Attach a volume to an instance

def attach_volume(name=None, kwargs=None, instance_id=None, call=None):
    '''
    Attach a volume to an instance
    '''
    if call != 'action':
        raise SaltCloudSystemExit(
            'The attach_volume action must be called with -a or --action.'
        )

    if not kwargs:
        kwargs = {}

    if 'instance_id' in kwargs:
        instance_id = kwargs['instance_id']

    if name and not instance_id:
        instance_id = _get_node(name)['instanceId']

    if not name and not instance_id:
        log.error('Either a name or an instance_id is required.')
        return False

    if 'volume_id' not in kwargs:
        log.error('A volume_id is required.')
        return False

    if 'device' not in kwargs:
        log.error('A device is required (ex. /dev/sdb1).')
        return False

    params = {'Action': 'AttachVolume',
              'VolumeId': kwargs['volume_id'],
              'InstanceId': instance_id,
              'Device': kwargs['device']}

    log.debug(params)

    vm_ = get_configured_provider()

    data = salt.utils.cloud.wait_for_ip(
        __attach_vol_to_instance,
        update_args=(params, kwargs, instance_id),
        timeout=config.get_cloud_config_value(
            'wait_for_ip_timeout', vm_, __opts__, default=10 * 60),
        interval=config.get_cloud_config_value(
            'wait_for_ip_interval', vm_, __opts__, default=10),
        interval_multiplier=config.get_cloud_config_value(
            'wait_for_ip_interval_multiplier', vm_, __opts__, default=1),
    )

    return data