Hi, There is the following spec for review: https://review.openstack.org/#/c/249950/ for allowing the modification of protected properties with service tokens in Glance. John & Stuart suggest using service tokens for the following Nova spec: https://review.openstack.org/#/c/206431/ (Inheritable admin image properties). It would be great to see some Nova input on the Glance spec taking into consideration the proposed Nova spec. Thanks, Niall Bunting