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[Jennifer Mulsow <jmulsow@xxxxxxxxxx>]

Public bug reported:

This was observed in the Juno release.

Because targeted evacuations do not go through the scheduler for policy-
based decision making, a VM could be evacuated to a host that would
violate the policy of the server group it belongs to.

If a VM belongs to a server group, the group policy will need to be checked in the compute manager at the time of evacuation to ensure that:
1. VMs in a server group with affinity rule can't be evacuated.
2. VMs in a server group with anti-affinity rule don't move to a host that would violate the rule.

This is related to Bug #1399815, where the same issue is seen with
migration.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1400860

Title:
  server group policy not honored for targeted evacuations

Status in OpenStack Compute (Nova):
  New

Bug description:
  This was observed in the Juno release.

  Because targeted evacuations do not go through the scheduler for
  policy-based decision making, a VM could be evacuated to a host that
  would violate the policy of the server group it belongs to.

  If a VM belongs to a server group, the group policy will need to be checked in the compute manager at the time of evacuation to ensure that:
  1. VMs in a server group with affinity rule can't be evacuated.
  2. VMs in a server group with anti-affinity rule don't move to a host that would violate the rule.

  This is related to Bug #1399815, where the same issue is seen with
  migration.

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