nixpkgs/nixos/modules/services/home-automation/govee2mqtt.nix
2024-02-07 10:39:23 +01:00

90 lines
2.6 KiB
Nix

{ config, lib, pkgs, ... }:
let
cfg = config.services.govee2mqtt;
in {
meta.maintainers = with lib.maintainers; [ SuperSandro2000 ];
options.services.govee2mqtt = {
enable = lib.mkEnableOption "Govee2MQTT";
package = lib.mkPackageOption pkgs "govee2mqtt" { };
user = lib.mkOption {
type = lib.types.str;
default = "govee2mqtt";
description = "User under which Govee2MQTT should run.";
};
group = lib.mkOption {
type = lib.types.str;
default = "govee2mqtt";
description = "Group under which Govee2MQTT should run.";
};
environmentFile = lib.mkOption {
type = lib.types.path;
example = "/var/lib/govee2mqtt/govee2mqtt.env";
description = ''
Environment file as defined in {manpage}`systemd.exec(5)`.
See upstream documentation <https://github.com/wez/govee2mqtt/blob/main/docs/CONFIG.md>.
'';
};
};
config = lib.mkIf cfg.enable {
users = {
groups.${cfg.group} = { };
users.${cfg.user} = {
description = "Govee2MQTT service user";
inherit (cfg) group;
isSystemUser = true;
};
};
systemd.services.govee2mqtt = {
description = "Govee2MQTT Service";
wantedBy = [ "multi-user.target" ];
after = [ "networking.target" ];
serviceConfig = {
CacheDirectory = "govee2mqtt";
Environment = [
"GOVEE_CACHE_DIR=/var/cache/govee2mqtt"
];
EnvironmentFile = cfg.environmentFile;
ExecStart = "${lib.getExe cfg.package} serve --govee-iot-key=/var/lib/govee2mqtt/iot.key --govee-iot-cert=/var/lib/govee2mqtt/iot.cert"
+ " --amazon-root-ca=${pkgs.cacert.unbundled}/etc/ssl/certs/Amazon_Root_CA_1:66c9fcf99bf8c0a39e2f0788a43e696365bca.crt";
Group = cfg.group;
Restart = "on-failure";
StateDirectory = "govee2mqtt";
User = cfg.user;
# Hardening
AmbientCapabilities = "";
CapabilityBoundingSet = "";
LockPersonality = true;
NoNewPrivileges = true;
PrivateDevices = true;
PrivateMounts = true;
PrivateTmp = true;
PrivateUsers = true;
ProcSubset = "pid";
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
ProtectSystem = "strict";
RemoveIPC = true;
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
};
};
};
}