[Nova][Ironic] Reset Configurations in Baremetals Post Provisioning

Eric Fried openstack at fried.cc
Thu Jun 13 17:45:24 UTC 2019

We discussed this today in the nova meeting [1] with a little bit of
followup in the main channel after the meeting closed [2].

There seems to be general support (or at least not objection) for
implementing "resize" for ironic, limited to:

- same host [3]
- just this feature (i.e. "hyperthreading") or possibly "anything deploy

And the consensus was that it's time to put this into a spec.

There was a rocky spec [4] that has some overlap and could be
repurposed; or a new one could be introduced.


[3] an acknowledged wrinkle here was that we need to be able to detect
at the API level that we're dealing with an Ironic instance, and ignore
the allow_resize_to_same_host option (because always forcing same host)
[4] https://review.opendev.org/#/c/449155/

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