dotfiles/os/remote-builds/default.nix

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Nix
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{ pkgs, lib, config, ... }:
let
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vivariumBuilderDefault = {
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systems = [ "x86_64-linux" "aarch64-linux" ];
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protocol = "ssh-ng";
sshUser = "nixremote";
# sshKey doesn't work
};
# MANU ssh-keygen -y -f /etc/ssh/ssh_host_ed25519_key | base64 -w0
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vivariumBuilders = [
{
hostName = "abavorana.frogeye.fr";
publicHostKey = "c3NoLWVkMjU1MTkgQUFBQUMzTnphQzFsWkRJMU5URTVBQUFBSU5iNzcrS01tRHI0MVhZdmZITXQvK3NHMkJCSEIzYUl4M045WDNVejhFaUogZ2VvZmZyZXlAY3VyYWNhbwo=";
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supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
maxJobs = 8;
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}
{
hostName = "ludwig.clowncar.frogeye.fr";
publicHostKey = "c3NoLWVkMjU1MTkgQUFBQUMzTnphQzFsWkRJMU5URTVBQUFBSU41SXZhMzNXeGplN095cHVEUHBSakFNMTlvRUtEVDRiYlpUTm82V1FLZTAgZ2VvZmZyZXlAY3VyYWNhbwo=";
maxJobs = 4;
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}
];
# MANU pass vivarium/lemmy/remote-builds/cache | nix key convert-secret-to-public | cat
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publicKeys = [
"abavorana.frogeye.fr:rcKZ9gwaIQLcst/vbhbF7meUQD5sveT2QQN4a+Zo1BM="
"ludwig.clowncar.frogeye.fr:jTlN0fCOLU49M3LQw5j/u++Gmwrsv3m9RGs0slSg6r0="
];
in
{
config = {
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system.activationScripts.remote = {
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supportsDryActivation = true;
text = ''
mkdir -p /root/.ssh
cat ${pkgs.writeText "root-ssh-config" (lib.strings.concatLines (builtins.map (builder: ''
Host ${builder.hostName}
ControlMaster auto
ControlPath ~/.ssh/master-%r@%n:%p
ControlPersist 60s
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'') vivariumBuilders)) } > /root/.ssh/config
'';
};
nix = {
buildMachines = builtins.map (vivariumBuilder: vivariumBuilderDefault // vivariumBuilder) vivariumBuilders;
distributedBuilds = false;
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settings = {
builders-use-substitutes = true;
trusted-public-keys = publicKeys;
trusted-substituters = builtins.map (builder: "${builder.protocol}://${builder.sshUser}@${builder.hostName}") config.nix.buildMachines;
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};
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};
};
}