def METHOD_NAME(self, *args, timeout=2):
    cmd = ["/usr/bin/docker"]
    cmd.extend(args)
    # log.debug('docker.run: {}'.format(cmd))
    res = subprocess.METHOD_NAME(cmd, capture_output=True, timeout=timeout)
    log.debug("rc={} stderr={}".format(res.returncode, res.stderr.decode()))
    res.check_returncode()
    assert res.stderr == b""
    fp = io.BytesIO(res.stdout)
    lines = fp.readlines()
    return lines