certificate expiration monitoring - all partitions

Hi, we have Big IP v 11.5.4 and we already tried to monitor and modified file /config/user_alert.conf file like this:

alert CERTIFICATE_EXPIRED "Certificate (.*) expired" { snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.300"; email toaddress="administrator@administrator.com" body="Certificate Expired on " }

This work fine, but we use for every service NEW Partition and this script only work with /Common partition so from other partition where certificates are stored, we don´t receive any expiration notifications. Could please suggest how to modify this script or use any automation tool to make this work? Many thanks.