For production environments, we suggest to install croit in Docker on a dedicated server or VM. croit is well tested with Debian Linux but works on any other OS with a current version of Docker. This host will be refered to as the management node within this guide.

A simple exemple to make Replication for RBD.

Based on this post from scuttlemonkey : http://ceph.com/dev-notes/incremental-snapshots-with-rbd/, here is a sample script to synchronize rbd image on a remote cluster (eg for backups). In the example below, the sync is made to an “archive” pool on the same cluster. (For remote host, you need to use ssh key.)