Currently we deploy code to servers in a various ways:

• freebsd package
• freebsd ports
• part of config files and static just svn up'ed and a symlink is changed to new upped folder

The distribution of freebsd packages to target servers is done through custom tool that uses ssh.

I am looking for a code deploy system that will allow:

• deploy several packages (freebsd or linux) atomic (ether deploy all or none of them to server)
• can save a history of last stable version - so in case of bad deploy i can easily rollback to last working version all servers
• ease deployment of config and static files - and integrate those into atomic deploy/rollback system.
• should work with freebsd or linux (apt-get system)