nixos/services/authelia.nix

# services/authelia.nix — Native Authelia SSO
# Secrets live in /var/secrets/authelia (root:authelia-main, 640) — see readme.
{ config, lib, pkgs, ... }:
{
  config = lib.mkIf (config.networking.hostName == "FredOS-Mediaserver") {

    services.authelia.instances.main = {
      enable = true;

      secrets = {
        jwtSecretFile = "/var/secrets/authelia/jwt_secret";
        storageEncryptionKeyFile = "/var/secrets/authelia/storage_encryption_key";
        sessionSecretFile = "/var/secrets/authelia/session_secret";
      };

      settings = {
        theme = "dark";
        server.address = "tcp://127.0.0.1:9091/";

        log = {
          level = "info";
          format = "text";
        };

        authentication_backend.file.path = "/var/lib/authelia-main/users_database.yml";

        access_control = {
          default_policy = "deny";
          rules = [
            { domain = "frigate.nordhammer.it";  policy = "one_factor"; }
            { domain = "camera.nordhammer.it";   policy = "one_factor"; }
            { domain = "homepage.nordhammer.it"; policy = "one_factor"; }
            { domain = "7dtd.nordhammer.it";     policy = "one_factor"; }
            { domain = "adguard.nordhammer.it";  policy = "one_factor"; }
            { domain = "sonarr.nordhammer.it";   policy = "one_factor"; }
            { domain = "radarr.nordhammer.it";   policy = "one_factor"; }
            { domain = "bazarr.nordhammer.it";   policy = "one_factor"; }
            { domain = "prowlarr.nordhammer.it"; policy = "one_factor"; }
            { domain = "torrent.nordhammer.it";  policy = "one_factor"; }
            { domain = "profilarr.nordhammer.it"; policy = "one_factor"; }
            { domain = "sabnzbd.nordhammer.it";   policy = "one_factor"; }
            { domain = "code.nordhammer.it";       policy = "one_factor"; }
            { domain = "notes.nordhammer.it";     policy = "one_factor"; }
            { domain = "neko.nordhammer.it";      policy = "one_factor"; }
          ];
        };

        session = {
          cookies = [{
            domain = "nordhammer.it";
            authelia_url = "https://auth.nordhammer.it";
          }];
          expiration = "12h";
          inactivity = "2h";
        };

        storage.local.path = "/var/lib/authelia-main/db.sqlite3";
        notifier.filesystem.filename = "/var/lib/authelia-main/notification.txt";
      };
    };
  };
}