deis/deis — pull request #1676 by Xe (2014-08-22 17:50:02+00:00)
Title: fix(userdata): clean up docker cruft weekly

Docker is fairly messy when you pull a new version of an image from a repository, or build a new one for that matter. It accidentally creates a lot of orphaned containers and images. This is a port of some utilities from my dotfiles that should help with disk usage on the cluster machines. This does not currently clean the builder.