The ideal workflow for discovery is PXE booting new hardware. When it’s turned on, nodes are discovered and reboot or kexec into OS installer. Hosts can be reprovisioned by simply deleting from inventory which leads to default PXE entry - discovery. But life is not black or white, let’s take a closer look on other scenarios - reprovisioning in PXE-less workflow.
This is a companion discussion topic for the original entry at https://theforeman.org/2018/04/rediscovering-discovered-nodes.html