Add role to aodh and panko

Change-Id: I3733a0d0b6cc392468dbf426604be07ef3725d2d
diff --git a/panko/server/cluster.yml b/panko/server/cluster.yml
index c258c9a..e277c30 100644
--- a/panko/server/cluster.yml
+++ b/panko/server/cluster.yml
@@ -11,6 +11,7 @@
     panko_memcached_node03_address: ${_param:cluster_node03_address}
   panko:
     server:
+      role: ${_param:openstack_node_role}
       identity:
         host: ${_param:openstack_control_address}
       database: