For host-based ceph cluster, serivce manager launch service mgr-restful-plugin
which launch ceph-mgr and daemon ceph-manager. Ceph-manager daemon polls
ceph cluster status by ceph-mgr restful module and raise or clean alarm to
to fault manager.
For rook, build a image named stx-ceph-manager, use this image to make a
deployment, which will take the same task polling containerized ceph cluster
status and raise or clean alarm.
Signed-off-by: Martin, Chen <firstname.lastname@example.org>