Comment 1 for bug 1733740

Reviewed: https://review.openstack.org/522055
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=aa1651a61e349dd50b94c55e2322c576989b0f34
Submitter: Zuul
Branch: master

commit aa1651a61e349dd50b94c55e2322c576989b0f34
Author: Steve Baker <email address hidden>
Date: Wed Nov 22 11:25:35 2017 +1300

    Concurrent upload container images

    This change uses multiprocessing to speed the pull/push of the
    container images for the command "overcloud container image upload"

    Closes-Bug: #1733740

    Change-Id: I70cb86de4e0be5a8994ca1936e3b26749b6dde59