76 lines
2.1 KiB
Nix
76 lines
2.1 KiB
Nix
# Configuration for the TVL buildkite agents.
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{ config, depot, pkgs, lib, ... }:
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let
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cfg = config.services.depot.buildkite;
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agents = lib.range 1 cfg.agentCount;
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description = "Buildkite agents for TVL";
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besadiiWithConfig = name: pkgs.writeShellScript "besadii-whitby" ''
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export BESADII_CONFIG=/run/agenix/buildkite-besadii-config
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exec -a ${name} ${depot.ops.besadii}/bin/besadii "$@"
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'';
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# All Buildkite hooks are actually besadii, but it's being invoked
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# with different names.
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buildkiteHooks = pkgs.runCommandNoCC "buildkite-hooks" { } ''
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mkdir -p $out/bin
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ln -s ${besadiiWithConfig "post-command"} $out/bin/post-command
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'';
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credentialHelper = pkgs.writeShellScriptBin "git-credential-gerrit-creds" ''
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echo 'username=buildkite'
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echo "password=$(jq -r '.gerritPassword' /run/agenix/buildkite-besadii-config)"
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'';
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in
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{
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options.services.depot.buildkite = {
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enable = lib.mkEnableOption description;
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agentCount = lib.mkOption {
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type = lib.types.int;
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description = "Number of Buildkite agents to launch";
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};
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};
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config = lib.mkIf cfg.enable {
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# Run the Buildkite agents using the default upstream module.
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services.buildkite-agents = builtins.listToAttrs (map
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(n: rec {
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name = "whitby-${toString n}";
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value = {
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inherit name;
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enable = true;
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tokenPath = "/run/agenix/buildkite-agent-token";
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hooks.post-command = "${buildkiteHooks}/bin/post-command";
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runtimePackages = with pkgs; [
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bash
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coreutils
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credentialHelper
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curl
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git
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gnutar
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gzip
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jq
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nix
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];
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};
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})
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agents);
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# Set up a group for all Buildkite agent users
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users = {
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groups.buildkite-agents = { };
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users = builtins.listToAttrs (map
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(n: rec {
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name = "buildkite-agent-whitby-${toString n}";
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value = {
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isSystemUser = true;
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group = lib.mkForce "buildkite-agents";
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extraGroups = [ name "docker" ];
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};
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})
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agents);
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};
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};
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}
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