Python instance_block_mapping Examples

Example #1

File: utils.py Project: hsluoyz/patron

def get_device_name_for_instance(context, instance, bdms, device):
    """Validates (or generates) a device name for instance.

    This method is a wrapper for get_next_device_name that gets the list
    of used devices and the root device from a block device mapping.
    """
    mappings = block_device.instance_block_mapping(instance, bdms)
    return get_next_device_name(instance, mappings.values(),
                                mappings['root'], device)

Example #2

File: utils.py Project: 2Exception/patron

def get_device_name_for_instance(context, instance, bdms, device):
    """Validates (or generates) a device name for instance.

    This method is a wrapper for get_next_device_name that gets the list
    of used devices and the root device from a block device mapping.
    """
    mappings = block_device.instance_block_mapping(instance, bdms)
    return get_next_device_name(instance, mappings.values(), mappings['root'],
                                device)

Example #3

def _format_instance_mapping(ctxt, instance):
    bdms = objects.BlockDeviceMappingList.get_by_instance_uuid(
            ctxt, instance.uuid)
    return block_device.instance_block_mapping(instance, bdms)