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[Bug 2006952] Re: Ambigous error when trying to boot SEV based instances from volume

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: OpenStack Infra <2006952@xxxxxxxxxxxxxxxxxx>
Date: Tue, 28 Feb 2023 20:28:16 -0000
Reply-to: Bug 2006952 <2006952@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Reviewed:  https://review.opendev.org/c/openstack/nova/+/873388
Committed: https://opendev.org/openstack/nova/commit/54faea0196c96ae55a58cab4326277d48a59afb0
Submitter: "Zuul (22348)"
Branch:    master

commit 54faea0196c96ae55a58cab4326277d48a59afb0
Author: Alexey Stupnikov <aleksey.stupnikov@xxxxxxxxx>
Date:   Fri Feb 10 17:14:17 2023 +0100

    Fix logging in MemEncryption-related checks
    
    Currently Nova produces ambigous error when volume-backed instance
    is started using flavor with hw:mem_encryption extra_specs flag:
    ImageMeta doesn't contain name if it represents Cinder volume.
    
    This fix sligtly changes steps to get image_meta.name for
    some MemEncryption-related checks where it could make any
    difference.
    
    Closes-bug: #2006952
    Change-Id: Ia69e7cb18cd862f01ecfdbdc358c87af1ab8fbf6


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2006952

Title:
  Ambigous error when trying to boot SEV based instances from volume

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  More image_meta.name use in hardware.py causing failures when
  presented with an empty ImageMeta object:

  $ openstack flavor show  m1.sev_med
  +----------------------------+--------------------------------------+
  | Field                      | Value                                |
  +----------------------------+--------------------------------------+
  | OS-FLV-DISABLED:disabled   | False                                |
  | OS-FLV-EXT-DATA:ephemeral  | 0                                    |
  | access_project_ids         | None                                 |
  | description                | None                                 |
  | disk                       | 2                                    |
  | extra_specs                | {'hw:mem_encryption': 'True'}        |
  | id                         | 3952db4d-e71a-4669-9bb7-666adaef6c36 |
  | name                       | m1.sev_med                           |
  | os-flavor-access:is_public | True                                 |
  | properties                 | hw:mem_encryption='True'             |
  | ram                        | 2048                                 |
  | rxtx_factor                | 1.0                                  |
  | swap                       | 0                                    |
  | vcpus                      | 4                                    |
  +----------------------------+--------------------------------------+
  $ openstack volume create --bootable --size 1 blank
  $ openstack server create --volume blank --flavor m1.sev_med --network private test
  Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <class 'NotImplementedError'> (HTTP 500) (Request-ID: req-c6d1a319-b4b0-4d1f-869c-dcbec2fd2554)

  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi [req-c6d1a319-b4b0-4d1f-869c-dcbec2fd2554 cd40fe796ff84e3a8ba5e473a6d61f05 025f8a0d412642f693782ae20ba415ec - default default] Unexpected exception in API method: NotImplementedError: Cannot load 'name' in the base class
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi Traceback (most recent call last):
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/api/openstack/wsgi.py", line 671, in wrapped
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     return f(*args, **kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 110, in wrapper
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     return func(*args, **kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 110, in wrapper
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     return func(*args, **kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/api/validation/__init__.py", line 110, in wrapper
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     return func(*args, **kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   [Previous line repeated 9 more times]
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/api/openstack/compute/servers.py", line 712, in create
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     **create_kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/hooks.py", line 154, in inner
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     rv = f(*args, **kwargs)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 1932, in create
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     requested_hypervisor_hostname=requested_hypervisor_hostname)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 1411, in _create_instance
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     block_device_mapping.root_bdm(), validate_numa=False)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 912, in _checks_for_create_and_rebuild
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     validate_numa=validate_numa)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 577, in _validate_flavor_image
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     root_bdm, validate_numa)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 723, in _validate_flavor_image_nostatus
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     validate_pci=validate_pci)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 747, in _validate_flavor_image_numa_pci
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     API._validate_flavor_image_mem_encryption(instance_type, image_meta)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/compute/api.py", line 778, in _validate_flavor_image_mem_encryption
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     hardware.get_mem_encryption_constraint(instance_type, image)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/virt/hardware.py", line 1273, in get_mem_encryption_constraint
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     _check_mem_encryption_uses_uefi_image(requesters, image_meta)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/nova/virt/hardware.py", line 1310, in _check_mem_encryption_uses_uefi_image
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     'image_name': image_meta.name}
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line 67, in getter
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     self.obj_load_attr(name)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line 603, in obj_load_attr
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi     _("Cannot load '%s' in the base class") % attrname)
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi NotImplementedError: Cannot load 'name' in the base class
  2021-06-03 12:29:28.207 12 ERROR nova.api.openstack.wsgi

  RH BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1967606

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References

[Bug 2006952] [NEW] Ambigous error when trying to boot SEV based instances from volume
From: Alexey Stupnikov, 2023-02-10