Always take node snaphosts when cluster is built
Always take node snaphosts when cluster is built

Now that we are skipping the snapshot cycles by default, users don't
have a snapshot of the compute node to go back to. With this patch,
we take a snapshot of each node when the cluster is built.

Change-Id: I76e95269d9f9f302016d7ea3df8387ddfc6f4c41

openstack/training-labs,openstack/training-labs,openstack/training-labs