Comment 5 for bug 1638003

Reviewed: https://review.openstack.org/393831
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=ebe270c258d07b9a63d26a477814336188d57d53
Submitter: Jenkins
Branch: master

commit ebe270c258d07b9a63d26a477814336188d57d53
Author: Dougal Matthews <email address hidden>
Date: Fri Nov 4 15:36:07 2016 +0000

    Use parameters from existing Heat stack if it already exists

    Users upgrading from Mitaka will have a stack and no plan. When
    instack-undercloud creates the plan it will generate new passwords. With
    this change it will take the passwords from the Heat stack.

    Closes-Bug: #1638003
    Change-Id: I3ea6bbd0d9c5dd345b8a4a26a1788326e09d4209