diff --git a/ceph/common/cluster.yml b/ceph/common/cluster.yml
new file mode 100644
index 0000000..6f0b9c8
--- /dev/null
+++ b/ceph/common/cluster.yml
@@ -0,0 +1,2 @@
+classes:
+- service.ceph.common.cluster
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