Comment 8 for bug 1889729

Sorry for the late reply.
I have updated for both charm and the simplestream snap package.
The approach is a bit different now, and this utilizes the "image_conversion" function available in Glance.
https://bugs.launchpad.net/charm-glance/+bug/1899767

At the moment, the above Glance fix is only available in the -next charm[0].
So the MPs that I have raised will be only usable with the -next charm at the moment.

[0] https://jaas.ai/u/openstack-charmers-next/glance/469#charm-config-image-conversion