I work for dotCloud (the company which started Docker), and I was at YaC (Yandex tech conference; the equivalent of Google I/O in Eastern Europe, if you will), and had the opportunity to discuss this with the Yandex team. Here are some extra info (that can easily be found on the web, so nothing sensitive here)

- They released the Docker plugin shortly before the conference [1] - Yandex uses a distributed storage system called Elliptics [2] in many places, and they implemented an Elliptics backend for the Docker registry (the code is out there somewhere. They contributed the Elliptics backend to the Docker registry repo a couple of days ago [3]. - Cocaine is used to power various things inside Yandex, like the Yandex.Browser backend. This backend can sustain very high loads (10-100k req/s). I discussed with their Ops team, since they had specific questions about how to identify (and remove) potential performance bottlenecks in Docker networking stack. (Good news: you can achieve native network performance within containers with zero overhead!)

I'm considering writing Dockerfiles for Elliptics and Cocaine (as soon as I can find some spare time to do so...) but I would also be happy to help if other people want to do that (I'm actively monitoring the docker-user mailing list [4] so don't hesitate to get in touch through here).

[1] https://github.com/cocaine/cocaine-plugins/tree/master/docke... [2] https://github.com/reverbrain/elliptics [3] https://github.com/dotcloud/docker-registry/pull/101 [4] https://groups.google.com/forum/#!forum/docker-user