Comment 14 for bug 1809313

Reviewed: https://review.openstack.org/627419
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=9590e8450706b1f634f9d53496e53f9b7add601b
Submitter: Zuul
Branch: master

commit 9590e8450706b1f634f9d53496e53f9b7add601b
Author: Harald Jensås <email address hidden>
Date: Mon Dec 24 15:17:08 2018 +0100

    Allow network data with no entries

    When deploying without network isolation we should
    allow an empty network_data.yaml with no networks.

    In combination with tripleo-heat-templates change:
    Ifeb2d2d1acb43c16a5bf29e95965776494d61fef the
    tripleoclient can be update to use /dev/null as
    network data, and networks can be removed from
    roles/Standalone.yaml and roles/Undercloud.yaml.

    Related-Bug: #1809313
    Change-Id: I2e8135bc9389d3bf1a6ef01e273515af5c488a9a