Comment 4 for bug 1749663

Reviewed: https://review.openstack.org/548914
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=13678cb045ca0ab1abc72455b7f71b7cce7406bc
Submitter: Zuul
Branch: master

commit 13678cb045ca0ab1abc72455b7f71b7cce7406bc
Author: Steve Baker <email address hidden>
Date: Thu Mar 1 10:50:40 2018 +0000

    Use tenacity for image upload retries

    This change replaces the custom image pull/push retry loop with a
    tenacity annotation.

    The docker client uses requests, so this fixes an issue where requests
    can raise a vendored urllib3 exception if the registry doesn't respond
    at all. This will now be caught by tenacity and treated as a retry
    condition.

    Change-Id: Ifa08f21ccbc1bf04732462d28449546cf146c53a
    Closes-Bug: #1749663