NAGIOSTIME \[%{NUMBER:epochtime}\]

NAGIOS_SERVICE_ALERT SERVICE ALERT: %{IPORHOST:hostname};%{DATA:checkname};%{DATA:state};%{DATA:statelevel};%{NUMBER:attempt};%{GREEDYDATA:message}
NAGIOS_SERVICE_FLAPPING_ALERT SERVICE FLAPPING ALERT: %{IPORHOST:hostname};%{DATA:checkname};%{DATA:state};%{GREEDYDATA:message}
NAGIOS_SERVICE_NOTIFICATION SERVICE NOTIFICATION: %{DATA:notifyname};%{IPORHOST:hostname};%{DATA:checkname};%{DATA:state};%{DATA:contact};%{GREEDYDATA:message}

NAGIOSLOGLINE %{NAGIOSTIME} (?:%{NAGIOS_SERVICE_ALERT}|%{NAGIOS_SERVICE_FLAPPING_ALERT}|%{NAGIOS_SERVICE_NOTIFICATION})