I'm setting up a simple 3rd VM to join my HA Cluster. This VM shouldn't ever run any services, except participate in the Quorum vote. In Galera Cluster there is a nice daemon for this, garbd, but for Pacemaker, it seems that its all done via constraints, which means I have to configure everything manually not to run on the 3rd node. This seems overkill and overly complicated. I wonder if I can have a node join a cluster in standby mode and this would simplify this process and work as a 3rd quorum node.
The situation with Pacemaker/Corosync etc gets even more complicated with all the different stacks that exist, I'm wondering if a newer simplified method has been developed that is burried deep in google.
I'm using CentOS 7 configuring everything with PCSD. (which is great, except lots of guides use crm etc)
Any suggestions on a simple 3rd VM for Quorom Votes in a Pacemaker HA Cluster Setup?