domoticz: add module

nixos/modules/module-list.nix

@@ -432,6 +432,7 @@
   ./services/misc/dysnomia.nix
   ./services/misc/disnix.nix
   ./services/misc/docker-registry.nix
+  ./services/misc/domoticz.nix
   ./services/misc/errbot.nix
   ./services/misc/etcd.nix
   ./services/misc/ethminer.nix

nixos/modules/services/misc/domoticz.nix

@@ -0,0 +1,89 @@
+{ lib, pkgs, config, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.domoticz;
+  pkgDesc = "Domoticz home automation";
+
+in {
+
+  options = {
+
+    services.domoticz = {
+      enable = mkEnableOption pkgDesc;
+
+      user = mkOption {
+        type = types.str;
+        default = "domoticz";
+        description = "domoticz user";
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "domoticz";
+        description = "domoticz group";
+      };
+
+      extraGroups = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+        description = "Extra groups to add to domoticz user";
+      };
+
+      stateDir = mkOption {
+        type = types.path;
+        default = "/var/lib/domoticz/";
+        description = "The state directory for domoticz";
+        example = "/home/bob/.domoticz/";
+      };
+
+      bind = mkOption {
+        type = types.str;
+        default = "0.0.0.0";
+        description = "IP address to bind to.";
+      };
+
+      port = mkOption {
+        type = types.int;
+        default = 8080;
+        description = "Port to bind to for HTTP, set to 0 to disable HTTP.";
+      };
+
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    users.users."domoticz" = {
+      name = cfg.user;
+      group = cfg.group;
+      extraGroups = cfg.extraGroups;
+      home = cfg.stateDir;
+      createHome = true;
+      description = pkgDesc;
+    };
+
+    users.groups."domoticz" = {
+      name = cfg.group;
+    };
+
+    systemd.services."domoticz" = {
+      description = pkgDesc;
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network-online.target" ];
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+        Restart = "always";
+        ExecStart = ''
+          ${pkgs.domoticz}/bin/domoticz -noupdates -www ${toString cfg.port} -wwwbind ${cfg.bind} -sslwww 0 -userdata ${cfg.stateDir} -approot ${pkgs.domoticz}/share/domoticz/ -pidfile /var/run/domoticz.pid
+        '';
+      };
+    };
+
+  };
+
+}