def _in_process_setup_ring(swift_conf, conf_src_dir, testdir):
    conf = ConfigParser()
    conf.read(swift_conf)
    sp_prefix = 'storage-policy:'

    try:
        # policy index 0 will be created if no policy exists in conf
        policies = parse_storage_policies(conf)
    except PolicyError as e:
        raise InProcessException(e)

    # clear all policies from test swift.conf before adding test policy back
    for policy in policies:
        conf.remove_section(sp_prefix + str(policy.idx))

    if policy_specified:
        policy_to_test = policies.get_by_name(policy_specified)
        if policy_to_test is None:
            raise InProcessException('Failed to find policy name "%s"'
                                     % policy_specified)
        _info('Using specified policy %s' % policy_to_test.name)
    else:
        policy_to_test = policies.default
        _info('Defaulting to policy %s' % policy_to_test.name)

    # make policy_to_test be policy index 0 and default for the test config
    sp_zero_section = sp_prefix + '0'
    conf.add_section(sp_zero_section)
    for (k, v) in policy_to_test.get_info(config=True).items():
        conf.set(sp_zero_section, k, v)
    conf.set(sp_zero_section, 'default', True)

    with open(swift_conf, 'w') as fp:
        conf.write(fp)

    # look for a source ring file
    ring_file_src = ring_file_test = 'object.ring.gz'
    if policy_to_test.idx:
        ring_file_src = 'object-%s.ring.gz' % policy_to_test.idx
    try:
        ring_file_src = _in_process_find_conf_file(conf_src_dir, ring_file_src,
                                                   use_sample=False)
    except InProcessException as e:
        if policy_specified:
            raise InProcessException('Failed to find ring file %s'
                                     % ring_file_src)
        ring_file_src = None

    ring_file_test = os.path.join(testdir, ring_file_test)
    if ring_file_src:
        # copy source ring file to a policy-0 test ring file, re-homing servers
        _info('Using source ring file %s' % ring_file_src)
        ring_data = ring.RingData.load(ring_file_src)
        obj_sockets = []
        for dev in ring_data.devs:
            device = 'sd%c1' % chr(len(obj_sockets) + ord('a'))
            utils.mkdirs(os.path.join(_testdir, 'sda1'))
            utils.mkdirs(os.path.join(_testdir, 'sda1', 'tmp'))
            obj_socket = eventlet.listen(('localhost', 0))
            obj_sockets.append(obj_socket)
            dev['port'] = obj_socket.getsockname()[1]
            dev['ip'] = '127.0.0.1'
            dev['device'] = device
            dev['replication_port'] = dev['port']
            dev['replication_ip'] = dev['ip']
        ring_data.save(ring_file_test)
    else:
        # make default test ring, 2 replicas, 4 partitions, 2 devices
        _info('No source object ring file, creating 2rep/4part/2dev ring')
        obj_sockets = [eventlet.listen(('localhost', 0)) for _ in (0, 1)]
        ring_data = ring.RingData(
            [[0, 1, 0, 1], [1, 0, 1, 0]],
            [{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1',
              'port': obj_sockets[0].getsockname()[1]},
             {'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1',
              'port': obj_sockets[1].getsockname()[1]}],
            30)
        with closing(GzipFile(ring_file_test, 'wb')) as f:
            pickle.dump(ring_data, f)

    for dev in ring_data.devs:
        _debug('Ring file dev: %s' % dev)

    return obj_sockets
Setup the Panasonic Viera TV platform.
dataset/ETHPy150Open openstack/swift/test/functional/__init__.py/_in_process_setup_ring--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/media_player/panasonic_viera.py/setup_platform