Add management port to RabbitMQ service

Management port exposes a HTTP REST API which can be used to
add virtual hosts and users, gather statistics and other data
about the running cluster. This also turns on the web interface
available on the management port.

Change-Id: I5e4c902d780d99e96fdd160c58227676d4676e87
Partial-Implements: blueprint service-rabbitmq-registration

rabbitmq/templates/service.yaml

@@ -20,5 +20,8 @@ metadata:
 spec:
   ports:
   - port: {{.Values.network.port.public}}
+    name: public
+  - port: {{.Values.network.port.management}}
+    name: management
   selector:
 {{ tuple $envAll "rabbitmq" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}

rabbitmq/values.yaml

@@ -59,6 +59,7 @@ images:
 
 enabled_plugins:
   - autocluster
+  - rabbitmq_management
 
 erlang_cookie: openstack-cookie