Change-Id: I5b1dfaaf28e835cac5b897e18b015d90ac3b2857 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5665 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi>
		
			
				
	
	
		
			77 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
	
		
			2.2 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-${toString n}";
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        value = {
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          inherit name;
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          enable = true;
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          tokenPath = config.age.secretsDir + "/buildkite-agent-token";
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          privateSshKeyPath = config.age.secretsDir + "/buildkite-private-key";
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          hooks.post-command = "${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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