Looking at recent CI metal-ipi CI jobs

Some of the boot strap failures seem to be because of master nodes failing to come up

Search https://search.dptools.openshift.org/?search=Got+0+worker+nodes%2C+%5B12%5D+master+nodes%2C&maxAge=336h&context=-1&type=build-log&name=metal-ipi&excludeName=&maxMatches=1&maxBytes=20971520&groupBy=none
43 results over the last 14 days 

e.g.
https://prow.ci.openshift.org/view/gs/test-platform-results/logs/periodic-ci-openshift-release-master-nightly-4.16-e2e-metal-ipi-upgrade-ovn-ipv6/1779842483996332032

level=error msg=ReadyIngressNodesAvailable: Authentication requires functional ingress which requires at least one schedulable and ready node. Got 0 worker nodes, 1 master nodes, 0 custom target nodes (none are schedulable or ready for ingress pods).