nixpkgs/modules/services/monitoring/zabbix-agent.nix

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# Zabbix agent daemon.
{config, pkgs, ...}:
###### interface
let
inherit (pkgs.lib) mkOption;
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.
'';
};
};
};
};
in
###### implementation
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}
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StartAgents = 5
'';
user = {
name = "zabbix";
uid = config.ids.uids.zabbix;
description = "Zabbix daemon user";
};
job = {
name = "zabbix-agent";
job = ''
start on network-interfaces/started
stop on network-interfaces/stop
description "Zabbix agent daemon"
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start script
mkdir -m 0755 -p ${stateDir} ${logDir}
chown zabbix ${stateDir} ${logDir}
export PATH=${pkgs.nettools}/bin:$PATH
${pkgs.zabbixAgent}/sbin/zabbix_agentd --config ${configFile}
end script
respawn sleep 100000
stop script
# !!! this seems to leave processes behind.
#pid=$(cat ${pidFile})
#if test -n "$pid"; then
# kill $pid
#fi
# So instead kill the agent in a brutal fashion.
while ${pkgs.procps}/bin/pkill -u zabbix zabbix_agentd; do true; done
end script
'';
};
ifEnable = pkgs.lib.ifEnable cfg.enable;
in
{
require = [
# ../upstart-jobs/default.nix
# ../system/user.nix # users = { .. }
options
];
services = {
extraJobs = ifEnable [job];
};
users = {
extraUsers = ifEnable [user];
};
}