nixos/motioneye: init

(cherry picked from commit 0283946b36)

nixos/modules/module-list.nix

@@ -1556,6 +1556,7 @@
   ./services/video/go2rtc/default.nix
   ./services/video/mediamtx.nix
   ./services/video/mirakurun.nix
+  ./services/video/motioneye.nix
   ./services/video/photonvision.nix
   ./services/video/ustreamer.nix
   ./services/video/v4l2-relayd.nix

nixos/modules/services/video/motioneye.nix

@@ -0,0 +1,122 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.services.motioneye;
+in
+{
+  options.services.motioneye = {
+    enable = lib.mkEnableOption "motionEye";
+
+    packages = {
+      motioneye = lib.mkPackageOption pkgs "motioneye" { };
+      motion = lib.mkPackageOption pkgs "motion" { };
+      ffmpeg = lib.mkPackageOption pkgs "ffmpeg" { };
+    };
+
+    user = lib.mkOption {
+      type = lib.types.str;
+      default = "motioneye";
+      description = "User to run motionEye under.";
+    };
+
+    group = lib.mkOption {
+      type = lib.types.str;
+      default = "motioneye";
+      description = "Group to run motionEye under.";
+    };
+
+    settings = lib.mkOption {
+      type = lib.types.attrsOf lib.types.str;
+      default = { };
+      defaultText = lib.literalExpression /* nix */ ''
+        {
+          conf_path = lib.mkDefault "/var/lib/motioneye/conf";
+          run_path = lib.mkDefault "/run/motioneye";
+          log_path = lib.mkDefault "/var/log/motioneye";
+          media_path = lib.mkDefault "/var/lib/motioneye/media";
+        }
+      '';
+      description = ''
+        Configuration to put in motioneye.conf.
+        See <https://github.com/motioneye-project/motioneye/wiki/Configuration-File>  for more details.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.motioneye.settings = {
+      conf_path = lib.mkDefault "/var/lib/motioneye/conf";
+      run_path = lib.mkDefault "/run/motioneye";
+      log_path = lib.mkDefault "/var/log/motioneye";
+      media_path = lib.mkDefault "/var/lib/motioneye/media";
+    };
+
+    users = {
+      groups.${cfg.group} = { };
+      users.${cfg.user} = {
+        inherit (cfg) group;
+        isSystemUser = true;
+
+        # allow v4l access
+        extraGroups = [ "video" ];
+      };
+    };
+
+    systemd.tmpfiles.settings.motioneye =
+      let
+        config = {
+          d = {
+            inherit (cfg) user group;
+            mode = "0750";
+          };
+        };
+      in
+      {
+        "${cfg.settings.conf_path}" = config;
+        "${cfg.settings.run_path}" = config;
+        "${cfg.settings.log_path}" = config;
+        "${cfg.settings.media_path}" = config;
+      };
+
+    environment.etc."motioneye/motioneye.conf".text = lib.concatMapAttrsStringSep "\n" (
+      key: value: "${key} ${lib.escapeShellArg value}"
+    ) cfg.settings;
+
+    # https://github.com/motioneye-project/motioneye/blob/main/motioneye/extra/motioneye.systemd
+    systemd.services.motioneye = {
+      description = "motionEye Server";
+      after = [
+        "network.target"
+        "local-fs.target"
+        "remote-fs.target"
+      ];
+      wantedBy = [ "multi-user.target" ];
+      path =
+        (with pkgs; [
+          which
+          v4l-utils
+        ])
+        ++ [
+          cfg.packages.motion
+          cfg.packages.ffmpeg
+        ];
+      restartTriggers = [
+        config.environment.etc."motioneye/motioneye.conf".source
+      ];
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+        RuntimeDirectory = "motioneye";
+        LogsDirectory = "motioneye";
+        StateDirectory = "motioneye";
+        ExecStart = "${lib.getExe' cfg.packages.motioneye "meyectl"} startserver -c /etc/motioneye/motioneye.conf";
+        Restart = "on-abort";
+      };
+    };
+  };
+}