The Vagrant files we've been using have been whittled down to almost nothing -- we use Chef to provision boxes, so the vagrantfile is pretty much just "install

The Vagrant files we've been using have been whittled down to almost nothing -- we use Chef to provision boxes, so the vagrantfile is pretty much just "install Chef, forward ports, run role xxx." At that point, it just pulls the role (and cookbooks) out of the user's local chef repo -- and getting the Vagrant Berkshelf plugin running even removes the need to deal with downloading cookbooks at all.