Comment 12 for bug 1884312

The vault charm does have some support via its interface for CMR:

https://github.com/openstack-charmers/charm-interface-vault-kv/blame/master/provides.py#L72

reactive charms should be setting the unit_name key automatically:

https://github.com/openstack-charmers/charm-interface-vault-kv/blob/master/requires.py#L54

however I can't see equivalent changes in nova-compute, swift-storage or ceph-osd which means they will not see the response correctly in a CMR deployment.