Set redis password hiera value in compute agent

Without this config defaults to undef in containers

Change-Id: Id47f365364e7b0d399de92995871b136550cd625

puppet/services/ceilometer-agent-compute.yaml

@@ -39,6 +39,10 @@ parameters:
     type: string
     constraints:
     - allowed_values: ['naive', 'libvirt_metadata', 'workload_partitioning']
+  RedisPassword:
+    description: The password for the redis service account.
+    type: string
+    hidden: true
 
 resources:
   CeilometerServiceBase:
@@ -61,6 +65,7 @@ outputs:
         map_merge:
           - get_attr: [CeilometerServiceBase, role_data, config_settings]
           - ceilometer::agent::compute::instance_discovery_method: {get_param: InstanceDiscoveryMethod}
+          - ceilometer_redis_password: {get_param: RedisPassword}
             compute_namespace: true
       service_config_settings:
         get_attr: [CeilometerServiceBase, role_data, service_config_settings]