code: func recoverFromCreationConflictIfNeeded(client libdocker.Interface, createConfig dockertypes.ContainerCreateConfig, err error) (*dockercontainer.ContainerCreateCreatedBody, error) {
  	matches := conflictRE.FindStringSubmatch(err.Error())
  	if len(matches) != 2 {
  		return nil, err
  	}
  
  	id := matches[1]
  	klog.Warningf("Unable to create pod sandbox due to conflict. Attempting to remove sandbox %q", id)
  	if rmErr := client.RemoveContainer(id, dockertypes.ContainerRemoveOptions{RemoveVolumes: true}); rmErr == nil {
  		klog.V(2).Infof("Successfully removed conflicting container %q", id)
  		return nil, err
  	} else {
  		klog.Errorf("Failed to remove the conflicting container %q: %v", id, rmErr)
  		// Return if the error is not container not found error.
  		if !libdocker.IsContainerNotFoundError(rmErr) {
  			return nil, err
  		}
  	}
  
  	// randomize the name to avoid conflict.
  	createConfig.Name = randomizeName(createConfig.Name)
  	klog.V(2).Infof("Create the container with randomized name %s", createConfig.Name)
  	return client.CreateContainer(createConfig)
  }
docs: // See #33189. If the previous attempt to create a sandbox container name FOO
  // failed due to "device or resource busy", it is possible that docker did
  // not clean up properly and has inconsistent internal state. Docker would
  // not report the existence of FOO, but would complain if user wants to
  // create a new container named FOO. To work around this, we parse the error
  // message to identify failure caused by naming conflict, and try to remove
  // the old container FOO.
  // See #40443. Sometimes even removal may fail with "no such container" error.
  // In that case we have to create the container with a randomized name.
  // TODO(random-liu): Remove this work around after docker 1.11 is deprecated.
  // TODO(#33189): Monitor the tests to see if the fix is sufficient.