The Azure File Service protocol offers a RESTful interface for files and directories which are simultaneously exported via SMB.

Ceph already provides separate (S3 compatible) REST and SMB (Samba) gateways, but they expose storage object via different layers and as a result don't allow for cross protocol access to the same data. Adding an Azure File Service compatible RESTful interface for CephFS would allow for the same data to be accessed via SMB and HTTPS/REST.