Comment 9 for bug 1859766

Reviewed: https://review.opendev.org/703102
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=23d3b8fbc9d793b4faba472ec6a0f7b95be1e70f
Submitter: Zuul
Branch: stable/stein

commit 23d3b8fbc9d793b4faba472ec6a0f7b95be1e70f
Author: Balazs Gibizer <email address hidden>
Date: Wed May 1 23:06:52 2019 +0200

    Remove global state from the FakeDriver

    The virt driver FakeDriver used in both the functional and in the unit
    test used a global state to configure the host and node names the driver
    reports. This was hard to use when more then one compute service is started.
    Also global state is dangerous.

    It turned out that only a set of unit tests are using multiple nodes per
    compute the rest of the tests can simply use host=<hostname>,
    nodes=[<hostname>] setup.

    So this removes the global state.

    On stable/stein:
    * Changes in functional/regressions/test_bug_1764556.py just removes the
      usage of the global state as that test was backported before the patch
      being backported was introduced

    * Changes in functional/regressions/test_bug_1839560.py is a re-backport
      of If822509e906d5094f13a8700b2b9ed3c40580431 adapted to the current
      patch.

    Related-Bug: #1859766

    Change-Id: I2cf2fcbaebc706f897ce5dfbff47d32117064f9c
    (cherry picked from commit b5666fb49239dbed6777481be63276db35ed8118)