Corosync, Pacemaker, PCS and Virtualmin/Cloudmin

Hey there, just a quick one, maybe the moderators can also throw a word or two: did anyone try to use Virtualmin and Cloudmin (this includes Webmin and Usermin) on a HA cluster (Centos 6 if not 7) with corosync, pacemaker, pcs? Preferabily without DRBD, using an external unified storage device (NAS/SAN).

Will this even work? How did you achieved this, in a few words/well, as much as you can share?

Any explanation is welcome as there isn't a bit of information (none that I could find) on the web.