MetalLB and IP failover (keepalived) are
incompatible. Technical info for this
commit originated in NE-572.
* Feedback from Ryan F.
* Move step to locate config maps to before
the step that deletes the pods.
* Use `iptables` to match existing formatting.
* Feedback from Mohamed and Arti.
* Review from Alex. End instructional text that introduces
substeps with a colon unless another sentence intervenes.