39 lines
1.6 KiB
Nix
39 lines
1.6 KiB
Nix
{ pkgs, lib, ... }:
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{
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boot.isContainer = true;
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# needed since nixpkgs 7fb2f407c01b017737eafc26b065d7f56434a992 removed the getty unit by default
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console.enable = true;
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# undo qemu stuff
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system.build.initialRamdisk = "";
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virtualisation.sharedDirectories = lib.mkForce { };
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networking.useDHCP = false;
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# PAM requires setuid and doesn't work in our containers
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services.openssh.settings.UsePAM = false;
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# We use networkd to assign static ip addresses
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networking.useNetworkd = true;
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services.resolved.enable = false;
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# Rename the host0 interface to eth0 to match what we expect in VM tests.
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system.activationScripts.renameInterface = ''
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${pkgs.iproute2}/bin/ip link set dev host0 name eth1
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'';
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systemd.services.backdoor.enable = false;
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# we don't have permission to set cpu scheduler in our container
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systemd.services.nix-daemon.serviceConfig.CPUSchedulingPolicy = lib.mkForce "";
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# Adds `Include /nix/store/...` to `/etc/ssh/ssh_config`[1] which will make
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# SSH fail when running inside a container test as SSH checks the permissions
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# of the config files it reads which can't be disabled[2] and all the store
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# paths inside the build sandbox (and the container by extension) are owned
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# by `nobody:nogroup` rather than `root:nixbld`.
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# [1]: https://github.com/NixOS/nixpkgs/blob/29335f23bea5e34228349ea739f31ee79e267b88/nixos/modules/programs/ssh.nix#L344-L347
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# [2]: https://github.com/openssh/openssh-portable/blob/b5b405fee7f3e79d44e2d2971a4b6b4cc53f112e/readconf.c#L2579-L2587
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programs.ssh.systemd-ssh-proxy.enable = false;
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}
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