With latest changes in glance to fix CVE-2024-32498 [1] we will not be able to use ISO format image with new image import workflow if image conversion plugin is enabled. The image conversion process will fail with `RuntimeError: Unable to convert from format iso`. The resulting image will remain in `importing` state and it will be of now any use.

If your cloud deployment supports uploading ISO format images then either you can disable image_conversion plugin (need to add process on how to disable it) or you can use traditional image creation process to upload the ISO format image. (i.e. Use glance image-create --name ISOImage --disk-format iso --container-format bare --file myfile.iso).

[1] https://bugs.launchpad.net/nova/+bug/2059809