Comment 5 for bug 1939144

Reviewed: https://review.opendev.org/c/openstack/neutron/+/803759
Committed: https://opendev.org/openstack/neutron/commit/8ac9e2fe6d37ba4608cf141c78017524a5cae1de
Submitter: "Zuul (22348)"
Branch: master

commit 8ac9e2fe6d37ba4608cf141c78017524a5cae1de
Author: Lucas Alvares Gomes <email address hidden>
Date: Fri Aug 6 13:32:08 2021 +0100

    [OVN] Fix Router Availability Zones for segmented networks

    This patch changes the get_candidates_for_scheduling() method to also
    consider all gateway chassis as potential candidates (limited by
    Availability Zones) in case physnet parameter is empty (as for the
    segmented networks case).

    This patch is a simpler/backportable fix for the segmented networks +
    Router AZs use case. In the future we should consider refactoring the
    code responsible for scheduling the gateway router ports, a more detailed
    explanation of what is happening/needed can be found at LP #1939144.

    Change-Id: I8dc5336c6e2acd0b0a2cad0e80eee91280b9f945
    Closes-Bug: #1939144
    Signed-off-by: Lucas Alvares Gomes <email address hidden>