Open Stack

Hi,

As you might already know if you read this mailing list, I've been 
trying to push Kolla into production for a while. This issue however 
might be more Glance and Cinder related than Kolla. We're trying to 
provision an Openstack Wallaby cluster on Ubuntu using Kolla and Ceph 
pacific. The issue I now have is that, if I try to provision a Ceph 
volume from an image stored in Ceph, I get the following error :

https://pastebin.com/59EZbxKu

By looking around a bit, I figured out that this is linked to the 
following mailing list email :

https://www.spinics.net/lists/ceph-users/msg66016.html

Ceph copy on write cloning breaking because Cinder can't work 
ifshow_image_direct_url is set to true is a pretty big issue, I believe. 
It's possible that this has been talked about before, but there's no 
other trace I could find outside of that Ceph mailing list email.

Additionally, in Kolla, setting show_image_direct_url to false doesn't 
solve this issue because by default, Kolla appears to also set 
show_multiple_locations to true. By setting show_multiple_locations to 
false through a custom configuration, I am able to create volumes from 
glance Ceph images again (images have to be re-uploaded for this to work 
though). Of course, these volumes are not created through copy-on-write, 
because that's broken.

I couldn't find any bug report pertaining to these issues. If they are 
not known, then I would be happy to make a bug report. I would just like 
to verify if this is all already known or not.


-- 
Jean-Philippe Méthot
Senior Openstack system administrator
Administrateur système Openstack sénior
PlanetHoster inc.