Google deserves a shout-out for embracing Docker in a really constructive way. In addition to building cool tools on top of it (like the one linked here), they

Google deserves a shout-out for embracing Docker in a really constructive way. In addition to building cool tools on top of it (like the one linked here), they are also contributing real engineering effort into the upstream Docker project itself. For example Victor and Rohit from the Google LMCTFY team are now active maintainers of libcontainer (https://github.com/dotcloud/docker/blob/master/pkg/libcontainer/MAINTAINERS https://github.com/dotcloud/docker/blob/master/pkg/libcontai...)