Evacuation fails due to ImageNotFound error even though instances boot from persistent volumes

Issue

• An instance boots from an attached persistent volume.

  (overcloud) [stack@undercloud-0 ~]$ openstack server show aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
  +-------------------------------------+-------------------------------------------+
  | Field                               | Value                                     |
  +-------------------------------------+-------------------------------------------+
    :
  | id                                  | aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa      |
  | image                               | bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb      |
    :
  | status                              | ACTIVE                                    |
    :
  | volumes_attached                    | id='cccccccc-cccc-cccc-cccc-cccccccccccc' | <===(*)boot from a volume
  +-------------------------------------+-------------------------------------------+
  

• Evacuation was executed.

  (overcloud) [stack@undercloud-0 ~]$ nova evacuate aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
  

• However it failed

  (overcloud) [stack@undercloud-0 ~]$ nova migration-list
  +----+--------------------------------------+------------------------+------------------------+------------------------+------------------------+--------------+-----------+--------------------------------------+------------+------------+----------------------------+----------------------------+------------+
  | Id | UUID                                 | Source Node            | Dest Node              | Source Compute         | Dest Compute           | Dest Host    | Status    | Instance UUID                        | Old Flavor | New Flavor | Created At                 | Updated At                 | Type       |
  +----+--------------------------------------+------------------------+------------------------+------------------------+------------------------+--------------+-----------+--------------------------------------+------------+------------+----------------------------+----------------------------+------------+
  | 13 | cccccccc-cccc-cccc-cccc-cccccccccccc | compute-1.example.com  | compute-0.example.com  | compute-1.example.com  | compute-0.example.com  | 10.0.0.1     | failed    | aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa | None       | None       | 2022-04-19T07:14:25.000000 | 2022-04-19T07:14:28.000000 | evacuation |
  

• The status of the instance became ERROR.
  fault shows Image XXXXX could not be found.

  (overcloud) [stack@undercloud-0 ~]$ openstack server show aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
  +-------------------------------------+------------------------------------------------------------------------------------------------------------------------------------+
  | Field                               | Value                                                                                                                              |
  +-------------------------------------+------------------------------------------------------------------------------------------------------------------------------------+
    :
  | fault                               | {u'message': u'Image bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb could not be found.', u'code': 404, u'created': u'2022-04-19T07:14:28Z'} |
    :
  | id                                  | aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa                                                                                               |
  | image                               | bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb                                                                                               |
    :
  | status                              | ERROR                                                                                                                              |
    :
  | volumes_attached                    | id='cccccccc-cccc-cccc-cccc-cccccccccccc'                                                                                          |
  +-------------------------------------+------------------------------------------------------------------------------------------------------------------------------------+
  

• Evacuation should work even if the image has been deleted because it boots from a persistent volume.