Add openstack_node_role parameter

Add openstack_node_role parameter that will specify node role
primary|secondary. This metadata will be used by formulas as a
trigger to run one-shot operations.

Change-Id: I230590bc5f9d53960c6edaf7e37c44541d9c3342
Related-Prod: PROD-21267
diff --git a/ceilometer/server/cluster.yml b/ceilometer/server/cluster.yml
index f965451..ad804f8 100644
--- a/ceilometer/server/cluster.yml
+++ b/ceilometer/server/cluster.yml
@@ -13,6 +13,7 @@
       cluster: true
       secret: ${_param:ceilometer_secret_key}
       ttl: 86400
+      role: ${_param:openstack_node_role}
       notification:
         workload_partitioning: true
         batch_timeout: 30