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