code: def recall_service(self, service):
          if not isinstance(service, Service):
              raise TypeError("service must be of type Service.")
          logger.warning("The deployment for {0} on {1} failed starting the rollback.".format(service.alias, self.url.geturl()))
          def anonymous(anonymous_service):
              if not isinstance(anonymous_service, Service):
                  raise TypeError("service must be an instance of Service.")
              containers = self.find_previous_service_containers(anonymous_service)
              if containers:
                  for name in list(anonymous_service.containers.keys()):
                      del anonymous_service.containers[name]
                  anonymous_service.cargo.delete()
                  for name, container in six.iteritems(containers):
                      if container.state().get('running'):
                          logger.info(
                              "is already running... Might want to investigate.",
                              extra={'formatter': 'container', 'container': container.name}
                          )
                      else:
                          if container.start():
                              logger.info(
                                  "is restarted and healthy.",
                                  extra={'formatter': 'container', 'container': container.name}
                              )
                          else:
                              logger.error(
                                  "failed to start.",
                                  extra={'formatter': 'container', 'container': container.name}
                              )
                              container.dump_logs()
                              raise Exception(
                                  "The deployment for {0} on {1} went horribly wrong".format(container.name, self.url.geturl())
                              )
          self._service_map(service, anonymous, descending=False)