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/glance/control/cluster.yml b/glance/control/cluster.yml
index bb87f16..e218835 100644
--- a/glance/control/cluster.yml
+++ b/glance/control/cluster.yml
@@ -15,6 +15,7 @@
       enabled: true
       version: ${_param:glance_version}
       workers: 8
+      role: ${_param:openstack_node_role}
       database:
         engine: mysql
         host: ${_param:openstack_database_address}