Comment 32 for bug 1750656

Reviewed: https://review.openstack.org/547004
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_nova/commit/?id=fe537c7a29ff7022e30771d2f59c00c9bece008e
Submitter: Zuul
Branch: master

commit fe537c7a29ff7022e30771d2f59c00c9bece008e
Author: Jesse Pretorius <email address hidden>
Date: Thu Feb 22 14:34:56 2018 +0000

    Fix cache update after initial apt_repository fail

    If apt_repository fails to update the apt cache after updating the
    configuration, retries don't register there was a change and so no
    attempt is made to update the cache by the module on the second attempt.
    This failure can result in a failure to install packages.

    This change adds an apt module task to update the cache if the
    apt_repository task registers a change. This means updating the cache
    will get retried on failure and no longer fail silently.

    Change-Id: I1d71deeee64fe27df1275965aac8240cc2ab427c
    Partial-Bug: #1750656