RGW: The Extensible, Retargetable, Scriptable S3 (and Swift!) Gateway of Ceph Object Storage
In 2018, the developers of RGW — the open source S3 and Swift object storage endpoint in Ceph—began work on “zipper,” a new, pluggable storage provider API, inspired in part by the loadable backend storage drivers of NFS-Ganesha, which several of those developers also maintain. Zipper drivers can present entirely new storage backends and mappings, or customize existing data paths and core server workflow through stackable filter drivers implementing a subset of the same API. In addition to Ceph cluster support, Zipper drivers