If anyone gets that done it will make us very happy! We run our servers on CoreOS, putting it on the devices as well would be awesome. AFAICT it's about getting etcd to run on the Pi, as well as any other small projects that make up CoreOS.

I wonder if Docker/Go will work on uClibc; busybox + docker would make for a very small image indeed.

However, I think there are better ARM targets for Docker, but for publicity and to get the ball rolling - you can't go past the Pi.

I looked for something like this myself - the closest I think you could get for now is a bespoke, stripped-down Gentoo with Docker. That said, there's a conversation taking place on the CoreOS mailing list that looks promising (https://groups.google.com/forum/#!topic/coreos-dev/cioNy0GjC...).

I haven't seen anything yet, but I'm very interested in this area – I've got an application that uses a bunch of RasPi nodes, and running anything like Raspbian or even PiLFS feels too heavyweight for what I ultimately want (a single networked app that runs on startup).