Split ceph operations and openstack restart to different methods

Some Openstack services and their backends (like Gnocchi)
require ceph to be operational during during Openstack setup.
This patch adds ability to setup ceph keyrings and openstack
related configs on different stages of deployment.

Change-Id: Ifd245b41ffc5204ef4ceb6e2564d63654f30239c
Related-Prod: https://mirantis.jira.com/browse/PROD-22451
1 file changed