Thanks for the help,

I modified my glance-api.conf like this but no luck, I got the same problem : Privsep daemon failed to start
[cinder]
cinder_store_auth_address = https://dashint.example.com:5000/v3
cinder_store_project_name = service
cinder_volume_type = nfstype
rootwrap_config = /etc/glance/rootwrap.conf
cinder_store_user_name = glance
cinder_store_password = glance-password

cinder_catalog_info = volumev3:cinderv3:internalURL
###cinder_store_user_name = cinder
###cinder_store_password = cinder-password 



I thought once cinder has the capability to read & write into the backend, glance will just use it to upload the images!!

Another thing, about the credentials, which ones should I use? Glance's or cinder's I thought it should be cinder's !! but in your example @Sean you used {{ glance_keystone_user }} and  {{ glance_keystone_password }}

Lastly I searched how to launch a privileged container in kolla but I didn't find anything.

Regards.