827bd96b2b
nixos/ntfy-sh: clean up DynamicUser workarounds
124 lines
3.4 KiB
Nix
124 lines
3.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.ntfy-sh;
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settingsFormat = pkgs.formats.yaml { };
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in
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{
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options.services.ntfy-sh = {
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enable = mkEnableOption (mdDoc "[ntfy-sh](https://ntfy.sh), a push notification service");
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package = mkPackageOption pkgs "ntfy-sh" { };
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user = mkOption {
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default = "ntfy-sh";
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type = types.str;
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description = lib.mdDoc "User the ntfy-sh server runs under.";
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};
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group = mkOption {
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default = "ntfy-sh";
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type = types.str;
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description = lib.mdDoc "Primary group of ntfy-sh user.";
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};
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settings = mkOption {
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type = types.submodule {
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freeformType = settingsFormat.type;
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options = {
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base-url = mkOption {
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type = types.str;
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example = "https://ntfy.example";
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description = lib.mdDoc ''
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Public facing base URL of the service
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This setting is required for any of the following features:
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- attachments (to return a download URL)
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- e-mail sending (for the topic URL in the email footer)
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- iOS push notifications for self-hosted servers
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(to calculate the Firebase poll_request topic)
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- Matrix Push Gateway (to validate that the pushkey is correct)
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'';
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};
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};
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};
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default = { };
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example = literalExpression ''
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{
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listen-http = ":8080";
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}
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'';
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description = mdDoc ''
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Configuration for ntfy.sh, supported values are [here](https://ntfy.sh/docs/config/#config-options).
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'';
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};
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};
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config =
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let
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configuration = settingsFormat.generate "server.yml" cfg.settings;
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in
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mkIf cfg.enable {
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# to configure access control via the cli
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environment = {
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etc."ntfy/server.yml".source = configuration;
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systemPackages = [ cfg.package ];
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};
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services.ntfy-sh.settings = {
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auth-file = mkDefault "/var/lib/ntfy-sh/user.db";
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listen-http = mkDefault "127.0.0.1:2586";
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attachment-cache-dir = mkDefault "/var/lib/ntfy-sh/attachments";
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cache-file = mkDefault "/var/lib/ntfy-sh/cache-file.db";
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};
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systemd.services.ntfy-sh = {
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description = "Push notifications server";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/ntfy serve -c ${configuration}";
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User = cfg.user;
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StateDirectory = "ntfy-sh";
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DynamicUser = true;
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AmbientCapabilities = "CAP_NET_BIND_SERVICE";
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PrivateTmp = true;
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NoNewPrivileges = true;
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CapabilityBoundingSet = "CAP_NET_BIND_SERVICE";
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ProtectSystem = "full";
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ProtectKernelTunables = true;
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ProtectKernelModules = true;
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ProtectKernelLogs = true;
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ProtectControlGroups = true;
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PrivateDevices = true;
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RestrictSUIDSGID = true;
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RestrictNamespaces = true;
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RestrictRealtime = true;
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MemoryDenyWriteExecute = true;
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# Upstream Recommandation
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LimitNOFILE = 20500;
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};
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};
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users.groups = optionalAttrs (cfg.group == "ntfy-sh") {
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ntfy-sh = { };
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};
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users.users = optionalAttrs (cfg.user == "ntfy-sh") {
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ntfy-sh = {
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isSystemUser = true;
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group = cfg.group;
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};
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};
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};
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}
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