Comment 5 for bug 1669452

Reviewed: https://review.openstack.org/481587
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=9d97427a4f933da3697010738fdf9413f4fb4eec
Submitter: Jenkins
Branch: stable/ocata

commit 9d97427a4f933da3697010738fdf9413f4fb4eec
Author: Jenkins <email address hidden>
Date: Fri Apr 21 03:16:30 2017 +0000

    Use conditionals for neutron and glance worker defaults

    Using an empty string to signal that the default value in the puppet module
    is to be used no longer seems to work, resulting in the puppet specified
    defaults being overridden by empty string values. The impact on
    configuration will differ depending on the actual configuration item, the
    puppet code and the service, so it is just safer to omit the hieradata if
    the user has not explicitly set a value.

    Change-Id: Ic8b55941b05c4888c06e0e57b8994f71c2966034
    Closes-Bug: #1669452
    (cherry picked from commit Iefbc8f8669680e4f9d01db6b49543bfbe9b7661b)