/node_modules/*"
"**/.mypy_cache/*"
@@ -96,6 +97,8 @@
];
excludes = [
"*/asciinema-player/*"
# prettier messes up our mkdocs flavoured markdown
"*.md"
];
};
treefmt.programs.mypy.directories = {

View File

@@ -11,13 +11,15 @@ Such as:
## Structure
Similar to `nixpkgs/lib` this produces a recursive attribute set in a fixed-point.
Functions within lib can depend on each other to create new abstractions.
Similar to `nixpkgs/lib` this produces a recursive attribute set in a
fixed-point. Functions within lib can depend on each other to create new
abstractions.
### Conventions
Note: This is not consistently enforced yet.
If you start a new feature, or refactoring/touching existing ones, please help us to move towards the below illustrated.
Note: This is not consistently enforced yet. If you start a new feature, or
refactoring/touching existing ones, please help us to move towards the below
illustrated.
A single feature-set/module may be organized like this:
@@ -31,8 +33,8 @@ A single feature-set/module may be organized like this:
}
```
Every bigger feature should live in a subfolder with the feature name.
It should contain two files:
Every bigger feature should live in a subfolder with the feature name. It should
contain two files:
- `impl.nix`
- `test.nix`
@@ -41,6 +43,7 @@ It should contain two files:
```
Example filetree
```
```sh
.
├── default.nix
@@ -69,4 +72,5 @@ Example filetree
For testing we use [nix-unit](https://github.com/nix-community/nix-unit)
TODO: define a helper that automatically hooks up `tests` in `flake.legacyPackages` and a corresponding buildable `checks` attribute
TODO: define a helper that automatically hooks up `tests` in
`flake.legacyPackages` and a corresponding buildable `checks` attribute

View File

@@ -245,8 +245,6 @@ in
in
{ config, ... }:
{
staticModules = clan-core.clan.modules;
distributedServices = clanLib.inventory.mapInstances {
inherit (clanConfig) inventory exportsModule;
inherit flakeInputs directory;

View File

@@ -23,12 +23,6 @@ let
};
in
{
options.staticModules = lib.mkOption {
readOnly = true;
type = lib.types.raw;
apply = moduleSet: lib.mapAttrs (inspectModule "<clan-core>") moduleSet;
};
options.modulesPerSource = lib.mkOption {
# { sourceName :: { moduleName :: {} }}
readOnly = true;

View File

@@ -324,13 +324,14 @@ class Machine:
# Always run command with shell opts
command = f"set -eo pipefail; source /etc/profile; set -xu; {command}"
return subprocess.run(
proc = subprocess.run(
self.nsenter_command(command),
timeout=timeout,
check=False,
stdout=subprocess.PIPE,
text=True,
)
return proc
def nested(
self,

View File

@@ -180,15 +180,15 @@ class CompositeLogger(AbstractLogger):
stack.enter_context(logger.nested(message, attributes))
yield
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore
for logger in self.logger_list:
logger.info(*args, **kwargs)
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore
for logger in self.logger_list:
logger.warning(*args, **kwargs)
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore
for logger in self.logger_list:
logger.error(*args, **kwargs)
sys.exit(1)
@@ -245,13 +245,13 @@ class TerminalLogger(AbstractLogger):
toc = time.time()
self.log(f"(finished: {message}, in {toc - tic:.2f} seconds)")
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def print_serial_logs(self, enable: bool) -> None:
@@ -297,13 +297,13 @@ class XMLLogger(AbstractLogger):
self.xml.characters(message)
self.xml.endElement("line")
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def info(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def warning(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore[no-untyped-def]
def error(self, *args: Any, **kwargs: Any) -> None: # type: ignore
self.log(*args, **kwargs)
def log(self, message: str, attributes: dict[str, str] | None = None) -> None:

View File

@@ -8,10 +8,6 @@
{
imports = lib.optional (_class == "nixos") (
lib.mkIf config.clan.core.enableRecommendedDefaults {
# Enable automatic state-version generation.
clan.core.settings.state-version.enable = lib.mkDefault true;
# Use systemd during boot as well except:
# - systems with raids as this currently require manual configuration: https://github.com/NixOS/nixpkgs/issues/210210
# - for containers we currently rely on the `stage-2` init script that sets up our /etc
@@ -41,7 +37,6 @@
};
config = lib.mkIf config.clan.core.enableRecommendedDefaults {
# This disables the HTML manual and `nixos-help` command but leaves
# `man configuration.nix`
documentation.doc.enable = lib.mkDefault false;

View File

@@ -9,11 +9,28 @@
clan = {
directory = ./.;
machines.server = {
clan.core.settings.state-version.enable = true;
# Workaround until we can use nodes.server = { };
modules."@clan/importer" = ../../../../clanServices/importer;
inventory = {
machines.server = { };
instances.importer = {
module.name = "@clan/importer";
module.input = "self";
roles.default.tags.all = { };
roles.default.extraModules = [
{
clan.core.settings.state-version.enable = true;
}
];
};
};
};
# TODO: Broken. Use instead of importer after fixing.
# nodes.server = { };
# This is not an actual vm test, this is a workaround to
# generate the needed vars for the eval test.
testScript = "";

View File

@@ -16,10 +16,6 @@ from pathlib import Path
from tempfile import TemporaryDirectory
from typing import Any
# Constants
NODE_ID_LENGTH = 10
NETWORK_ID_LENGTH = 16
class ClanError(Exception):
pass
@@ -59,8 +55,8 @@ class Identity:
def node_id(self) -> str:
nid = self.public.split(":")[0]
if len(nid) != NODE_ID_LENGTH:
msg = f"node_id must be {NODE_ID_LENGTH} characters long, got {len(nid)}: {nid}"
if len(nid) != 10:
msg = f"node_id must be 10 characters long, got {len(nid)}: {nid}"
raise ClanError(msg)
return nid
@@ -177,8 +173,8 @@ def create_identity() -> Identity:
def compute_zerotier_ip(network_id: str, identity: Identity) -> ipaddress.IPv6Address:
if len(network_id) != NETWORK_ID_LENGTH:
msg = f"network_id must be {NETWORK_ID_LENGTH} characters long, got '{network_id}'"
if len(network_id) != 16:
msg = f"network_id must be 16 characters long, got '{network_id}'"
raise ClanError(msg)
nwid = int(network_id, 16)
node_id = int(identity.node_id(), 16)

5
nixosModules/clanCore/zerotier/genmoon.py Executable file → Normal file
View File

@@ -6,12 +6,9 @@ import sys
from pathlib import Path
from tempfile import NamedTemporaryFile
# Constants
REQUIRED_ARGS = 4
def main() -> None:
if len(sys.argv) != REQUIRED_ARGS:
if len(sys.argv) != 4:
print("Usage: genmoon.py <moon.json> <endpoint.json> <moons.d>")
sys.exit(1)
moon_json_path = sys.argv[1]

View File

@@ -12,14 +12,8 @@ let
(builtins.match "linux_[0-9]+_[0-9]+" name) != null
&& (builtins.tryEval kernelPackages).success
&& (
let
zfsPackage =
if isUnstable then
kernelPackages.zfs_unstable
else
kernelPackages.${pkgs.zfs.kernelModuleAttribute};
in
!(zfsPackage.meta.broken or false)
(!isUnstable && !kernelPackages.zfs.meta.broken)
|| (isUnstable && !kernelPackages.zfs_unstable.meta.broken)
)
) pkgs.linuxKernel.packages;
latestKernelPackage = lib.last (
@@ -30,5 +24,5 @@ let
in
{
# Note this might jump back and worth as kernel get added or removed.
boot.kernelPackages = lib.mkIf (lib.meta.availableOn pkgs.hostPlatform pkgs.zfs) latestKernelPackage;
boot.kernelPackages = latestKernelPackage;
}

View File

@@ -1,10 +1,13 @@
# User Firewall Module
This NixOS module provides network access restrictions for non-privileged users, ensuring they can only access local services and VPN interfaces while blocking direct internet access.
This NixOS module provides network access restrictions for non-privileged users,
ensuring they can only access local services and VPN interfaces while blocking
direct internet access.
## Overview
The `user-firewall` module implements firewall rules that:
- Block all outbound network traffic for normal (non-system) users by default
- Allow specific users to bypass restrictions (exemptUsers)
- Permit traffic on specific interfaces (like VPNs and localhost)
@@ -23,7 +26,9 @@ Add the module to your NixOS configuration:
}
```
The module is automatically enabled once imported. It will immediately start restricting network access for all normal users except those listed in `exemptUsers`.
The module is automatically enabled once imported. It will immediately start
restricting network access for all normal users except those listed in
`exemptUsers`.
## Configuration
@@ -63,19 +68,25 @@ The module is automatically enabled once imported. It will immediately start res
## How It Works
1. **User Classification**: The module automatically identifies all normal users (non-system users) and applies restrictions to those not in the `exemptUsers` list.
1. **User Classification**: The module automatically identifies all normal users
(non-system users) and applies restrictions to those not in the `exemptUsers`
list.
2. **Firewall Rules**:
- For iptables: Creates a custom chain `user-firewall-output` in the OUTPUT table
- For iptables: Creates a custom chain `user-firewall-output` in the OUTPUT
table
- For nftables: Creates a table `inet user-firewall` with an output chain
- Rules check outgoing packets and reject those from restricted users
3. **Interface Patterns**: Supports wildcards in interface names:
- `*` matches any characters (e.g., `wg*` matches `wg0`, `wg-home`)
## Default Allowed Interfaces
The module comes with sensible defaults for common VPN and overlay network interfaces:
The module comes with sensible defaults for common VPN and overlay network
interfaces:
- `lo` - Loopback (localhost access)
- `tun*` - OpenVPN, OpenConnect
@@ -95,7 +106,9 @@ The module comes with sensible defaults for common VPN and overlay network inter
## Use Cases
### 1. Public Kiosk Systems
Restrict users to only access local services:
```nix
{
networking.user-firewall = {
@@ -106,7 +119,9 @@ Restrict users to only access local services:
```
### 2. Corporate Workstations
Force all traffic through corporate VPN:
```nix
{
networking.user-firewall = {
@@ -132,15 +147,18 @@ nix build .#checks.x86_64-linux.user-firewall-nftables
### Check Active Rules
The output includes package counters for each firewall rule, that can help to debug connectivity issues.
The output includes package counters for each firewall rule, that can help to
debug connectivity issues.
For iptables:
```bash
sudo iptables -L user-firewall-output -n -v
sudo ip6tables -L user-firewall-output -n -v
```
For nftables:
```bash
sudo nft list table inet user-firewall
@@ -148,26 +166,33 @@ sudo nft list table inet user-firewall
sudo watch -n1 'nft list table inet user-firewall'
```
Check which rule your VPN traffic is hitting. If packets are being rejected, verify:
Check which rule your VPN traffic is hitting. If packets are being rejected,
verify:
1. Your VPN interface name matches the patterns in `allowedInterfaces`
2. Your user is listed in `exemptUsers` if needed
To see your current network interfaces:
```bash
ip link show | grep -E '^[0-9]+:'
```
### Common Issues
1. **Service Connection Failures**: If local services fail to connect, ensure `lo` is in `allowedInterfaces`.
1. **Service Connection Failures**: If local services fail to connect, ensure
`lo` is in `allowedInterfaces`.
2. **VPN Not Working**: Check that your VPN interface name matches the patterns in `allowedInterfaces`. You can find your interface name with `ip link show`.
2. **VPN Not Working**: Check that your VPN interface name matches the patterns
in `allowedInterfaces`. You can find your interface name with `ip link show`.
3. **User Still Has Access**: Verify the user is a normal user (not a system user) and not in `exemptUsers`.
3. **User Still Has Access**: Verify the user is a normal user (not a system
user) and not in `exemptUsers`.
## Security Considerations
- This module provides defense in depth but should not be the only security measure
- This module provides defense in depth but should not be the only security
measure
- System users (like `nginx`, `systemd-*`) are not restricted
- Root user always has full network access
- Restrictions apply at the packet filter level, not application level

View File

@@ -4,7 +4,8 @@ A powerful application that allows users to create and manage their own Clans.
## Getting Started
Enter the `pkgs/clan-app` directory and allow [direnv] to load the `clan-app` devshell with `direnv allow`:
Enter the `pkgs/clan-app` directory and allow [direnv] to load the `clan-app`
devshell with `direnv allow`:
```console
direnv allow
@@ -31,29 +32,35 @@ $ process-compose --use-uds --keep-project -n app
This will start a [process-compose] instance containing two processes:
* `clan-app-ui` which is a background process running a [vite] server for `./ui` in a hot-reload fashion
* `clan-app` which is a [foreground process](https://f1bonacc1.github.io/process-compose/launcher/?h=foreground#foreground-processes),
that is started on demand and provides the [webview] wrapper for the UI.
- `clan-app-ui` which is a background process running a [vite] server for `./ui`
in a hot-reload fashion
- `clan-app` which is a
[foreground process](https://f1bonacc1.github.io/process-compose/launcher/?h=foreground#foreground-processes),
that is started on demand and provides the [webview] wrapper for the UI.
Wait for the `clan-app-ui` process to enter the `Running` state, then navigate to the `clan-app` process and press `F7`.
This will start the [webview] window and bring `clan-app`'s terminal into the foreground, allowing for interaction with
the debugger if required.
Wait for the `clan-app-ui` process to enter the `Running` state, then navigate
to the `clan-app` process and press `F7`. This will start the [webview] window
and bring `clan-app`'s terminal into the foreground, allowing for interaction
with the debugger if required.
If you need to restart, simply enter `ctrl+c` and you will be dropped back into the `process-compose` terminal.
From there you can start `clan-app` again with `F7`.
If you need to restart, simply enter `ctrl+c` and you will be dropped back into
the `process-compose` terminal. From there you can start `clan-app` again with
`F7`.
> **Note**
> If you are interacting with a breakpoint, do not continue/exit with `ctrl+c` as this will introduce a quirk
> the next time you start `clan-app` where you will be unable to see the input you are typing in a debugging session.
> **Note** If you are interacting with a breakpoint, do not continue/exit with
> `ctrl+c` as this will introduce a quirk the next time you start `clan-app`
> where you will be unable to see the input you are typing in a debugging
> session.
>
> Instead, exit the debugger with `q+Enter`.
Follow the instructions below to set up your development environment and start the application:
Follow the instructions below to set up your development environment and start
the application:
## Storybook
We use [Storybook] to develop UI components.
It can be started by running the following:
We use [Storybook] to develop UI components. It can be started by running the
following:
```console
$ process-compose --use-uds --keep-project -n storybook
@@ -61,20 +68,20 @@ $ process-compose --use-uds --keep-project -n storybook
This will start a [process-compose] instance containing two processes:
* `storybook` which is the main [storybook] process.
* `luakit` which is a [webkit]-based browser for viewing the stories with. This is the same underlying engine used when
rendering the app.
- `storybook` which is the main [storybook] process.
- `luakit` which is a [webkit]-based browser for viewing the stories with. This
is the same underlying engine used when rendering the app.
You can run storybook tests with `npm run test-storybook`.
If you change how a component(s) renders,
you will need to update the snapshots with `npm run test-storybook-update-snapshots`.
You can run storybook tests with `npm run test-storybook`. If you change how a
component(s) renders, you will need to update the snapshots with
`npm run test-storybook-update-snapshots`.
## Start clan-app without process-compose
1. **Navigate to the Webview UI Directory**
Go to the `clan-core/pkgs/clan-app/ui` directory and start the web server by executing:
Go to the `clan-core/pkgs/clan-app/ui` directory and start the web server by
executing:
```bash
npm install
@@ -89,7 +96,8 @@ you will need to update the snapshots with `npm run test-storybook-update-snapsh
./bin/clan-app --debug --content-uri http://localhost:3000
```
This will start the application in debug mode and link it to the web server running at `http://localhost:3000`.
This will start the application in debug mode and link it to the web server
running at `http://localhost:3000`.
### Debugging Style and Layout
@@ -110,10 +118,14 @@ $ ./pygdb.sh ./bin/clan-app --content-uri http://localhost:3000/ --debug
```
I recommend creating the file `.local.env` with the content:
```bash
export WEBVIEW_LIB_DIR=$HOME/Projects/webview/build/core
```
where `WEBVIEW_LIB_DIR` points to a local checkout of the webview lib source, that has been build by hand. The `.local.env` file will be automatically sourced if it exists and will be ignored by git.
where `WEBVIEW_LIB_DIR` points to a local checkout of the webview lib source,
that has been build by hand. The `.local.env` file will be automatically sourced
if it exists and will be ignored by git.
### Profiling
@@ -122,4 +134,3 @@ To activate profiling you can run
```bash
CLAN_CLI_PERF=1 ./bin/clan-app
```

View File

@@ -5,7 +5,7 @@ from contextlib import ExitStack
from dataclasses import dataclass, field
from typing import TYPE_CHECKING, Any
from clan_lib.api import ApiError, ApiResponse, ErrorDataClass
from clan_lib.api import ApiResponse
from clan_lib.api.tasks import WebThread
from clan_lib.async_run import set_current_thread_opkey, set_should_cancel
@@ -43,7 +43,7 @@ class ApiBridge(ABC):
def process_request(self, request: BackendRequest) -> None:
"""Process an API request through the middleware chain."""
from .middleware import MiddlewareContext # noqa: PLC0415
from .middleware import MiddlewareContext
with ExitStack() as stack:
context = MiddlewareContext(
@@ -59,7 +59,7 @@ class ApiBridge(ABC):
f"{middleware.__class__.__name__} => {request.method_name}",
)
middleware.process(context)
except Exception as e: # noqa: BLE001
except Exception as e:
# If middleware fails, handle error
self.send_api_error_response(
request.op_key or "unknown",
@@ -75,6 +75,8 @@ class ApiBridge(ABC):
location: list[str],
) -> None:
"""Send an error response."""
from clan_lib.api import ApiError, ErrorDataClass
error_data = ErrorDataClass(
op_key=op_key,
status="error",

View File

@@ -91,6 +91,7 @@ def get_system_file(
def gtk_open_file(file_request: FileRequest, op_key: str) -> bool:
def returns(data: SuccessDataClass | ErrorDataClass) -> None:
global RESULT
RESULT[op_key] = data
def on_file_select(file_dialog: Gtk.FileDialog, task: Gio.Task) -> None:

View File

@@ -94,10 +94,10 @@ class LoggingMiddleware(Middleware):
if self.handler:
self.handler.root_logger.removeHandler(self.handler.new_handler)
self.handler.new_handler.close()
if self.original_ctx:
set_async_ctx(self.original_ctx)
if self.log_f:
self.log_f.close()
if self.original_ctx:
set_async_ctx(self.original_ctx)
# Register the logging context manager
self.register_context_manager(context, LoggingContextManager(log_file))

View File

@@ -1,6 +1,5 @@
import logging
import os
import time
from dataclasses import dataclass
from pathlib import Path
@@ -17,7 +16,6 @@ from clan_app.api.middleware import (
LoggingMiddleware,
MethodExecutionMiddleware,
)
from clan_app.deps.http.http_server import HttpApiServer
from clan_app.deps.webview.webview import Size, SizeHint, Webview
log = logging.getLogger(__name__)
@@ -66,6 +64,8 @@ def app_run(app_opts: ClanAppOptions) -> int:
# Start HTTP API server if requested
http_server = None
if app_opts.http_api:
from clan_app.deps.http.http_server import HttpApiServer
openapi_file = os.getenv("OPENAPI_FILE", None)
swagger_dist = os.getenv("SWAGGER_UI_DIST", None)
@@ -95,6 +95,8 @@ def app_run(app_opts: ClanAppOptions) -> int:
log.info("Press Ctrl+C to stop the server")
try:
# Keep the main thread alive
import time
while True:
time.sleep(1)
except KeyboardInterrupt:

View File

@@ -148,8 +148,8 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
self.send_header("Content-Type", content_type)
self.end_headers()
self.wfile.write(file_data)
except (OSError, json.JSONDecodeError, UnicodeDecodeError):
log.exception("Error reading Swagger file")
except Exception as e:
log.error(f"Error reading Swagger file: {e!s}")
self.send_error(500, "Internal Server Error")
def _get_swagger_file_path(self, rel_path: str) -> Path:
@@ -191,13 +191,13 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
return file_data
def do_OPTIONS(self) -> None:
def do_OPTIONS(self) -> None: # noqa: N802
"""Handle CORS preflight requests."""
self.send_response_only(200)
self._send_cors_headers()
self.end_headers()
def do_GET(self) -> None:
def do_GET(self) -> None: # noqa: N802
"""Handle GET requests."""
parsed_url = urlparse(self.path)
path = parsed_url.path
@@ -211,7 +211,7 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
else:
self.send_api_error_response("info", "Not Found", ["http_bridge", "GET"])
def do_POST(self) -> None:
def do_POST(self) -> None: # noqa: N802
"""Handle POST requests."""
parsed_url = urlparse(self.path)
path = parsed_url.path
@@ -252,7 +252,7 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
gen_op_key = str(uuid.uuid4())
try:
self._handle_api_request(method_name, request_data, gen_op_key)
except RuntimeError as e:
except Exception as e:
log.exception(f"Error processing API request {method_name}")
self.send_api_error_response(
gen_op_key,
@@ -264,10 +264,10 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
"""Read and parse the request body. Returns None if there was an error."""
try:
content_length = int(self.headers.get("Content-Length", 0))
if content_length == 0:
return {}
body = self.rfile.read(content_length)
return json.loads(body.decode("utf-8"))
if content_length > 0:
body = self.rfile.read(content_length)
return json.loads(body.decode("utf-8"))
return {}
except json.JSONDecodeError:
self.send_api_error_response(
"post",
@@ -275,7 +275,7 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
["http_bridge", "POST", method_name],
)
return None
except (OSError, ValueError, UnicodeDecodeError) as e:
except Exception as e:
self.send_api_error_response(
"post",
f"Error reading request: {e!s}",
@@ -305,7 +305,7 @@ class HttpBridge(ApiBridge, BaseHTTPRequestHandler):
op_key=op_key,
)
except (KeyError, TypeError, ValueError) as e:
except Exception as e:
self.send_api_error_response(
gen_op_key,
str(e),

View File

@@ -4,11 +4,13 @@ import json
import logging
import threading
import time
from unittest.mock import Mock
from urllib.request import Request, urlopen
import pytest
from clan_lib.api import MethodRegistry, tasks
from clan_lib.async_run import is_async_cancelled
from clan_lib.log_manager import LogManager
from clan_app.api.middleware import (
ArgumentParsingMiddleware,
@@ -51,20 +53,31 @@ def mock_api() -> MethodRegistry:
return api
@pytest.fixture
def mock_log_manager() -> Mock:
"""Create a mock log manager."""
log_manager = Mock(spec=LogManager)
log_manager.create_log_file.return_value.get_file_path.return_value = Mock()
log_manager.create_log_file.return_value.get_file_path.return_value.open.return_value = Mock()
return log_manager
@pytest.fixture
def http_bridge(
mock_api: MethodRegistry,
mock_log_manager: Mock,
) -> tuple[MethodRegistry, tuple]:
"""Create HTTP bridge dependencies for testing."""
middleware_chain = (
ArgumentParsingMiddleware(api=mock_api),
# LoggingMiddleware(log_manager=mock_log_manager),
MethodExecutionMiddleware(api=mock_api),
)
return mock_api, middleware_chain
@pytest.fixture
def http_server(mock_api: MethodRegistry) -> HttpApiServer:
def http_server(mock_api: MethodRegistry, mock_log_manager: Mock) -> HttpApiServer:
"""Create HTTP server with mock dependencies."""
server = HttpApiServer(
api=mock_api,
@@ -74,6 +87,7 @@ def http_server(mock_api: MethodRegistry) -> HttpApiServer:
# Add middleware
server.add_middleware(ArgumentParsingMiddleware(api=mock_api))
# server.add_middleware(LoggingMiddleware(log_manager=mock_log_manager))
server.add_middleware(MethodExecutionMiddleware(api=mock_api))
# Bridge will be created automatically when accessed
@@ -100,6 +114,7 @@ class TestHttpBridge:
# The actual HTTP handling will be tested through the server integration tests
assert len(middleware_chain) == 2
assert isinstance(middleware_chain[0], ArgumentParsingMiddleware)
# assert isinstance(middleware_chain[1], LoggingMiddleware)
assert isinstance(middleware_chain[1], MethodExecutionMiddleware)
@@ -136,14 +151,14 @@ class TestHttpApiServer:
try:
# Test root endpoint
response = urlopen("http://127.0.0.1:8081/")
response = urlopen("http://127.0.0.1:8081/") # noqa: S310
data: dict = json.loads(response.read().decode())
assert data["body"]["status"] == "success"
assert data["body"]["data"]["message"] == "Clan API Server"
assert data["body"]["data"]["version"] == "1.0.0"
# Test methods endpoint
response = urlopen("http://127.0.0.1:8081/api/methods")
response = urlopen("http://127.0.0.1:8081/api/methods") # noqa: S310
data = json.loads(response.read().decode())
assert data["body"]["status"] == "success"
assert "test_method" in data["body"]["data"]["methods"]
@@ -179,7 +194,7 @@ class TestHttpApiServer:
try:
# Test 404 error
res = urlopen("http://127.0.0.1:8081/nonexistent")
res = urlopen("http://127.0.0.1:8081/nonexistent") # noqa: S310
assert res.status == 200
body = json.loads(res.read().decode())["body"]
assert body["status"] == "error"
@@ -244,6 +259,7 @@ class TestIntegration:
def test_full_request_flow(
self,
mock_api: MethodRegistry,
mock_log_manager: Mock,
) -> None:
"""Test complete request flow from server to bridge to middleware."""
server: HttpApiServer = HttpApiServer(
@@ -254,6 +270,7 @@ class TestIntegration:
# Add middleware
server.add_middleware(ArgumentParsingMiddleware(api=mock_api))
# server.add_middleware(LoggingMiddleware(log_manager=mock_log_manager))
server.add_middleware(MethodExecutionMiddleware(api=mock_api))
# Bridge will be created automatically when accessed
@@ -289,6 +306,7 @@ class TestIntegration:
def test_blocking_task(
self,
mock_api: MethodRegistry,
mock_log_manager: Mock,
) -> None:
shared_threads: dict[str, tasks.WebThread] = {}
tasks.BAKEND_THREADS = shared_threads
@@ -303,6 +321,7 @@ class TestIntegration:
# Add middleware
server.add_middleware(ArgumentParsingMiddleware(api=mock_api))
# server.add_middleware(LoggingMiddleware(log_manager=mock_log_manager))
server.add_middleware(MethodExecutionMiddleware(api=mock_api))
# Start server

View File

@@ -12,11 +12,12 @@ from clan_lib.api import MethodRegistry, message_queue
from clan_lib.api.tasks import WebThread
from ._webview_ffi import _encode_c_string, _webview_lib
from .webview_bridge import WebviewBridge
if TYPE_CHECKING:
from clan_app.api.middleware import Middleware
from .webview_bridge import WebviewBridge
log = logging.getLogger(__name__)
@@ -48,7 +49,7 @@ class Webview:
shared_threads: dict[str, WebThread] | None = None
# initialized later
_bridge: WebviewBridge | None = None
_bridge: "WebviewBridge | None" = None
_handle: Any | None = None
_callbacks: dict[str, Callable[..., Any]] = field(default_factory=dict)
_middleware: list["Middleware"] = field(default_factory=list)
@@ -80,7 +81,7 @@ class Webview:
msg = message_queue.get() # Blocks until available
js_code = f"window.notifyBus({json.dumps(msg)});"
self.eval(js_code)
except (json.JSONDecodeError, RuntimeError, AttributeError) as e:
except Exception as e:
print("Bridge notify error:", e)
sleep(0.01) # avoid busy loop
@@ -131,8 +132,10 @@ class Webview:
self._middleware.append(middleware)
def create_bridge(self) -> WebviewBridge:
def create_bridge(self) -> "WebviewBridge":
"""Create and initialize the WebviewBridge with current middleware."""
from .webview_bridge import WebviewBridge
# Use shared_threads if provided, otherwise let WebviewBridge use its default
if self.shared_threads is not None:
bridge = WebviewBridge(
@@ -208,7 +211,7 @@ class Webview:
try:
result = callback(*args)
success = True
except Exception as e: # noqa: BLE001
except Exception as e:
result = str(e)
success = False
self.return_(seq.decode(), 0 if success else 1, json.dumps(result))

View File

@@ -8,6 +8,8 @@ from clan_lib.api.tasks import WebThread
from clan_app.api.api_bridge import ApiBridge, BackendRequest, BackendResponse
from .webview import FuncStatus
if TYPE_CHECKING:
from .webview import Webview
@@ -30,9 +32,6 @@ class WebviewBridge(ApiBridge):
)
log.debug(f"Sending response: {serialized}")
# Import FuncStatus locally to avoid circular import
from .webview import FuncStatus # noqa: PLC0415
self.webview.return_(response._op_key, FuncStatus.SUCCESS, serialized) # noqa: SLF001
def handle_webview_call(

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