nixos: services: servarr: extract bazarr

It's not an actual *arr package, but closely related to them. Extract
its configuration to a sub-module.

modules/nixos/services/servarr/bazarr.nix

@@ -0,0 +1,29 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.services.servarr.bazarr;
+in
+{
+  options.my.services.servarr.bazarr = with lib; {
+    enable = lib.mkEnableOption "Bazarr" // {
+      default = config.my.services.servarr.enableAll;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.bazarr = {
+      enable = true;
+      group = "media";
+    };
+
+    # Set-up media group
+    users.groups.media = { };
+
+    my.services.nginx.virtualHosts = {
+      bazarr = {
+        port = 6767;
+      };
+    };
+
+    # Bazarr does not log authentication failures...
+  };
+}

modules/nixos/services/servarr/default.nix

@@ -7,7 +7,6 @@ let
   cfg = config.my.services.servarr;
 
   ports = {
-    bazarr = 6767;
     lidarr = 8686;
     radarr = 7878;
     readarr = 8787;
@@ -55,13 +54,13 @@ let
   ]);
 in
 {
+  imports = [
+    ./bazarr.nix
+  ];
+
   options.my.services.servarr = {
     enableAll = lib.mkEnableOption "media automation suite";
 
-    bazarr = {
-      enable = lib.mkEnableOption "Bazarr" // { default = cfg.enableAll; };;
-    };
-
     lidarr = {
       enable = lib.mkEnableOption "Lidarr" // { default = cfg.enableAll; };
     };
@@ -80,8 +79,6 @@ in
   };
 
   config = (lib.mkMerge [
-    # Bazarr does not log authentication failures...
-    (mkFullConfig "bazarr")
     # Lidarr for music
     (mkFullConfig "lidarr")
     (mkFail2Ban "lidarr")