{ config, lib, pkgs, ... }: with lib; let cfg = config.services.ntfy-sh; settingsFormat = pkgs.formats.yaml { }; in { options.services.ntfy-sh = { enable = mkEnableOption (mdDoc "[ntfy-sh](https://ntfy.sh), a push notification service"); package = mkPackageOption pkgs "ntfy-sh" { }; user = mkOption { default = "ntfy-sh"; type = types.str; description = lib.mdDoc "User the ntfy-sh server runs under."; }; group = mkOption { default = "ntfy-sh"; type = types.str; description = lib.mdDoc "Primary group of ntfy-sh user."; }; settings = mkOption { type = types.submodule { freeformType = settingsFormat.type; options = { base-url = mkOption { type = types.str; example = "https://ntfy.example"; description = lib.mdDoc '' Public facing base URL of the service This setting is required for any of the following features: - attachments (to return a download URL) - e-mail sending (for the topic URL in the email footer) - iOS push notifications for self-hosted servers (to calculate the Firebase poll_request topic) - Matrix Push Gateway (to validate that the pushkey is correct) ''; }; }; }; default = { }; example = literalExpression '' { listen-http = ":8080"; } ''; description = mdDoc '' Configuration for ntfy.sh, supported values are [here](https://ntfy.sh/docs/config/#config-options). ''; }; }; config = let configuration = settingsFormat.generate "server.yml" cfg.settings; in mkIf cfg.enable { # to configure access control via the cli environment = { etc."ntfy/server.yml".source = configuration; systemPackages = [ cfg.package ]; }; services.ntfy-sh.settings = { auth-file = mkDefault "/var/lib/ntfy-sh/user.db"; listen-http = mkDefault "127.0.0.1:2586"; attachment-cache-dir = mkDefault "/var/lib/ntfy-sh/attachments"; cache-file = mkDefault "/var/lib/ntfy-sh/cache-file.db"; }; systemd.tmpfiles.rules = [ "f ${cfg.settings.auth-file} 0600 ${cfg.user} ${cfg.group} - -" "d ${cfg.settings.attachment-cache-dir} 0700 ${cfg.user} ${cfg.group} - -" "f ${cfg.settings.cache-file} 0600 ${cfg.user} ${cfg.group} - -" ]; systemd.services.ntfy-sh = { description = "Push notifications server"; wantedBy = [ "multi-user.target" ]; after = [ "network.target" ]; serviceConfig = { ExecStart = "${cfg.package}/bin/ntfy serve -c ${configuration}"; User = cfg.user; StateDirectory = "ntfy-sh"; DynamicUser = true; AmbientCapabilities = "CAP_NET_BIND_SERVICE"; PrivateTmp = true; NoNewPrivileges = true; CapabilityBoundingSet = "CAP_NET_BIND_SERVICE"; ProtectSystem = "full"; ProtectKernelTunables = true; ProtectKernelModules = true; ProtectKernelLogs = true; ProtectControlGroups = true; PrivateDevices = true; RestrictSUIDSGID = true; RestrictNamespaces = true; RestrictRealtime = true; MemoryDenyWriteExecute = true; # Upstream Recommandation LimitNOFILE = 20500; }; }; users.groups = optionalAttrs (cfg.group == "ntfy-sh") { ntfy-sh = { }; }; users.users = optionalAttrs (cfg.user == "ntfy-sh") { ntfy-sh = { isSystemUser = true; group = cfg.group; }; }; }; }