1 files changed, 163 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/networking/sunshine.nix b/nixpkgs/nixos/modules/services/networking/sunshine.nix
new file mode 100644
index 000000000000..0749eaee95d8
--- /dev/null
+++ b/nixpkgs/nixos/modules/services/networking/sunshine.nix
@@ -0,0 +1,163 @@
+{ config, lib, pkgs, utils, ... }:
+let
+  inherit (lib) mkEnableOption mkPackageOption mkOption mkIf mkDefault types optionals getExe;
+  inherit (utils) escapeSystemdExecArgs;
+  cfg = config.services.sunshine;
+
+  # ports used are offset from a single base port, see https://docs.lizardbyte.dev/projects/sunshine/en/latest/about/advanced_usage.html#port
+  generatePorts = port: offsets: map (offset: port + offset) offsets;
+  defaultPort = 47989;
+
+  appsFormat = pkgs.formats.json { };
+  settingsFormat = pkgs.formats.keyValue { };
+
+  appsFile = appsFormat.generate "apps.json" cfg.applications;
+  configFile = settingsFormat.generate "sunshine.conf" cfg.settings;
+in
+{
+  options.services.sunshine = with types; {
+    enable = mkEnableOption "Sunshine, a self-hosted game stream host for Moonlight";
+    package = mkPackageOption pkgs "sunshine" { };
+    openFirewall = mkOption {
+      type = bool;
+      default = false;
+      description = ''
+        Whether to automatically open ports in the firewall.
+      '';
+    };
+    capSysAdmin = mkOption {
+      type = bool;
+      default = false;
+      description = ''
+        Whether to give the Sunshine binary CAP_SYS_ADMIN, required for DRM/KMS screen capture.
+      '';
+    };
+    autoStart = mkOption {
+      type = bool;
+      default = true;
+      description = ''
+        Whether sunshine should be started automatically.
+      '';
+    };
+    settings = mkOption {
+      default = { };
+      description = ''
+        Settings to be rendered into the configuration file. If this is set, no configuration is possible from the web UI.
+
+        See https://docs.lizardbyte.dev/projects/sunshine/en/latest/about/advanced_usage.html#configuration for syntax.
+      '';
+      example = ''
+        {
+          sunshine_name = "nixos";
+        }
+      '';
+      type = submodule (settings: {
+        freeformType = settingsFormat.type;
+        options.port = mkOption {
+          type = port;
+          default = defaultPort;
+          description = ''
+            Base port -- others used are offset from this one, see https://docs.lizardbyte.dev/projects/sunshine/en/latest/about/advanced_usage.html#port for details.
+          '';
+        };
+      });
+    };
+    applications = mkOption {
+      default = { };
+      description = ''
+        Configuration for applications to be exposed to Moonlight. If this is set, no configuration is possible from the web UI, and must be by the `settings` option.
+      '';
+      example = ''
+        {
+          env = {
+            PATH = "$(PATH):$(HOME)/.local/bin";
+          };
+          apps = [
+            {
+              name = "1440p Desktop";
+              prep-cmd = [
+                {
+                  do = "''${pkgs.kdePackages.libkscreen}/bin/kscreen-doctor output.DP-4.mode.2560x1440@144";
+                  undo = "''${pkgs.kdePackages.libkscreen}/bin/kscreen-doctor output.DP-4.mode.3440x1440@144";
+                }
+              ];
+              exclude-global-prep-cmd = "false";
+              auto-detach = "true";
+            }
+          ];
+        }
+      '';
+      type = submodule {
+        options = {
+          env = mkOption {
+            default = { };
+            description = ''
+              Environment variables to be set for the applications.
+            '';
+            type = attrsOf str;
+          };
+          apps = mkOption {
+            default = [ ];
+            description = ''
+              Applications to be exposed to Moonlight.
+            '';
+            type = listOf attrs;
+          };
+        };
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.sunshine.settings.file_apps = mkIf (cfg.applications.apps != [ ]) "${appsFile}";
+
+    environment.systemPackages = [
+      cfg.package
+    ];
+
+    networking.firewall = mkIf cfg.openFirewall {
+      allowedTCPPorts = generatePorts cfg.settings.port [ (-5) 0 1 21 ];
+      allowedUDPPorts = generatePorts cfg.settings.port [ 9 10 11 13 21 ];
+    };
+
+    boot.kernelModules = [ "uinput" ];
+
+    services.udev.packages = [ cfg.package ];
+
+    services.avahi = {
+      enable = mkDefault true;
+      publish = {
+        enable = mkDefault true;
+        userServices = mkDefault true;
+      };
+    };
+
+    security.wrappers.sunshine = mkIf cfg.capSysAdmin {
+      owner = "root";
+      group = "root";
+      capabilities = "cap_sys_admin+p";
+      source = getExe cfg.package;
+    };
+
+    systemd.user.services.sunshine = {
+      description = "Self-hosted game stream host for Moonlight";
+
+      wantedBy = mkIf cfg.autoStart [ "graphical-session.target" ];
+      partOf = [ "graphical-session.target" ];
+      wants = [ "graphical-session.target" ];
+      after = [ "graphical-session.target" ];
+
+      startLimitIntervalSec = 500;
+      startLimitBurst = 5;
+
+      serviceConfig = {
+        # only add configFile if an application or a setting other than the default port is set to allow configuration from web UI
+        ExecStart = escapeSystemdExecArgs ([
+          (if cfg.capSysAdmin then "${config.security.wrapperDir}/sunshine" else "${getExe cfg.package}")
+        ] ++ optionals (cfg.applications.apps != [ ] || (builtins.length (builtins.attrNames cfg.settings) > 1 || cfg.settings.port != defaultPort)) [ "${configFile}" ]);
+        Restart = "on-failure";
+        RestartSec = "5s";
+      };
+    };
+  };
+}