NixOS 和 NixOps 声明式组管理和服务

Question

是否可以在 NixOS 和 NixOps 中以声明的方式管理组？

我希望能够在 中创建新组configuration.nix并向其中添加用户。我找不到任何可用选项来执行此操作，并且手动添加的组被新的 nixops 部署删除时出现问题。

我尝试过的方法

我尝试修改文件中服务创建的用户组configuration.nix：

system.activationScripts = {
  mediaGroup = ''
    echo "Adding `media` group"
    getent group media || groupadd media
  '';
};

users.users.plex.extraGroups = [ "media" ];
users.users.radarr.extraGroups = [ "media" ];
users.users.sonarr.extraGroups = [ "media" ];
users.users.deluge.extraGroups = [ "media" ];

还可以通过修改服务 plex、radarr、sonarr 和 deluge 来采用附加组选项：

{ config, pkgs, lib, ... }:

with lib;

let
  cfg = config.services.sonarr;
in
{
  options = {
    services.sonarr = {
      openFirewall = mkOption {
        type = types.bool;
        default = false;
        description = ''
          Open ports in the firewall for the media server
        '';
      };

      user = mkOption {
        type = types.str;
        default = "sonarr";
        description = "User account under which sonarr runs.";
      };

      group = mkOption {
        type = types.str;
        default = "sonarr";
        description = "Group under which sonarr runs.";
      };

    };
  };

  config = mkIf cfg.enable {
    systemd.services.sonarr = pkgs.lib.mkForce {
      description = "Sonarr";
      after = [ "network.target" ];
      wantedBy = [ "multi-user.target" ];
      preStart = ''
        test -d /var/lib/sonarr/ || {
          echo "Creating sonarr data directory in /var/lib/sonarr/"
          mkdir -p /var/lib/sonarr/
        }
        chown -R ${cfg.user}:${cfg.group} /var/lib/sonarr/
        chmod 0700 /var/lib/sonarr/
      '';

      serviceConfig = {
        Type = "simple";
        User = cfg.user;
        Group = cfg.group;
        PermissionsStartOnly = "true";
        ExecStart = "${pkgs.sonarr}/bin/NzbDrone --no-browser";
        Restart = "on-failure";
      };
    };

     networking.firewall = mkIf cfg.openFirewall {
      allowedTCPPorts = [ 8989 ];
    };

    users.users = mkIf (cfg.user == "sonarr") {
      sonarr = pkgs.lib.mkForce {
        uid = config.ids.uids.sonarr;
        home = "/var/lib/sonarr";
        group = cfg.group;
        extraGroups = [ "media" ];
      };
    };

    users.groups = mkIf (cfg.group == "sonarr") {
      sonarr = pkgs.lib.mkForce {
        gid = config.ids.gids.sonarr;
      };
    };

  };
}

每次nixops deploy我都会得到：

my_server...> activating the configuration...                                                                                                                                         
my_server...> removing group ‘media’                                                                                                                                                  
my_server...> warning: user ‘media’ has unknown group ‘media’                                                                                                                         
my_server...> warning: user ‘plex’ has unknown group ‘media’                                                                                                                          
my_server...> warning: user ‘radarr’ has unknown group ‘media’                                                                                                                        
my_server...> warning: user ‘sonarr’ has unknown group ‘media’                                                                                                                        

如果我检查每个用户组，即使我手动将用户添加到组中，也会得到以下信息usermod：

[root@my_server:/var/lib]# groups sonarr
sonarr : nogroup

语境

这些服务之间缺少共享组，导致权限问题，导致 sonarr 和 radarr 无法自动将文件从 deluge 复制到 plex 媒体位置。我认为这是它工作的唯一问题，我还配置了 deluge 服务以使用 of umask，002权限似乎是正确的。

[root@my_server:/var/lib/deluge/Downloads]# ls -l && cd MovieFolder && ls -l
drwxrwxr-- 2 deluge media 4096 Aug 26 11:39  MovieFolder
-rw-rw-r-- 1 deluge media 2420763104 Aug 26 11:08  TheMovie.mkv

还有来自 sonarr 和 radarr 的消息：

No files found are eligible for import in /var/lib/deluge/Downloads/MovieFolder

以下是一个示例日志消息：

18-8-26 12:47:51.3|Error|DownloadedEpisodesImportService|Import failed, path does not exist or is not accessible by Sonarr: /var/lib/deluge/Downloads/MovieFolder

Answer 1

media您还需要定义该组。

首先明确定义它：

users.groups.media = {};
users.users.plex.extraGroups = [ "media" ];

或者立即将成员添加到群组：

users.groups.media.members = [ ... ];