[CentOS] Back up to Rackspace Cloud Files from a CentOS server

Hi all,

I'm looking for a solution to be able to back up to a Rackspace Cloud
Files account from a CentOS server.

I have set up Duplicity but have found out that the back-ups are in
GPG-encrypted volumes. There are also GUI clients for Windows and Mac
but they're not what I need.

I'm looking for something like a command-line tool that will let me
push directories on the server (via rsync perhaps) to the Rackspace
Cloud Files container. Being able to run it non-interactively on the
shell is a requirement because I need to be able to run backup scripts
via cron.

Any help would be appreciated. Thanks.

-Matt

-- 
Stand before it and there is no beginning.
Follow it and there is no end.
Stay with the ancient Tao,
Move with the present.