# Zabbix agent daemon. { config, lib, pkgs, ... }: with lib; let cfg = config.services.zabbixAgent; zabbix = cfg.package; stateDir = "/var/run/zabbix"; logDir = "/var/log/zabbix"; pidFile = "${stateDir}/zabbix_agentd.pid"; configFile = pkgs.writeText "zabbix_agentd.conf" '' Server = ${cfg.server} LogFile = ${logDir}/zabbix_agentd PidFile = ${pidFile} StartAgents = 1 ${config.services.zabbixAgent.extraConfig} ''; in { ###### interface options = { services.zabbixAgent = { enable = mkOption { default = false; description = '' Whether to run the Zabbix monitoring agent on this machine. It will send monitoring data to a Zabbix server. ''; }; package = mkOption { type = types.attrs; # Note: pkgs.zabbixXY isn't a derivation, but an attrset of { server = ...; agent = ...; }. default = pkgs.zabbix; defaultText = "pkgs.zabbix"; example = literalExample "pkgs.zabbix34"; description = '' The Zabbix package to use. ''; }; server = mkOption { default = "127.0.0.1"; description = '' The IP address or hostname of the Zabbix server to connect to. ''; }; extraConfig = mkOption { default = ""; type = types.lines; description = '' Configuration that is injected verbatim into the configuration file. ''; }; }; }; ###### implementation config = mkIf cfg.enable { users.users = mkIf (!config.services.zabbixServer.enable) (singleton { name = "zabbix"; uid = config.ids.uids.zabbix; description = "Zabbix daemon user"; }); systemd.services."zabbix-agent" = { description = "Zabbix Agent"; wantedBy = [ "multi-user.target" ]; path = [ pkgs.nettools ]; preStart = '' mkdir -m 0755 -p ${stateDir} ${logDir} chown zabbix ${stateDir} ${logDir} ''; serviceConfig.ExecStart = "@${zabbix.agent}/sbin/zabbix_agentd zabbix_agentd --config ${configFile}"; serviceConfig.Type = "forking"; serviceConfig.RemainAfterExit = true; serviceConfig.Restart = "always"; serviceConfig.RestartSec = 2; }; environment.systemPackages = [ zabbix.agent ]; }; }