Comment 2 for bug 1728650

Reviewed: https://review.openstack.org/516382
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=5b61f5a1491a067ec91a2bf29d8bcd64e0d475c1
Submitter: Zuul
Branch: master

commit 5b61f5a1491a067ec91a2bf29d8bcd64e0d475c1
Author: Dmitry Tantsur <email address hidden>
Date: Mon Oct 30 17:28:42 2017 +0100

    Retry the check_default_nodes_count workflow for 2 minutes

    Nova updates its cache of bare metal nodes once in 2 minutes. If a new
    deployment is run right after the previous one, the cache may be
    outdated, and the second deployment may fail validation.

    This change introduces a retry where check_default_nodes_count workflow
    is called.

    Closes-Bug: #1728650
    Change-Id: I43a97f7f9bc4e7062a47003e5d9d06ebe3716450