refactor of ceph model

Change-Id: I9a75acfdcf54814c232bfbe034d3a917bc52de4a
diff --git a/ceph/mon/cluster.yml b/ceph/mon/cluster.yml
new file mode 100644
index 0000000..35d5596
--- /dev/null
+++ b/ceph/mon/cluster.yml
@@ -0,0 +1,2 @@
+classes:
+- service.ceph.mon.cluster