rename cluster levels to non-underscore names

Change-Id: Ic9bdafbeb1333699ce424612f8b2e8d8dafb7be2
diff --git a/classes/cluster/ceph-ha/ceph/common.yml b/classes/cluster/ceph-ha/ceph/common.yml
new file mode 100644
index 0000000..98708f9
--- /dev/null
+++ b/classes/cluster/ceph-ha/ceph/common.yml
@@ -0,0 +1,8 @@
+classes:
+- system.linux.system.repo.ceph
+- cluster.ceph-ha.infra
+parameters:
+  ceph:
+    common:
+      public_network: 10.1.0.0/24
+      cluster_network: 10.16.0.0/24