refactor(ops): Split //ops/nixos into different locations r/2482

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>

1 files changed, 27 insertions, 0 deletions

diff --git a/ops/modules/paroxysm.nix b/ops/modules/paroxysm.nix
new file mode 100644
index 000000000000..cd9cd3866e47
--- /dev/null
+++ b/ops/modules/paroxysm.nix
@@ -0,0 +1,27 @@
+{ depot, config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.depot.paroxysm;
+  description = "TVL's majestic IRC bot";
+in {
+  options.services.depot.paroxysm.enable = lib.mkEnableOption description;
+
+  config = lib.mkIf cfg.enable {
+    systemd.services.paroxysm = {
+      inherit description;
+      script = "${depot.fun.paroxysm}/bin/paroxysm";
+      wantedBy = [ "multi-user.target" ];
+
+      environment = {
+        PARX_DATABASE_URL = "postgresql://tvldb:tvldb@localhost/tvldb";
+        PARX_IRC_CONFIG_PATH = "/var/lib/paroxysm/irc.toml";
+      };
+
+      serviceConfig = {
+        DynamicUser = true;
+        StateDirectory = "paroxysm";
+        Restart = "always";
+      };
+    };
+  };
+}