Comment 15 for bug 1887846

Reviewed: https://review.opendev.org/743781
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=2e50794163f115d4bb83e73a4be96a5058f6e346
Submitter: Zuul
Branch: stable/train

commit 2e50794163f115d4bb83e73a4be96a5058f6e346
Author: Alex Schultz <email address hidden>
Date: Tue Jul 28 14:02:53 2020 -0600

    Switch 55-heat-config to async

    If while a task is executing the ssh connection is severed, ansible will
    automagically rerun the command under the covers. This causes problems
    for long running 55-heat-config tasks as first process may have written
    out the deployed json but not the notify.json that we use use to
    determine if it was successful or not. This can lead to a failure
    because the process either never runs to completion. This change
    switches the execution to always be run async to ensure that ssh
    interruptions won't cause inconsistent failures.

    We previously saw a similar issue when invoking the NetworkDeployments
    using this process. We've moved the network configurations to the
    NetworkConfig task in THT/common/deploy-steps.j2 but this code is still
    used to invoked with OS::Heat::SoftwareDeploymentGroup

    Change-Id: Ic911bb6d999caf2dc4afd4cff3d44047c03dc8e4
    Related-Bug: #1792343
    Closes-Bug: #1887846
    (cherry picked from commit 43aaaaa1190d7f5e808c906e82abcf116e0508c9)