nixos/go-neb: init

nixos/modules/module-list.nix

@@ -624,6 +624,7 @@
   ./services/networking/gdomap.nix
   ./services/networking/git-daemon.nix
   ./services/networking/gnunet.nix
+  ./services/networking/go-neb.nix
   ./services/networking/go-shadowsocks2.nix
   ./services/networking/gogoclient.nix
   ./services/networking/gvpe.nix

nixos/modules/services/networking/go-neb.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.go-neb;
+
+  configFile = pkgs.writeText "config.yml" (builtins.toJSON cfg.config);
+in {
+  options.services.go-neb = {
+    enable = mkEnableOption "Extensible matrix bot written in Go";
+
+    bindAddress = mkOption {
+      type = types.str;
+      description = "Port (and optionally address) to listen on.";
+      default = ":4050";
+    };
+
+    baseUrl = mkOption {
+      type = types.str;
+      description = "Public-facing endpoint that can receive webhooks.";
+    };
+
+    config = mkOption {
+      type = types.uniq types.attrs;
+      description = ''
+        Your <filename>config.yaml</filename> as a Nix attribute set.
+        See <link xlink:href="https://github.com/matrix-org/go-neb/blob/master/config.sample.yaml">config.sample.yaml</link>
+        for possible options.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.go-neb = {
+      description = "Extensible matrix bot written in Go";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      environment = {
+        BASE_URL = cfg.baseUrl;
+        BIND_ADDRESS = cfg.bindAddress;
+        CONFIG_FILE = configFile;
+      };
+
+      serviceConfig = {
+        ExecStart = "${pkgs.go-neb}/bin/go-neb";
+        DynamicUser = true;
+      };
+    };
+  };
+
+  meta.maintainers = with maintainers; [ hexa maralorn ];
+}