tree 01f6744cd46805de383360973ebc73e294f5fde9
parent bd02c7355cb6bf327d109ef01f79c13cd2b263c6
author Biser Milanov <biser.milanov@storpool.com> 1737400002 +0200
committer Biser Milanov <biser.milanov@storpool.com> 1737544286 +0200

test_instances_with_cinder_volumes: Make sure attachments in guest are correct

Sometimes, when attaching multiple devices, the device mapping that
OpenStack and libvirt expect in the guest is not correct. Change the
attachment logic to check correct ordering and log a warning otherwise.

The `dev` attribute of the `target` element in the libvirt device XML is
just a hint and not guaranteed to be how the OS maps the device [1]. It
is usually suggested to use `/dev/disk/by-id/` to be sure about the
underlying device, but CirrOS currently does not populate `/dev/disk/`.

[1]: https://libvirt.org/formatdomain.html#hard-drives-floppy-disks-cdroms

Closes-Bug: #2095336
Change-Id: Iff18b802ce22743c80a76099b27a479b6c3b671a