The nova.objects.block_device Module

class BlockDeviceMapping(context=None, **kwargs)

Bases: nova.objects.base.NovaPersistentObject, nova.objects.base.NovaObject, nova.objects.base.NovaObjectDictCompat

VERSION = '1.16'

boot_index

connection_info

create(*args, **kwargs)

created_at

delete_on_termination

deleted

deleted_at

destination_type

destroy(*args, **kwargs)

device_name

device_type

disk_bus

fields = {'device_name': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'device_type': BlockDeviceType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True,valid_values=('cdrom', 'disk', 'floppy', 'fs', 'lun')), 'boot_index': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'instance_uuid': UUID(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'delete_on_termination': Boolean(default=False,nullable=False), 'no_device': Boolean(default=False,nullable=False), 'updated_at': DateTime(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'volume_size': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'deleted_at': DateTime(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'image_id': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'destination_type': BlockDeviceDestinationType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True,valid_values=('local', 'volume')), 'created_at': DateTime(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'id': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'instance': Object(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'disk_bus': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'deleted': Boolean(default=False,nullable=False), 'volume_id': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'source_type': BlockDeviceSourceType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True,valid_values=('blank', 'image', 'snapshot', 'volume')), 'guest_format': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'snapshot_id': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'connection_info': SensitiveString(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True)}

classmethod get_by_volume(context, *args, **kwargs)

classmethod get_by_volume_and_instance(context, *args, **kwargs)

classmethod get_by_volume_id(context, *args, **kwargs)

get_image_mapping()

guest_format

id

image_id

instance

instance_uuid

is_image

is_root

is_volume

no_device

obj_load_attr(attrname)

save(*args, **kwargs)

snapshot_id

source_type

update_or_create(*args, **kwargs)

updated_at

volume_id

volume_size

class BlockDeviceMappingList(*args, **kwargs)

Bases: nova.objects.base.ObjectListBase, nova.objects.base.NovaObject

VERSION = '1.17'

classmethod bdms_by_instance_uuid(context, instance_uuids)

fields = {'objects': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False)}

classmethod get_by_instance_uuid(context, *args, **kwargs)

classmethod get_by_instance_uuids(context, *args, **kwargs)

instance_uuids

objects

root_bdm()

It only makes sense to call this method when the BlockDeviceMappingList contains BlockDeviceMappings from exactly one instance rather than BlockDeviceMappings from multiple instances.

For example, you should not call this method from a BlockDeviceMappingList created by get_by_instance_uuids(), but you may call this method from a BlockDeviceMappingList created by get_by_instance_uuid().

block_device_make_list(context, db_list, **extra_args)

block_device_make_list_from_dicts(context, bdm_dicts_list)