1. If osa_enable_block_storage=false, then there should
be no cinder hosts deployed, nor any presence of the
vars related to it in openstack_user_config.
2. If osa_enable_compute=false, then there should be no
compute hosts deployed, nor any presence of the
vars related to it in openstack_user_config..
3. If osa_enable_object_storage=false, then there should
be no swift hosts deployed, nor any presence of the
vars related to it in openstack_user_config..
Change-Id: Id6858d277c80095024af5d8e04dfc97cc3e3b253