141 lines
3.7 KiB
Python
141 lines
3.7 KiB
Python
# Copyright (C) 2016, Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_serialization import jsonutils
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from oslo_utils import versionutils
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from nova.db import api as db
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from nova.objects import base
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from nova.objects import fields
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@base.NovaObjectRegistry.register
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class DeviceBus(base.NovaObject):
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VERSION = '1.0'
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@base.NovaObjectRegistry.register
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class PCIDeviceBus(DeviceBus):
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VERSION = '1.0'
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fields = {
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'address': fields.PCIAddressField(),
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}
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@base.NovaObjectRegistry.register
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class USBDeviceBus(DeviceBus):
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VERSION = '1.0'
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fields = {
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'address': fields.USBAddressField(),
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}
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@base.NovaObjectRegistry.register
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class SCSIDeviceBus(DeviceBus):
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VERSION = '1.0'
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fields = {
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'address': fields.SCSIAddressField(),
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}
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@base.NovaObjectRegistry.register
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class IDEDeviceBus(DeviceBus):
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VERSION = '1.0'
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fields = {
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'address': fields.IDEAddressField(),
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}
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@base.NovaObjectRegistry.register
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class XenDeviceBus(DeviceBus):
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VERSION = '1.0'
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fields = {
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'address': fields.XenAddressField(),
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}
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@base.NovaObjectRegistry.register
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class DeviceMetadata(base.NovaObject):
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VERSION = '1.0'
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fields = {
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'bus': fields.ObjectField("DeviceBus", subclasses=True),
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'tags': fields.ListOfStringsField(),
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}
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@base.NovaObjectRegistry.register
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class NetworkInterfaceMetadata(DeviceMetadata):
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# Version 1.0: Initial version
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# Version 1.1: Add vlans field
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# Version 1.2: Add vf_trusted field
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VERSION = '1.2'
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fields = {
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'mac': fields.MACAddressField(),
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'vlan': fields.IntegerField(),
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'vf_trusted': fields.BooleanField(default=False),
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}
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def obj_make_compatible(self, primitive, target_version):
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target_version = versionutils.convert_version_to_tuple(target_version)
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if target_version < (1, 1) and 'vlan' in primitive:
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del primitive['vlan']
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if target_version < (1, 2) and 'vf_trusted' in primitive:
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del primitive['vf_trusted']
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@base.NovaObjectRegistry.register
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class DiskMetadata(DeviceMetadata):
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VERSION = '1.0'
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fields = {
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'serial': fields.StringField(nullable=True),
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'path': fields.StringField(nullable=True),
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}
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@base.NovaObjectRegistry.register
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class InstanceDeviceMetadata(base.NovaObject):
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VERSION = '1.0'
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fields = {
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'devices': fields.ListOfObjectsField('DeviceMetadata',
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subclasses=True),
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}
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@classmethod
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def obj_from_db(cls, context, db_dev_meta):
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primitive = jsonutils.loads(db_dev_meta)
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device_metadata = cls.obj_from_primitive(primitive)
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return device_metadata
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@base.remotable_classmethod
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def get_by_instance_uuid(cls, context, instance_uuid):
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db_extra = db.instance_extra_get_by_instance_uuid(
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context, instance_uuid, columns=['device_metadata'])
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if not db_extra or db_extra['device_metadata'] is None:
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return None
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primitive = jsonutils.loads(db_extra['device_metadata'])
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device_metadata = cls.obj_from_primitive(primitive)
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return device_metadata
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def _to_json(self):
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return jsonutils.dumps(self.obj_to_primitive())
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