tvl-depot/ops/modules/tvl-buildkite.nix
Vincent Ambo 90281c4eac refactor(ops): Split //ops/nixos into different locations
Splits //ops/nixos into:

* //ops/nixos.nix - utility functions for building systems
* //ops/machines - shared machine definitions (read by readTree)
* //ops/modules - shared NixOS modules (skipped by readTree)

This simplifies working with the configuration fixpoint in whitby, and
is overall a bit more in line with how NixOS systems in user folders
currently work.

Change-Id: I1322ec5cc76c0207c099c05d44828a3df0b3ffc1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2931
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: glittershark <grfn@gws.fyi>
2021-04-11 22:18:22 +00:00

48 lines
1.4 KiB
Nix

# Configuration for the TVL buildkite agents.
{ config, depot, pkgs, lib, ... }:
let
cfg = config.services.depot.buildkite;
agents = lib.range 1 cfg.agentCount;
description = "Buildkite agents for TVL";
# All Buildkite hooks are actually besadii, but it's being invoked
# with different names.
buildkiteHooks = pkgs.runCommandNoCC "buildkite-hooks" {} ''
mkdir -p $out/bin
ln -s ${depot.ops.besadii}/bin/besadii $out/bin/post-command
'';
in {
options.services.depot.buildkite = {
enable = lib.mkEnableOption description;
agentCount = lib.mkOption {
type = lib.types.int;
description = "Number of Buildkite agents to launch";
};
};
config = lib.mkIf cfg.enable {
# Run the Buildkite agents using the default upstream module.
services.buildkite-agents = builtins.listToAttrs (map (n: rec {
name = "whitby-${toString n}";
value = {
inherit name;
enable = true;
tokenPath = "/etc/secrets/buildkite-agent-token";
hooks.post-command = "${buildkiteHooks}/bin/post-command";
};
}) agents);
# Set up a group for all Buildkite agent users
users = {
groups.buildkite-agents = {};
users = builtins.listToAttrs (map (n: rec {
name = "buildkite-agent-whitby-${toString n}";
value = {
group = lib.mkForce "buildkite-agents";
extraGroups = [ name ];
};
}) agents);
};
};
}