nixos/rqbit: init service module

nixos/doc/manual/release-notes/rl-2605.section.md

@@ -20,6 +20,8 @@
 
 - [reaction](https://reaction.ppom.me/), a daemon that scans program outputs for repeated patterns, and takes action. A common usage is to scan ssh and webserver logs, and to ban hosts that cause multiple authentication errors. A modern alternative to fail2ban. Available as [services.reaction](#opt-services.reaction.enable).
 
+- [rqbit](https://github.com/ikatson/rqbit), a bittorrent client written in Rust. It has HTTP API and Web UI, and can be used as a library. Available as [services.rqbit](#opt-services.rqbit.enable).
+
 - [Tailscale Serve](https://tailscale.com/kb/1552/tailscale-services), configure Tailscale Serve for exposing local services to your tailnet. Available as [services.tailscale.serve](#opt-services.tailscale.serve.enable).
 
 - [qui](https://github.com/autobrr/qui), a modern alternative webUI for qBittorrent, with multi-instance support. Written in Go/React. Available as [services.qui](#opt-services.qui.enable).

nixos/modules/module-list.nix

@@ -1553,6 +1553,7 @@
   ./services/torrent/peerflix.nix
   ./services/torrent/qbittorrent.nix
   ./services/torrent/qui.nix
+  ./services/torrent/rqbit.nix
   ./services/torrent/rtorrent.nix
   ./services/torrent/torrentstream.nix
   ./services/torrent/transmission.nix

nixos/modules/services/torrent/rqbit.nix

@@ -0,0 +1,151 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    types
+    mkPackageOption
+    mkIf
+    ;
+
+  cfg = config.services.rqbit;
+  stateDir = "/var/lib/rqbit";
+  defaultDownloadDir = "${stateDir}/downloads";
+in
+{
+  options.services.rqbit = {
+    enable = mkEnableOption "rqbit BitTorrent daemon";
+
+    package = mkPackageOption pkgs "rqbit" { };
+
+    user = mkOption {
+      type = types.str;
+      default = "rqbit";
+      description = "User account under which rqbit runs.";
+    };
+
+    group = mkOption {
+      type = types.str;
+      default = "rqbit";
+      description = "Group account under which rqbit runs.";
+    };
+
+    downloadDir = mkOption {
+      type = types.path;
+      default = defaultDownloadDir;
+      example = "/mnt/storage/torrents";
+      description = "Directory where to download torrents.";
+    };
+
+    httpPort = mkOption {
+      type = types.port;
+      default = 3030;
+      description = "The listen port for the HTTP API.";
+    };
+
+    httpHost = mkOption {
+      type = types.str;
+      default = "127.0.0.1";
+      example = "0.0.0.0";
+      description = "The listen host for the HTTP API.";
+    };
+
+    peerPort = mkOption {
+      type = types.port;
+      default = 4240;
+      description = "The port to listen for incoming BitTorrent peer connections (TCP and uTP).";
+    };
+
+    openFirewall = mkEnableOption "opening of the HTTP and Peer ports in the firewall";
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.rqbit = {
+      description = "rqbit BitTorrent Service";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+
+      environment = {
+        HOME = stateDir;
+        RQBIT_HTTP_API_LISTEN_ADDR = "${
+          if (lib.hasInfix ":" cfg.httpHost) then "[${cfg.httpHost}]" else cfg.httpHost
+        }:${toString cfg.httpPort}";
+        RQBIT_LISTEN_PORT = toString cfg.peerPort;
+        RQBIT_SESSION_PERSISTENCE_LOCATION = stateDir;
+      };
+
+      serviceConfig = {
+        ExecStart = "${lib.getExe cfg.package} server start ${cfg.downloadDir}";
+        User = cfg.user;
+        Group = cfg.group;
+
+        StateDirectory = "rqbit";
+        StateDirectoryMode = "0750";
+
+        # systemd-analyze security rqbit
+        ReadWritePaths = mkIf (cfg.downloadDir != defaultDownloadDir) [ cfg.downloadDir ];
+        ProtectSystem = "strict";
+        ProtectHome = "read-only";
+        PrivateTmp = true;
+        PrivateDevices = true;
+        ProtectProc = "invisible";
+        ProcSubset = "pid";
+        PrivateUsers = true;
+        RemoveIPC = true;
+        CapabilityBoundingSet = "";
+        NoNewPrivileges = true;
+        ProtectKernelTunables = true;
+        ProtectKernelModules = true;
+        ProtectKernelLogs = true;
+        ProtectControlGroups = true;
+        ProtectClock = true;
+        ProtectHostname = true;
+        RestrictNamespaces = true;
+        SystemCallFilter = [
+          "@system-service"
+          "@network-io"
+          "@file-system"
+          "~@privileged"
+          "~@resources"
+        ];
+        SystemCallArchitectures = "native";
+        RestrictRealtime = true;
+        RestrictSUIDSGID = true;
+        MemoryDenyWriteExecute = true;
+        LockPersonality = true;
+        RestrictAddressFamilies = [
+          "AF_INET"
+          "AF_INET6"
+          "AF_UNIX"
+        ];
+        UMask = "0027";
+      };
+    };
+
+    users = {
+      users = mkIf (cfg.user == "rqbit") {
+        rqbit = {
+          inherit (cfg) group;
+          isSystemUser = true;
+        };
+      };
+      groups = mkIf (cfg.group == "rqbit") { rqbit = { }; };
+    };
+
+    networking.firewall = mkIf cfg.openFirewall {
+      allowedTCPPorts = [
+        cfg.httpPort
+        cfg.peerPort
+      ];
+      allowedUDPPorts = [ cfg.peerPort ];
+    };
+  };
+
+  meta.maintainers = with lib.maintainers; [ CodedNil ];
+}

nixos/tests/all-tests.nix

@@ -1385,6 +1385,7 @@ in
   rosenpass = runTest ./rosenpass.nix;
   roundcube = runTest ./roundcube.nix;
   routinator = handleTest ./routinator.nix { };
+  rqbit = handleTest ./rqbit.nix { };
   rshim = handleTest ./rshim.nix { };
   rspamd = handleTest ./rspamd.nix { };
   rspamd-trainer = runTest ./rspamd-trainer.nix;

nixos/tests/rqbit.nix

@@ -0,0 +1,30 @@
+import ./make-test-python.nix (
+  { pkgs, ... }:
+  let
+    port = 3030;
+  in
+  {
+    name = "rqbit";
+    meta = {
+      maintainers = with pkgs.lib.maintainers; [ CodedNil ];
+    };
+
+    nodes.machine =
+      { pkgs, ... }:
+      {
+        services.rqbit = {
+          httpPort = port;
+          enable = true;
+          openFirewall = true;
+        };
+      };
+
+    testScript = /* python */ ''
+      machine.start()
+      machine.wait_for_unit("rqbit.service")
+      machine.wait_for_open_port(${toString port})
+
+      machine.succeed("curl --fail http://localhost:${toString port}")
+    '';
+  }
+)

pkgs/by-name/rq/rqbit/package.nix

@@ -8,6 +8,7 @@
   buildNpmPackage,
   nodejs,
   nix-update-script,
+  nixosTests,
 }:
 let
   pname = "rqbit";
@@ -62,13 +63,15 @@ rustPlatform.buildRustPackage {
 
   doCheck = false;
 
-  passthru.webui = rqbit-webui;
-
-  passthru.updateScript = nix-update-script {
-    extraArgs = [
-      "--subpackage"
-      "webui"
-    ];
+  passthru = {
+    webui = rqbit-webui;
+    updateScript = nix-update-script {
+      extraArgs = [
+        "--subpackage"
+        "webui"
+      ];
+    };
+    tests.testService = nixosTests.rqbit;
   };
 
   meta = {