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# Zabbix agent daemon.
{ config, pkgs, ... }:
with pkgs.lib;
let
cfg = config.services.zabbixAgent;
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.
'';
};
server = mkOption {
default = "127.0.0.1";
description = ''
The IP address or hostname of the Zabbix server to connect to.
'';
};
extraConfig = mkOption {
default = "";
description = ''
Configuration that is injected verbatim into the configuration file.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.extraUsers = 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} ${logDir}
'';
serviceConfig.ExecStart = "@${pkgs.zabbix.agent}/sbin/zabbix_agentd zabbix_agentd --config ${configFile}";
serviceConfig.Type = "forking";
serviceConfig.RemainAfterExit = true;
serviceConfig.Restart = "always";
serviceConfig.RestartSec = 2;
};
environment.systemPackages = [ pkgs.zabbix.agent ];
};
}
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