FWIW, we ended up going with the openshift-install tool provided by redhat instead of this terraform repo because
While this repo has fairly recent commits, the level of activity here the past 5 weeks has been near zero
Using the default settings to spin up an openshift cluster with this repo, we created a cluster that we were unable to access, and the documentation/resources around troubleshooting and expected behavior are all very sparse
I've corrected a few out of date descriptions, added one for infra_count, and removed a reference to Azure
I'm happy to take suggestions for tweaks here.