boinc service: init

nixos/modules/services/computing/boinc/client.nix

@@ -0,0 +1,88 @@
+{config, lib, pkgs, ...}:
+
+with lib;
+
+let
+  cfg = config.services.boinc;
+  allowRemoteGuiRpcFlag = optionalString cfg.allowRemoteGuiRpc "--allow_remote_gui_rpc";
+
+in
+  {
+    options.services.boinc = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        example = true;
+        description = ''
+          Whether to enable the BOINC distributed computing client. If this
+          option is set to true, the boinc_client daemon will be run as a
+          background service. The boinccmd command can be used to control the
+          daemon.
+        '';
+      };
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.boinc;
+        defaultText = "pkgs.boinc";
+        description = ''
+          Which BOINC package to use.
+        '';
+      };
+
+      dataDir = mkOption {
+        type = types.path;
+        default = "/var/lib/boinc";
+        description = ''
+          The directory in which to store BOINC's configuration and data files.
+        '';
+      };
+
+      allowRemoteGuiRpc = mkOption {
+        type = types.bool;
+        default = false;
+        example = true;
+        description = ''
+          If set to true, any remote host can connect to and control this BOINC
+          client (subject to password authentication). If instead set to false,
+          only the hosts listed in <varname>dataDir</varname>/remote_hosts.cfg will be allowed to
+          connect.
+
+          See also: <ulink url="http://boinc.berkeley.edu/wiki/Controlling_BOINC_remotely#Remote_access"/>
+        '';
+      };
+    };
+
+    config = mkIf cfg.enable {
+      environment.systemPackages = [cfg.package];
+
+      users.users.boinc = {
+        createHome = false;
+        description = "BOINC Client";
+        home = cfg.dataDir;
+        isSystemUser = true;
+      };
+
+      systemd.services.boinc = {
+        description = "BOINC Client";
+        after = ["network.target" "local-fs.target"];
+        wantedBy = ["multi-user.target"];
+        preStart = ''
+          mkdir -p ${cfg.dataDir}
+          chown boinc ${cfg.dataDir}
+        '';
+        script = ''
+          ${cfg.package}/bin/boinc_client --dir ${cfg.dataDir} --redirectio ${allowRemoteGuiRpcFlag}
+        '';
+        serviceConfig = {
+          PermissionsStartOnly = true; # preStart must be run as root
+          User = "boinc";
+          Nice = 10;
+        };
+      };
+    };
+
+    meta = {
+      maintainers = with lib.maintainers; [kierdavis];
+    };
+  }