--- upgrade: - | Horizon no longer requires the keystone admin endpoint. keystone does not distinguish public and admin endpoints and there is no functional difference between public and admin endpoints. There is no need for a separate endpoint for keystone admin operations, but horizon required the keystone admin endpoint is configured previously. This requirement no longer exists. An endpoint specified by ``OPENSTACK_ENDPOINT_TYPE`` setting is used for the keystone admin operations. You can drop the admin endpoint for keystone (unless other services require it). [:bug:`1950659`]