modules: services: put modules into folders

modules/services/gitea/default.nix

@@ -0,0 +1,79 @@
+# A low-ressource, full-featured git forge.
+{ config, lib, ... }:
+let
+  cfg = config.my.services.gitea;
+in
+{
+  options.my.services.gitea = with lib; {
+    enable = mkEnableOption "Gitea";
+    port = mkOption {
+      type = types.port;
+      default = 3042;
+      example = 8080;
+      description = "Internal port";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.gitea =
+      let
+        giteaDomain = "gitea.${config.networking.domain}";
+      in
+      {
+        enable = true;
+
+        appName = "Ambroisie's forge";
+        httpPort = cfg.port;
+        domain = giteaDomain;
+        rootUrl = "https://${giteaDomain}";
+
+        user = "git";
+        lfs.enable = true;
+
+        useWizard = false;
+        disableRegistration = true;
+
+        # only send cookies via HTTPS
+        cookieSecure = true;
+
+        database = {
+          type = "postgres"; # Automatic setup
+          user = "git"; # User needs to be the same as gitea user
+        };
+
+        # NixOS module uses `gitea dump` to backup repositories and the database,
+        # but it produces a single .zip file that's not very backup friendly.
+        # I configure my backup system manually below.
+        dump.enable = false;
+      };
+
+    users.users.git = {
+      description = "Gitea Service";
+      home = config.services.gitea.stateDir;
+      useDefaultShell = true;
+      group = "git";
+
+      # The service for gitea seems to hardcode the group as
+      # gitea, so, uh, just in case?
+      extraGroups = [ "gitea" ];
+
+      isSystemUser = true;
+    };
+    users.groups.git = { };
+
+    # Proxy to Gitea
+    my.services.nginx.virtualHosts = [
+      {
+        subdomain = "gitea";
+        inherit (cfg) port;
+      }
+    ];
+
+    my.services.backup = {
+      paths = [
+        config.services.gitea.lfs.contentDir
+        config.services.gitea.repositoryRoot
+      ];
+    };
+  };
+}