Comment 10 for bug 1836369

Reviewed: https://review.opendev.org/687913
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=4ddb1bddd6b2c3f5c317471fe736f936158dfeff
Submitter: Zuul
Branch: stable/pike

commit 4ddb1bddd6b2c3f5c317471fe736f936158dfeff
Author: Matt Riedemann <email address hidden>
Date: Thu Jul 11 17:11:32 2019 -0400

    Add functional test for resize crash compute restart revert

    During review of change I51673e58fc8d5f051df911630f6d7a928d123a5b
    there was discussion about the RESIZE_MIGRATING crashed resize
    cleanup on restart of the compute service and how it may or may
    not work but is likely missing some things to cleanup like fields
    set on the instance during prep_resize and resource allocations
    in placement.

    This adds a functional test to hit that code and make assertions
    about what it does and does not cleanup after the crashed resize.

    Needed changes in test_init_host.py compared to Queens:
    * The last assert, self.assertNotIn(server['id'], source_allocations),
      in the functional reproduce does not fails so it is removed.
      The rest of the test asserts still shows that at least part of the
      bug exists in pike.

    Related-Bug: #1836369

    Change-Id: I107d842520c088b4859a3b36621ce6bd8e970475
    (cherry picked from commit 8db712fe040b15f2b8bc5538338658d3aac246e3)
    (cherry picked from commit c565cab47945146cbbd1f1a75f42fef0fc531483)
    (cherry picked from commit f04fc63ffcde238f31c28c0fc5886716b669d718)
    (cherry picked from commit dae6fbfce61b91d44e514d73b6e9979ff0c15fae)