Comment 10 for bug 1431724

Reviewed: https://review.openstack.org/164190
Committed: https://git.openstack.org/cgit/openstack/tempest/commit/?id=17940737daf172cbb428cef12e5f5765900d580b
Submitter: Jenkins
Branch: master

commit 17940737daf172cbb428cef12e5f5765900d580b
Author: Matt Riedemann <email address hidden>
Date: Fri Mar 13 14:18:19 2015 +0000

    Restore "Add scenario 'test_preserve_preexisting_port'"

    This reverts commit 8ec99feafebd5ee67a0f4c34bcd5a30d8d42ed97

    The neutron job on stable/icehouse was running more tests than what the
    neutron-icehouse compat job was running against tempest changes on
    master, that's why we didn't catch this when the change on master to add
    the test was under review.

    Note that stable/juno neutron jobs were not running these tests either
    because the router extension isn't enabled.

    The difference was we didn't have change
    I7c80e3bfe4962c3e8c94736af21ff215cd98f7f3 on stable/icehouse or
    stable/juno in devstack before the new test merged, which broke
    stable/icehouse.

    Now that devstack is fixed on stable and will run these scenario tests
    we add a 'preserve_ports' config flag to compute-feature-enabled so it
    can be toggled from devstack.
    For stable branches we won't run the test since the code doesn't work in
    Nova on stable (and won't be backported). For master devstack, we'll set
    preserve_ports=True so the test does get run. We can remove the option
    after juno-eol happens.

    Devstack change: I214baa3b861e29bedf6bb7b50534ac2286676dd1

    Related-Bug: #1431724

    Change-Id: I95469e4c2f4aa2bc4e6342860a9c222fb4fa7e16