* Tested only on distributed at this check-in
* Also **temporarily** installing `patch` on the infra hosts, needed for
an os_nova patch that will ultimately be removed. It isn't clear from
this patch though, because the file init-nodes.yml which installs
packages was renamed to tasks/init-nodes.yml.
* There are some drawbacks to doing it this way, but the playbooks are
serving a single purpose and don't need to be catch-all infra tooling
