:param service_name:
        :return None:

def load_containers(self, service, configs, use_cache):
        """
        :param service_name:
        :return None:
        """
        if not isinstance(service, Service):
            raise TypeError("service must be and instance of service.  {0} was passed.".format(service))

        if not self.healthy():
            logger.error("unable to connect to container ship.")
            raise Exception('lost comms with our container ship')

        self._load_service_containers(service, configs, use_cache)