Comment 17 for bug 1842141

Reviewed: https://review.opendev.org/680686
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=44da685cb03d99d9ae34598741b40ed7af54633c
Submitter: Zuul
Branch: stable/stein

commit 44da685cb03d99d9ae34598741b40ed7af54633c
Author: Emilien Macchi <email address hidden>
Date: Fri Aug 30 17:00:07 2019 -0400

    config-download: rename pre/post deployment hostvars

    We can't have numbers starting an Ansible var, so we need to rename the
    pre/post deployments host vars, or we hit this error:
      template error while templating string: expected token 'end of print statement'

    https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#creating-valid-variable-names

    In this patch we have to duplicate host vars but it'll be cleaned up
    once we change to the new file in THT.

    Change-Id: Idbdd6a21eb2cd488daa1e3ddc844b4fc5267047c
    Related-Bug: #1842141
    (cherry picked from commit 21754e9987abd33b5c4f4d79dfbab324186f1fc8)