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nixpkgs/nixos/modules/services/misc/ntfy-sh.nix
2022-10-19 02:20:16 +02:00

101 lines
2.5 KiB
Nix

{ 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 = mkOption {
type = types.package;
default = pkgs.ntfy-sh;
defaultText = literalExpression "pkgs.ntfy-sh";
description = mdDoc "The ntfy.sh package to use.";
};
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; };
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 ];
};
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;
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;
};
};
users.groups = optionalAttrs (cfg.group == "ntfy-sh") {
ntfy-sh = { };
};
users.users = optionalAttrs (cfg.user == "ntfy-sh") {
ntfy-sh = {
isSystemUser = true;
group = cfg.group;
};
};
};
}