Comment 0 for bug 1796372

https://docs.openstack.org/image-guide/image-metadata.html says:

   Common image properties are also specified in the /etc/glance/schema-image.json file. For a complete list of valid property keys and values, refer to the OpenStack Command-Line Reference.

which links to https://docs.openstack.org/cli-reference/glance.html#image-service-property-keys - but that redirects to https://docs.openstack.org/python-openstackclient/latest/#image-service-property-keys where unfortunately that anchor doesn't exist. I tried for a while to find the correct link so I could submit a fix, but sadly failed...