Add CF diagnostic logs for CF to payment app

payment/rabbitmq.py

@@ -13,9 +13,13 @@ class Publisher:
         self._logger = logger
 
         if 'VCAP_SERVICES' in os.environ:
+            self._logger.info('Cloud Foundry detected')
+
             env = AppEnv()
             amqp_service = env.get_service(binding_name='dispatch_queue')
 
+            self._logger.info('Service binding \'{binding_name}\' found'.format(binding_name='dispatch_queue'))
+
             self._uri = amqp_service.credentials.get('uri')
         else:
             self._uri = 'ampq://{user}:{pwd}@{host}:{port}/{vhost}'.format(