The nova.objects.image_meta Module

class ImageMeta(context=None, **kwargs)

Bases: nova.objects.base.NovaObject

VERSION = '1.8'

checksum

container_format

created_at

direct_url

disk_format

fields = {'min_ram': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'size': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'checksum': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'min_disk': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'updated_at': DateTime(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'tags': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'disk_format': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'properties': Object(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'owner': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'protected': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'direct_url': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'created_at': DateTime(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=True), 'id': UUID(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'status': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'name': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'visibility': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'container_format': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'virtual_size': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False)}

classmethod from_dict(image_meta)

Create instance from image metadata dict

Parameters:image_meta – image metadata dictionary

Creates a new object instance, initializing from the properties associated with the image metadata instance

Returns:an ImageMeta instance

classmethod from_image_ref(context, image_api, image_ref)

Create instance from glance image

Parameters:

• context – the request context
• image_api – the glance client API
• image_ref – the glance image identifier

Creates a new object instance, initializing from the properties associated with a glance image

Returns:an ImageMeta instance

classmethod from_instance(instance)

Create instance from instance system metadata

Parameters:instance – Instance object

Creates a new object instance, initializing from the system metadata “image_*” properties associated with instance

Returns:an ImageMeta instance

id

min_disk

min_ram

name

owner

properties

protected

size

status

tags

updated_at

virtual_size

visibility

class ImageMetaProps(context=None, **kwargs)

Bases: nova.objects.base.NovaObject

NUMA_NODES_MAX = 128

VERSION = '1.12'

fields = {'hw_machine_type': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_auto_disk_config': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_linked_clone': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_serial_port_count': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_cpu_realtime_mask': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_version': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_owner_id': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_vm_mode': VMMode(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=['hvm', 'xen', 'uml', 'exe']), 'img_use_agent': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_numa_nodes': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_cpu_max_sockets': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_qemu_guest_agent': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_disk_bus': DiskBus(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('fdc', 'ide', 'sata', 'scsi', 'usb', 'virtio', 'xen', 'lxc', 'uml')), 'img_config_drive': ConfigDrivePolicy(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('optional', 'mandatory')), 'img_bittorrent': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_hv_type': HVType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('baremetal', 'bhyve', 'docker', 'fake', 'hyperv', 'ironic', 'kqemu', 'kvm', 'lxc', 'lxd', 'openvz', 'parallels', 'phyp', 'qemu', 'test', 'uml', 'vbox', 'vz', 'vmware', 'xen', 'zvm')), 'hw_cpu_max_threads': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_video_ram': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_skip_agent_inject_files_at_boot': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_signature': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_block_device_mapping': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_compression_level': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_vif_multiqueue_enabled': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_floppy_bus': DiskBus(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('fdc', 'ide', 'sata', 'scsi', 'usb', 'virtio', 'xen', 'lxc', 'uml')), 'img_signature_hash_method': ImageSignatureHashType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('SHA-224', 'SHA-256', 'SHA-384', 'SHA-512')), 'img_cache_in_nova': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_ipxe_boot': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_mappings': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_mem_page_size': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_hv_requested_version': VersionPredicate(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_rng_model': RNGModel(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('virtio',)), 'hw_cpu_policy': CPUAllocationPolicy(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('dedicated', 'shared')), 'img_bdm_v2': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_type': OSType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('linux', 'windows')), 'hw_firmware_type': FirmwareType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('uefi', 'bios')), 'hw_numa_cpus': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_cpu_max_cores': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_skip_agent_inject_ssh': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_cdrom_bus': DiskBus(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('fdc', 'ide', 'sata', 'scsi', 'usb', 'virtio', 'xen', 'lxc', 'uml')), 'os_require_quiesce': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_root_device_name': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_numa_mem': List(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_distro': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_scsi_model': SCSIModel(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('buslogic', 'ibmvscsi', 'lsilogic', 'lsisas1068', 'lsisas1078', 'virtio-scsi', 'vmpvscsi')), 'hw_architecture': Architecture(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=['alpha', 'armv6', 'armv7l', 'armv7b', 'aarch64', 'cris', 'i686', 'ia64', 'lm32', 'm68k', 'microblaze', 'microblazeel', 'mips', 'mipsel', 'mips64', 'mips64el', 'openrisc', 'parisc', 'parisc64', 'ppc', 'ppcle', 'ppc64', 'ppc64le', 'ppcemb', 's390', 's390x', 'sh4', 'sh4eb', 'sparc', 'sparc64', 'unicore32', 'x86_64', 'xtensa', 'xtensaeb']), 'hw_cpu_sockets': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_boot_menu': FlexibleBoolean(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_admin_user': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'os_command_line': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_watchdog_action': WatchdogAction(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('none', 'pause', 'poweroff', 'reset')), 'hw_cpu_threads': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_signature_key_type': ImageSignatureKeyType(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('DSA', 'ECC_SECT571K1', 'ECC_SECT409K1', 'ECC_SECT571R1', 'ECC_SECT409R1', 'ECC_SECP521R1', 'ECC_SECP384R1', 'RSA-PSS')), 'hw_cpu_thread_policy': CPUThreadAllocationPolicy(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('prefer', 'isolate', 'require')), 'hw_video_model': VideoModel(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('cirrus', 'qxl', 'vga', 'vmvga', 'xen')), 'hw_vif_model': VIFModel(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False,valid_values=('virtio', 'ne2k_pci', 'pcnet', 'rtl8139', 'e1000', 'e1000e', 'netfront', 'spapr-vlan', 'sriov', 'vmxnet', 'vmxnet3')), 'hw_disk_type': String(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_device_id': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'hw_cpu_cores': Integer(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False), 'img_signature_certificate_uuid': UUID(default=<class 'oslo_versionedobjects.fields.UnspecifiedDefault'>,nullable=False)}

classmethod from_dict(image_props)

Create instance from image properties dict

Parameters:image_props – dictionary of image metdata properties

Creates a new object instance, initializing from a dictionary of image metadata properties

Returns:an ImageMetaProps instance

get(name, defvalue=None)

Get the value of an attribute :param name: the attribute to request :param defvalue: the default value if not set

This returns the value of an attribute if it is currently set, otherwise it will return None.

This differs from accessing props.attrname, because that will raise an exception if the attribute has no value set.

So instead of

if image_meta.properties.obj_attr_is_set(“some_attr”):

val = image_meta.properties.some_attr

else

val = None

Callers can rely on unconditional access

val = image_meta.properties.get(“some_attr”)

Returns:the attribute value or None

hw_architecture

hw_auto_disk_config

hw_boot_menu

hw_cdrom_bus

hw_cpu_cores

hw_cpu_max_cores

hw_cpu_max_sockets

hw_cpu_max_threads

hw_cpu_policy

hw_cpu_realtime_mask

hw_cpu_sockets

hw_cpu_thread_policy

hw_cpu_threads

hw_device_id

hw_disk_bus

hw_disk_type

hw_firmware_type

hw_floppy_bus

hw_ipxe_boot

hw_machine_type

hw_mem_page_size

hw_numa_cpus

hw_numa_mem

hw_numa_nodes

hw_qemu_guest_agent

hw_rng_model

hw_scsi_model

hw_serial_port_count

hw_video_model

hw_video_ram

hw_vif_model

hw_vif_multiqueue_enabled

hw_vm_mode

hw_watchdog_action

img_bdm_v2

img_bittorrent

img_block_device_mapping

img_cache_in_nova

img_compression_level

img_config_drive

img_hv_requested_version

img_hv_type

img_linked_clone

img_mappings

img_owner_id

img_root_device_name

img_signature

img_signature_certificate_uuid

img_signature_hash_method

img_signature_key_type

img_use_agent

img_version

obj_make_compatible(primitive, target_version)

os_admin_user

os_command_line

os_distro

os_require_quiesce

os_skip_agent_inject_files_at_boot

os_skip_agent_inject_ssh

os_type