When Ceph rbd is used for ephemeral disks and image storage, we can avoid local disk is it fixed in Openstack Juno ?

Issue

• When Ceph rbd is used for ephemeral disks and image storage, we can avoid local disk is it fixed in Openstack Juno ?
• Patching glace to fully use ceph snapshots
• We are running Openstack Juno and the default version of glance saves image snapshots to the local file system before recopying it to another ceph snapshot. Is there a recommended patch to glance so it will directly use ceph for all storage ?