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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.zigbee2mqtt;
configJSON = pkgs.writeText "configuration.json"
(builtins.toJSON (recursiveUpdate defaultConfig cfg.config));
configFile = pkgs.runCommand "configuration.yaml" { preferLocalBuild = true; } ''
${pkgs.remarshal}/bin/json2yaml -i ${configJSON} -o $out
'';
# the default config contains all required settings,
# so the service starts up without crashing.
defaultConfig = {
homeassistant = false;
permit_join = false;
mqtt = {
base_topic = "zigbee2mqtt";
server = "mqtt://localhost:1883";
};
serial.port = "/dev/ttyACM0";
# put device configuration into separate file because configuration.yaml
# is copied from the store on startup
devices = "devices.yaml";
};
in
{
meta.maintainers = with maintainers; [ sweber ];
options.services.zigbee2mqtt = {
enable = mkEnableOption "enable zigbee2mqtt service";
package = mkOption {
description = "Zigbee2mqtt package to use";
default = pkgs.zigbee2mqtt.override {
dataDir = cfg.dataDir;
};
defaultText = "pkgs.zigbee2mqtt";
type = types.package;
};
dataDir = mkOption {
description = "Zigbee2mqtt data directory";
default = "/var/lib/zigbee2mqtt";
type = types.path;
};
config = mkOption {
default = {};
type = with types; nullOr attrs;
example = literalExample ''
{
homeassistant = config.services.home-assistant.enable;
permit_join = true;
serial = {
port = "/dev/ttyACM1";
};
}
'';
description = ''
Your <filename>configuration.yaml</filename> as a Nix attribute set.
'';
};
};
config = mkIf (cfg.enable) {
systemd.services.zigbee2mqtt = {
description = "Zigbee2mqtt Service";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
environment.ZIGBEE2MQTT_DATA = cfg.dataDir;
serviceConfig = {
ExecStart = "${cfg.package}/bin/zigbee2mqtt";
User = "zigbee2mqtt";
WorkingDirectory = cfg.dataDir;
Restart = "on-failure";
ProtectSystem = "strict";
ReadWritePaths = cfg.dataDir;
PrivateTmp = true;
RemoveIPC = true;
};
preStart = ''
cp --no-preserve=mode ${configFile} "${cfg.dataDir}/configuration.yaml"
'';
};
users.users.zigbee2mqtt = {
home = cfg.dataDir;
createHome = true;
group = "zigbee2mqtt";
extraGroups = [ "dialout" ];
uid = config.ids.uids.zigbee2mqtt;
};
users.groups.zigbee2mqtt.gid = config.ids.gids.zigbee2mqtt;
};
}
|
