new_contents: from mailu import app
  
  import docker
  import signal
  
  
  # Connect to the Docker socket
  cli = docker.Client(base_url=app.config['DOCKER_SOCKET'])
  
  
  def get(*names):
      result = {}
      all_containers = cli.containers(all=True)
      for brief in all_containers:
          if brief['Image'].startswith('mailu/'):
              container = cli.inspect_container(brief['Id'])
              container['Image'] = cli.inspect_image(container['Image'])
              name = container['Config']['Labels']['com.docker.compose.service']
              if not names or name in names:
                  result[name] = container
      return result
  
  
  def reload(*names):
      for name, container in get(*names).items():
          cli.kill(container["Id"], signal.SIGHUP.value)
  
subject: Add the Docker client helper