Files
clan-core/checks/update/flake-module.nix
2025-10-05 23:26:24 +02:00

320 lines
13 KiB
Nix

{ self, privateInputs, ... }:
{
# Machine for update test
clan.machines.test-update-machine = {
imports = [
self.nixosModules.test-update-machine
# Import the configuration file that will be created/updated during the test
./test-update-machine/configuration.nix
];
};
flake.nixosModules.test-update-machine =
{ lib, modulesPath, ... }:
{
imports = [
(modulesPath + "/testing/test-instrumentation.nix")
(modulesPath + "/profiles/qemu-guest.nix")
self.clanLib.test.minifyModule
../../lib/test/container-test-driver/nixos-module.nix
];
# Apply patch to fix x-initrd.mount filesystem handling in switch-to-configuration-ng
nixpkgs.overlays = [
(_final: prev: {
switch-to-configuration-ng = prev.switch-to-configuration-ng.overrideAttrs (old: {
patches = (old.patches or [ ]) ++ [ ./switch-to-configuration-initrd-mount-fix.patch ];
});
})
];
networking.hostName = "update-machine";
environment.etc."install-successful".text = "ok";
# Enable SSH and add authorized key for testing
services.openssh.enable = true;
services.openssh.settings.PasswordAuthentication = false;
users.users.root.openssh.authorizedKeys.keys = [ (builtins.readFile ../assets/ssh/pubkey) ];
services.openssh.knownHosts.localhost.publicKeyFile = ../assets/ssh/pubkey;
services.openssh.hostKeys = [
{
path = ../assets/ssh/privkey;
type = "ed25519";
}
];
security.sudo.wheelNeedsPassword = false;
boot.consoleLogLevel = lib.mkForce 100;
boot.kernelParams = [ "boot.shell_on_fail" ];
boot.isContainer = true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
# Preserve the IP addresses assigned by the test framework
# (based on virtualisation.vlans = [1] and node number 1)
networking.interfaces.eth1 = {
useDHCP = false;
ipv4.addresses = [
{
address = "192.168.1.1";
prefixLength = 24;
}
];
ipv6.addresses = [
{
address = "2001:db8:1::1";
prefixLength = 64;
}
];
};
nix.settings = {
flake-registry = "";
# required for setting the `flake-registry`
experimental-features = [
"nix-command"
"flakes"
];
};
# Define the mounts that exist in the container to prevent them from being stopped
fileSystems = {
"/" = {
device = "/dev/disk/by-label/nixos";
fsType = "ext4";
options = [ "x-initrd.mount" ];
};
"/nix/.rw-store" = {
device = "tmpfs";
fsType = "tmpfs";
options = [
"mode=0755"
];
};
"/nix/store" = {
device = "overlay";
fsType = "overlay";
options = [
"lowerdir=/nix/.ro-store"
"upperdir=/nix/.rw-store/upper"
"workdir=/nix/.rw-store/work"
];
};
};
};
perSystem =
{
pkgs,
...
}:
{
checks =
pkgs.lib.optionalAttrs (pkgs.stdenv.isLinux && pkgs.stdenv.hostPlatform.system == "x86_64-linux")
{
nixos-test-update =
let
closureInfo = pkgs.closureInfo {
rootPaths = [
self.packages.${pkgs.hostPlatform.system}.clan-cli
self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks
self.clanInternals.machines.${pkgs.hostPlatform.system}.test-update-machine.config.system.build.toplevel
pkgs.stdenv.drvPath
pkgs.bash.drvPath
pkgs.buildPackages.xorg.lndir
pkgs.bubblewrap
]
++ builtins.map (i: i.outPath) (builtins.attrValues self.inputs)
++ builtins.map (i: i.outPath) (builtins.attrValues privateInputs);
};
in
self.clanLib.test.containerTest {
name = "update";
nodes.machine = {
imports = [ self.nixosModules.test-update-machine ];
};
extraPythonPackages = _p: [
self.legacyPackages.${pkgs.hostPlatform.system}.nixosTestLib
];
testScript = ''
import tempfile
import os
import subprocess
from nixos_test_lib.ssh import setup_ssh_connection # type: ignore[import-untyped]
from nixos_test_lib.nix_setup import prepare_test_flake # type: ignore[import-untyped]
start_all()
machine.wait_for_unit("multi-user.target")
# Verify initial state
machine.succeed("test -f /etc/install-successful")
machine.fail("test -f /etc/update-successful")
# Set up test environment
with tempfile.TemporaryDirectory() as temp_dir:
# Prepare test flake and Nix store
flake_dir = prepare_test_flake(
temp_dir,
"${self.checks.${pkgs.hostPlatform.system}.clan-core-for-checks}",
"${closureInfo}"
)
(flake_dir / ".clan-flake").write_text("") # Ensure .clan-flake exists
# Set up SSH connection
ssh_conn = setup_ssh_connection(
machine,
temp_dir,
"${../assets/ssh/privkey}"
)
# Update the machine configuration to add a new file
machine_config_path = os.path.join(flake_dir, "machines", "test-update-machine", "configuration.nix")
os.makedirs(os.path.dirname(machine_config_path), exist_ok=True)
# Note: update command doesn't accept -i flag, SSH key must be in ssh-agent
# Start ssh-agent and add the key
agent_output = subprocess.check_output(["${pkgs.openssh}/bin/ssh-agent", "-s"], text=True)
for line in agent_output.splitlines():
if line.startswith("SSH_AUTH_SOCK="):
os.environ["SSH_AUTH_SOCK"] = line.split("=", 1)[1].split(";")[0]
elif line.startswith("SSH_AGENT_PID="):
os.environ["SSH_AGENT_PID"] = line.split("=", 1)[1].split(";")[0]
# Add the SSH key to the agent
subprocess.run(["${pkgs.openssh}/bin/ssh-add", ssh_conn.ssh_key], check=True)
##############
print("TEST: update with --build-host local")
with open(machine_config_path, "w") as f:
f.write("""
{
environment.etc."update-build-local-successful".text = "ok";
}
""")
# rsync the flake into the container
os.environ["PATH"] = f"{os.environ['PATH']}:${pkgs.openssh}/bin"
subprocess.run(
[
"${pkgs.rsync}/bin/rsync",
"-a",
"--delete",
"-e",
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no",
f"{str(flake_dir)}/",
f"root@192.168.1.1:/flake",
],
check=True
)
# allow machine to ssh into itself
subprocess.run([
"ssh",
"-o", "UserKnownHostsFile=/dev/null",
"-o", "StrictHostKeyChecking=no",
f"root@192.168.1.1",
"mkdir -p /root/.ssh && chmod 700 /root/.ssh && echo \"$(cat \"${../assets/ssh/privkey}\")\" > /root/.ssh/id_ed25519 && chmod 600 /root/.ssh/id_ed25519",
], check=True)
# install the clan-cli package into the container's Nix store
subprocess.run(
[
"${pkgs.nix}/bin/nix",
"copy",
"--from",
f"{temp_dir}/store",
"--to",
"ssh://root@192.168.1.1",
"--no-check-sigs",
f"${self.packages.${pkgs.hostPlatform.system}.clan-cli}",
"--extra-experimental-features", "nix-command flakes",
],
check=True,
env={
**os.environ,
"NIX_SSHOPTS": "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no",
},
)
# Run ssh on the host to run the clan update command via --build-host local
subprocess.run([
"ssh",
"-o", "UserKnownHostsFile=/dev/null",
"-o", "StrictHostKeyChecking=no",
f"root@192.168.1.1",
"${self.packages.${pkgs.hostPlatform.system}.clan-cli}/bin/clan",
"machines",
"update",
"--debug",
"--flake", "/flake",
"--host-key-check", "none",
"--upload-inputs", # Use local store instead of fetching from network
"--build-host", "localhost",
"test-update-machine",
"--target-host", f"root@localhost",
], check=True)
# Verify the update was successful
machine.succeed("test -f /etc/update-build-local-successful")
##############
print("TEST: update with --target-host")
with open(machine_config_path, "w") as f:
f.write("""
{
environment.etc."target-host-update-successful".text = "ok";
}
""")
# Run clan update command
subprocess.run([
"${self.packages.${pkgs.hostPlatform.system}.clan-cli-full}/bin/clan",
"machines",
"update",
"--debug",
"--flake", flake_dir,
"--host-key-check", "none",
"--upload-inputs", # Use local store instead of fetching from network
"test-update-machine",
"--target-host", f"root@192.168.1.1:{ssh_conn.host_port}",
], check=True)
# Verify the update was successful
machine.succeed("test -f /etc/target-host-update-successful")
##############
print("TEST: update with --build-host")
# Update configuration again
with open(machine_config_path, "w") as f:
f.write("""
{
environment.etc."build-host-update-successful".text = "ok";
}
""")
# Run clan update command with --build-host
subprocess.run([
"${self.packages.${pkgs.hostPlatform.system}.clan-cli-full}/bin/clan",
"machines",
"update",
"--debug",
"--flake", flake_dir,
"--host-key-check", "none",
"--upload-inputs", # Use local store instead of fetching from network
"--build-host", f"root@192.168.1.1:{ssh_conn.host_port}",
"test-update-machine",
"--target-host", f"root@192.168.1.1:{ssh_conn.host_port}",
], check=True)
# Verify the second update was successful
machine.succeed("test -f /etc/build-host-update-successful")
'';
} { inherit pkgs self; };
};
};
}