new_contents: import docker
  import dronekit
  
  # connect to the Docker daemon
  client = docker.client.from_env()
  print("AAA")
  
  # provision a container from an ArduPilot image
  image_name = "squareslab/ardubugs:base"
  container = client.containers.create(image_name, "/bin/bash", stdin_open=True, detach=True, working_dir="/experiment/source")
  container.start()
  print(container.status)
  print("BBB")
  
  # build SITL
  cmd = "./waf configure"
  container.exec_run(cmd)
  
  cmd = "./waf build -j8"
  container.exec_run(cmd)
  
  
  # start the SITL inside a container
  model = "rover"
  speedup = "1.0"
  home = "-35.362938,149.165085,584,270"
  cmd = 'build/sitl/bin/ardurover --model "{}" --speedup "{}" --home "{}"'.format(model, speedup, home)
  container.exec_run(cmd, detach=True)
  print("CCC")
  
  # connect to the SITL from the host via dronekit
  #port = 14550
  #url = "{}:{}".format(container.ip_address, port)
  #dronekit.connect(url, wait_ready=True)
  
subject: Create container, build the spurce and run ardurover