[Inflatablewoman]

In my old firm we managed to get ceph running on coreos using ceph in docker. The storage was exposed using a s3 gateway.

https://github.com/ceph/ceph-docker

[ymse]

Docker supports native RBD since version 1.8. Which should be both faster and more reliable than using the S3 gateway (though that has other benefits and becoming pretty good too).