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[Elod Illes <1974173@xxxxxxxxxxxxxxxxxx>]

** Also affects: nova/ussuri
   Importance: Undecided
       Status: New

** Also affects: nova/wallaby
   Importance: Undecided
       Status: New

** Also affects: nova/victoria
   Importance: Undecided
       Status: New

** Also affects: nova/yoga
   Importance: Undecided
       Status: New

** Also affects: nova/xena
   Importance: Undecided
       Status: New

** Also affects: nova/train
   Importance: Undecided
       Status: New

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You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1974173

Title:
  Remaining ports are not unbound if one port is missing

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) train series:
  New
Status in OpenStack Compute (nova) ussuri series:
  New
Status in OpenStack Compute (nova) victoria series:
  New
Status in OpenStack Compute (nova) wallaby series:
  New
Status in OpenStack Compute (nova) xena series:
  New
Status in OpenStack Compute (nova) yoga series:
  New

Bug description:
  As part of the instance deletion process, we must unbind ports
  associated with said instance. To do this, we loop over all ports
  currently attached to an instance. However, if neutron returns HTTP
  404 (Not Found) for any of these ports, we will return early and fail
  to unbind the remaining ports. We've seen the problem in the context
  of Kubernetes on OpenStack. Our deinstaller is brute-force, so it
  deletes ports and servers at the same time, so a race means the port
  can get deleted early. This normally wouldn't be an issue as we'd just
  "untrunk" it and proceed to delete it. But that won't work for SR-IOV
  ports as in that case you cannot "untrunk" bound ports.

  The solution here is obvious: if we fail to find a port, we should
  simply skip that and continue unbinding everything else.

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