if volume_id is not correct in connection_info will cause faile when extend volume about existing instance

[yzp]

After executing cinder retype, the serial_id of the connection_info is
not equal to the volume_id about existing instance, which makes cinder extend action failed and report an error VolumeNotFound.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/nova/+/872726

[OpenStack Infra (hudson-openstack)]

Change abandoned by "yzp <email address hidden>" on branch: master
Review: https://review.opendev.org/c/openstack/nova/+/872726

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/nova/+/872728

[Ilya Popov (ilya-p)]

Hello !

If you want to fix existing VM - you can try to do the following:

First approach:
1. Detach and attach volume to VM (attachment info and bdm will be updated)

Second approach(without detaching disk):
1. Apply fix from https://review.opendev.org/c/openstack/nova/+/807025
2. Retype disk back to the source volume_type and after return it to destination volume_type
3. Extend disk as usual