
Instead of using host_prep_tasks (which are part of deployment tasks), we'll use the upgrade tasks that are now well known and tested in previous releases, when the we containerized the overcloud. Depends-On: Id25e6280b4b4f060d5e3f78a50ff83aaca9e6b1a Change-Id: Ic199c7d431e155e2d37996acd0d7b924d14af2b7