docker_machine.py 文件源码

def get_url(machine_name):
    """Given a docker machine, retrieve the URL for this machine.
    This is the DOCKER_HOST env variable from running
    `docker-machine env {name}`

    :param str machine_name: the name of the docker machine

    :rtype: str
    :returns: machine URL
    """
    dir_path = _machine_path(machine_name)
    if not os.path.exists(dir_path):
        raise MachineNotFoundError

    env_text = check_output(
        ['env', machine_name])
    env = parse_shell_for_exports(env_text)
    return env['DOCKER_HOST']