Forum Discussion
F5_Dev_83066
Nimbostratus
NimbostratusDynamic Pool members from FQDN and monitoring during TTL.
I am trying to write an irule, to dynamically add members to pool by resolving FQDN names as we don’t have list of Ip addresses and Ips can be changed in future but not the FQDN. For DNS redundancy I ...
hooleylist
Cirrostratus
CirrostratusHi,
You can use RESOLV::lookup in an iRule to resolve the hostname to IP address(es). But you can't modify the BIG-IP configuration from an iRule. If you wanted to do this you could use a shell script and write the change to the pool using tmsh. You could run the script from cron or using an external monitor.
There's a related enhancement request to support name based load balancing using DNS so that TMM would do this for you. You could open a case with F5 Support to add your request to it. If you do, reference BZ353855.
Aaron