Comment 1 for bug 1738277

Reviewed: https://review.openstack.org/527913
Committed: https://git.openstack.org/cgit/openstack/quark/commit/?id=43c8359db51d2367c6d40f9ff0b5c868547276f5
Submitter: Zuul
Branch: master

commit 43c8359db51d2367c6d40f9ff0b5c868547276f5
Author: inimitableharish <email address hidden>
Date: Tue Dec 12 00:04:31 2017 +0530

    OnMetal Driver Can't Handle 404s on Port Delete

    When quark tries to delete an onmetal port that no longer
    exists downstream, it should happily ignore the 404 and
    move on.Instead, it complains and retries before eventually
    giving up. This is due to not catching the correctexception
    from the neutron client.This doesn't present as a 500 to
    any clients, as the exception is caught and ignored,
    but it gums up the logs and wastes time making requests
    multiple times.

    Implements: Exception handling
    Closes-Bug: #1738277
    Change-Id: I4ccd9be891e6c533ceb68427d47ed658bf27f4a8