init: whisparr

nixarr/default.nix

@@ -27,6 +27,7 @@ in {
     ./sabnzbd
     ./sonarr
     ./transmission
+    ./whisparr
     ../util
   ];
 

nixarr/whisparr/default.nix

@@ -0,0 +1,136 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixarr.whisparr;
+  globals = config.util-nixarr.globals;
+  defaultPort = 6969;
+  nixarr = config.nixarr;
+in {
+  options.nixarr.whisparr = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = ''
+        Whether or not to enable the whisparr service.
+      '';
+    };
+
+    package = mkPackageOption pkgs "whisparr" {};
+
+    stateDir = mkOption {
+      type = types.path;
+      default = "${nixarr.stateDir}/whisparr";
+      defaultText = literalExpression ''"''${nixarr.stateDir}/whisparr"'';
+      example = "/nixarr/.state/whisparr";
+      description = ''
+        The location of the state directory for the whisparr service.
+
+        > **Warning:** Setting this to any path, where the subpath is not
+        > owned by root, will fail! For example:
+        >
+        > ```nix
+        >   stateDir = /home/user/nixarr/.state/whisparr
+        > ```
+        >
+        > Is not supported, because `/home/user` is owned by `user`.
+      '';
+    };
+
+    openFirewall = mkOption {
+      type = types.bool;
+      defaultText = literalExpression ''!nixarr.whisparr.vpn.enable'';
+      default = !cfg.vpn.enable;
+      example = true;
+      description = "Open firewall for whisparr";
+    };
+
+    vpn.enable = mkOption {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = ''
+        **Required options:** [`nixarr.vpn.enable`](#nixarr.vpn.enable)
+
+        Route whisparr traffic through the VPN.
+      '';
+    };
+  };
+
+  config = mkIf (nixarr.enable && cfg.enable) {
+    assertions = [
+      {
+        assertion = cfg.vpn.enable -> nixarr.vpn.enable;
+        message = ''
+          The nixarr.whisparr.vpn.enable option requires the
+          nixarr.vpn.enable option to be set, but it was not.
+        '';
+      }
+    ];
+
+    users = {
+      groups.${globals.whisparr.group}.gid = globals.gids.${globals.whisparr.group};
+      users.${globals.whisparr.user} = {
+        isSystemUser = true;
+        group = globals.whisparr.group;
+        uid = globals.uids.${globals.whisparr.user};
+      };
+    };
+
+    systemd.tmpfiles.rules = [
+      "d '${nixarr.mediaDir}/library'        0775 ${globals.libraryOwner.user} ${globals.libraryOwner.group} - -"
+      "d '${nixarr.mediaDir}/library/xxx'    0775 ${globals.libraryOwner.user} ${globals.libraryOwner.group} - -"
+    ];
+
+    services.whisparr = {
+      enable = cfg.enable;
+      package = cfg.package;
+      user = globals.whisparr.user;
+      group = globals.whisparr.group;
+      openFirewall = cfg.openFirewall;
+      dataDir = cfg.stateDir;
+    };
+
+    # Enable and specify VPN namespace to confine service in.
+    systemd.services.whisparr.vpnConfinement = mkIf cfg.vpn.enable {
+      enable = true;
+      vpnNamespace = "wg";
+    };
+
+    # Port mappings
+    vpnNamespaces.wg = mkIf cfg.vpn.enable {
+      portMappings = [
+        {
+          from = defaultPort;
+          to = defaultPort;
+        }
+      ];
+    };
+
+    services.nginx = mkIf cfg.vpn.enable {
+      enable = true;
+
+      recommendedTlsSettings = true;
+      recommendedOptimisation = true;
+      recommendedGzipSettings = true;
+
+      virtualHosts."127.0.0.1:${builtins.toString defaultPort}" = {
+        listen = [
+          {
+            addr = "0.0.0.0";
+            port = defaultPort;
+          }
+        ];
+        locations."/" = {
+          recommendedProxySettings = true;
+          proxyWebsockets = true;
+          proxyPass = "http://192.168.15.1:${builtins.toString defaultPort}";
+        };
+      };
+    };
+  };
+}

util/globals/default.nix

@@ -35,6 +35,7 @@ in {
       sabnzbd = 38;
       transmission = 70;
       cross-seed = 183;
+      whisparr = 272;
     };
     gids = {
       autobrr = 188;
@@ -109,5 +110,9 @@ in {
       user = "cross-seed";
       group = "cross-seed";
     };
+    whisparr = {
+      user = "whisparr";
+      group = globals.libraryOwner.group;
+    };
   };
 }