Comment 8 for bug 1883601

Reviewed: https://review.opendev.org/736286
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=080123851cc7b004e386fe213697b6a8f0ebebd5
Submitter: Zuul
Branch: stable/ussuri

commit 080123851cc7b004e386fe213697b6a8f0ebebd5
Author: Bernard Cafarelli <email address hidden>
Date: Wed Jun 17 17:54:22 2020 +0200

    Fix ussuri gates

    This is a combination of 3 commits.
    This is the 1st commit message:

    Temporarily disable grenade-multinode jobs

    We need to backport multiple gate fixes, disable the relevant jobs.
    Backports should re-enable the matching jobs

    This is the commit message #2:

    Add ensure-tox in functional job

    neutron functional jobs run tests using the tox env.
    Even tempest jobs need tox to be present to run the tempest
    tests in venv. But functional job derived from devstack-minimal
    jobs does not make sure tox is present or not. devstack jobs does not
    mak sure that as those are not only used for tox run but also for
    other integration testing.

    Current neutorn functional job failure-
    - https://zuul.opendev.org/t/openstack/build/59865004855c404ab18f06fc0ec1d005

    let's call ensure-tox role in job to make sure tox is present.

    Closes-Bug: 1884256
    (cherry picked from commit bda80e8e2a94ff3297ec750589cd879896f12c70)

    This is the commit message #3:

    ovn: Use newer OVS

    OVS tag v2.13.0 is not compatible with current used kernel on upstream
    Bionic Ubuntu kernel 4.15.0. This patch sticks to commit hash to unblock
    the gate. We can either change to newer 2.13 tag once released or better
    stop compiling OVS and use one packaged by Ubuntu.

    Run functional/fullstack tests with selected OVN and OVS versions

    Previously for functional tests OVS version was hardcoded - v2.12.0,
    and OVN was installed from OVS repository.

    After we merged OVN driver to Neutron tree we run both
    Neutron/OVS and Neutron/OVN functional tests in one job.

    This patch adds possibility to specify from which tag/branch OVS and OVN
    should be checkout.

    Closes-Bug: #1883601
    Closes-Bug: #1878160
    (cherry picked from commit d0860588957730b97fe3ebbefa77c6421da45adc)

    Change-Id: I8c59e209f3a4573c3f94da6c2acd7d6f57e30b31