# Zabbix server daemon. { config, pkgs, ... }: with pkgs.lib; let 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} DBName = zabbix DBUser = zabbix ''; in { ###### interface options = { services.zabbixServer.enable = mkOption { default = false; description = '' Whether to run the Zabbix server on this machine. ''; }; }; ###### implementation config = mkIf config.services.zabbixServer.enable { services.postgresql.enable = true; users.extraUsers = singleton { name = "zabbix"; uid = config.ids.uids.zabbix; description = "Zabbix daemon user"; }; jobs.zabbix_server = { name = "zabbix-server"; description = "Zabbix server daemon"; startOn = "started postgresql"; stopOn = "stopping postgresql"; 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/data.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 '${pkgs.postgresql}/bin/psql zabbix' touch "${libDir}/db-created" fi ''; # Zabbix doesn't have an option not to daemonize, and doesn't # daemonize in a way that allows Upstart to track it. So to # make sure that we notice when it goes down, we start Zabbix # with an open connection to a fifo, with a `cat' on the other # side. If Zabbix dies, then `cat' will exit as well, so we # just monitor `cat'. script = '' export PATH=${pkgs.nettools}/bin:$PATH rm -f ${stateDir}/dummy mkfifo ${stateDir}/dummy cat ${stateDir}/dummy & pid=$! ${pkgs.zabbix.server}/sbin/zabbix_server --config ${configFile} 100>${stateDir}/dummy wait "$pid" ''; postStop = '' pid=$(cat ${pidFile} 2> /dev/null || true) (test -n "$pid" && kill "$pid") || true # Wait until they're really gone. while ${pkgs.procps}/bin/pkill -u zabbix zabbix_server; do true; done ''; }; }; }