Allow RabbitMQ to be disabled

playbooks/edx_sandbox.yml

@@ -28,6 +28,7 @@
     SANDBOX_ENABLE_ECOMMERCE: true
     SANDBOX_ENABLE_ANALYTICS_API: true
     SANDBOX_ENABLE_INSIGHTS: true
+    SANDBOX_ENABLE_RABBITMQ: true
   roles:
     - role: swapfile
       SWAPFILE_SIZE: 4GB
@@ -48,6 +49,7 @@
       when: "'localhost' in EDXAPP_MONGO_HOSTS"
     - role: rabbitmq
       rabbitmq_ip: 127.0.0.1
+      when: SANDBOX_ENABLE_RABBITMQ
     - role: edxapp
       celery_worker: True
     - edxapp