Add new service level classes

Since Pike default ceilometer backend is gnocchi and database publishers
are deprecated, this commit create classes for ceilometer non-database
setup. This will allow to smoothly switch to Gnocchi as publisher. Also
if publisher isn't set in pillar, default publisher notifier will be used.

Change-Id: I78cf9e12591c474738c0bc14b1c1777974e876e0
Related-Prod: https://mirantis.jira.com/browse/PROD-20813
diff --git a/metadata/service/server/cluster/init.yml b/metadata/service/server/cluster/init.yml
new file mode 100644
index 0000000..a530b0f
--- /dev/null
+++ b/metadata/service/server/cluster/init.yml
@@ -0,0 +1,24 @@
+applications:
+- ceilometer
+classes:
+- service.ceilometer.server.cluster.common
+parameters:
+  ceilometer:
+    server:
+      publisher:
+        default:
+          enabled: true
+          publish_event: true
+          publish_metric: true
+      database:
+        engine: mongodb
+        members:
+        - host: ${_param:cluster_node01_address}
+          port: 27017
+        - host: ${_param:cluster_node02_address}
+          port: 27017
+        - host: ${_param:cluster_node03_address}
+          port: 27017
+        name: ceilometer
+        user: ceilometer
+        password: ${_param:mongodb_ceilometer_password}