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# Zabbix server daemon.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.zabbixServer;
stateDir = "/var/run/zabbix";
logDir = "/var/log/zabbix";
libDir = "/var/lib/zabbix";
pidFile = "${stateDir}/zabbix_server.pid";
configFile = pkgs.writeText "zabbix_server.conf"
''
LogFile = ${logDir}/zabbix_server
PidFile = ${pidFile}
${optionalString (cfg.dbServer != "localhost") ''
DBHost = ${cfg.dbServer}
''}
DBName = zabbix
DBUser = zabbix
${optionalString (cfg.dbPassword != "") ''
DBPassword = ${cfg.dbPassword}
''}
'';
useLocalPostgres = cfg.dbServer == "localhost" || cfg.dbServer == "";
in
{
###### interface
options = {
services.zabbixServer.enable = mkOption {
default = false;
description = ''
Whether to run the Zabbix server on this machine.
'';
};
services.zabbixServer.dbServer = mkOption {
default = "localhost";
description = ''
Hostname or IP address of the database server.
Use an empty string ("") to use peer authentication.
'';
};
services.zabbixServer.dbPassword = mkOption {
default = "";
description = "Password used to connect to the database server.";
};
};
###### implementation
config = mkIf cfg.enable {
services.postgresql.enable = useLocalPostgres;
users.extraUsers = singleton
{ name = "zabbix";
uid = config.ids.uids.zabbix;
description = "Zabbix daemon user";
};
systemd.services."zabbix-server" =
{ description = "Zabbix Server";
wantedBy = [ "multi-user.target" ];
after = optional useLocalPostgres "postgresql.service";
preStart =
''
mkdir -m 0755 -p ${stateDir} ${logDir} ${libDir}
chown zabbix ${stateDir} ${logDir} ${libDir}
if ! test -e "${libDir}/db-created"; then
${pkgs.postgresql}/bin/createuser --no-superuser --no-createdb --no-createrole zabbix || true
${pkgs.postgresql}/bin/createdb --owner zabbix zabbix || true
cat ${pkgs.zabbix.server}/share/zabbix/db/schema/postgresql.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
cat ${pkgs.zabbix.server}/share/zabbix/db/data/images_pgsql.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
cat ${pkgs.zabbix.server}/share/zabbix/db/data/data.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
touch "${libDir}/db-created"
fi
'';
path = [ pkgs.nettools ];
serviceConfig.ExecStart = "@${pkgs.zabbix.server}/sbin/zabbix_server zabbix_server --config ${configFile}";
serviceConfig.Type = "forking";
serviceConfig.Restart = "always";
serviceConfig.RestartSec = 2;
serviceConfig.PIDFile = pidFile;
};
};
}
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