You can delete buckets and their contents with S3 Tools and Ceph's own board tools.
via S3 API
With the popular command line tool s3cmd, you can delete buckets with content via S3 API call as follows:
s3cmd rb --rekursives s3: // clyso_bucket
via radosgw-admin command
Radosgw-admin talks directly to the Ceph cluster and does not require a running radosgw process and is also the faster way to delete buckets with content from the Ceph cluster.
radosgw-admin bucket rm --bucket=clyso_bucket --purge-objects
If you want to delete an entire user and his or her data from the system, you can do so with the following command:
radosgw-admin user rm --uid=<username> --purge-data
Use this command wisely!