Update image_base_image_ref during rebuild.
In different location we assume system_metadata.image_base_image_ref exists, because it is set during instance creation in method _populate_instance_for_create But once instance is rebuild, all system_metadata image property a dropped and replace by new image property and without setting back image_base_image_ref. This change propose to set image_base_image_ref during rebuild. In specific case of shelve/unshelve in Qcow2 backend, image_base_image_ref is used to rebase disk image, so we ensure this property is set as instance may have been rebuild before the fix was apply. Related-Bug: #1732428 Closes-Bug: #1893618 Change-Id: Ia3031ea1f7db8b398f02d2080ca603ded8970200
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@ -3534,6 +3534,8 @@ class API(base.Base):
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new_sys_metadata = utils.get_system_metadata_from_image(
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image, flavor)
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new_sys_metadata.update({'image_base_image_ref': image_id})
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instance.system_metadata.update(new_sys_metadata)
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instance.save()
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return orig_sys_metadata
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@ -4170,6 +4172,14 @@ class API(base.Base):
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hypervisor.
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"""
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instance.task_state = task_states.SHELVING
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# NOTE(aarents): Ensure image_base_image_ref is present as it will be
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# needed during unshelve and instance rebuild done before Bug/1893618
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# Fix dropped it.
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instance.system_metadata.update(
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{'image_base_image_ref': instance.image_ref}
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)
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instance.save(expected_task_state=[None])
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self._record_action_start(context, instance, instance_actions.SHELVE)
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@ -9045,6 +9045,7 @@ class ComputeAPITestCase(BaseTestCase):
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'image_ramdisk_id': uuids.ramdisk_id,
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'image_something_else': 'meow',
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'preserved': 'preserve this!',
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'image_base_image_ref': image_ref,
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'boot_roles': ''},
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sys_meta)
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