The goal is to manage multiple Ceph clusters with a single salt master. At this time, only a single Ceph cluster can be managed.
This diagram should explain the intended flow for the orchestration runners and related salt states.
DeepSea is no longer being actively developed since cephadm was added to the Ceph Octopus release.
The SES6 branch (v0.9.x) contains the most recent release of DeepSea, which supports deploying Ceph Nautilus.