ceph fixes

Change-Id: Ica9d408a4820fe076806339ba5f7e1d6c3a3245e
diff --git a/ceph/common/single.yml b/ceph/common/single.yml
new file mode 100644
index 0000000..66b798c
--- /dev/null
+++ b/ceph/common/single.yml
@@ -0,0 +1,2 @@
+classes:
+- service.ceph.common.single