Automate changing the vSphere 6 Platform Services Controller IP address (and vRealize Automation)
Written by Sam McGeownNote: This falls under the “I don’t think this is supported” category – use this method at your own peril!
As part of some testing I’ve been doing for vRealize Automation DR scenarios, I wanted to test changing the IP address of a HA PSC pair using a script (think SRM failover to a new subnet).
What I didn’t want to do was simply edit the connections directly – quite often with the VMware appliances there are scripts on start-up to ensure the configuration is correct and consistent – what I wanted was to be able to find a more supported and reliable way.
Fortunately the VAMI scripts are deployed on most appliances and are included on the PSC. I was able to work out a process (mostly by trial and error!) of getting the IP change to stick.
I successfully used the the Guest Script Manager package from the VMware Center of Excellence to store and execute the script via vRealize Orchestrator, as well as using a bash script actually on the host. This worked during my testing to modify both the IP addresses in a PSC HA Cluster, and allowed (with some DNS changes) the fail-over to a completely different subnet.