Tessel — a microcontroller that runs Javascript. For those who can’t handle C.</troll>
Docker Misconceptions — This is not impossible and can all be done – several large companies are already using Docker in production, but it’s definitely non-trivial. This will change as the ecosystem around Docker matures (via Flynn, Docker container hosting, etc), but currently if you’re going to attempt using Docker seriously in production, you need to be pretty skilled at systems management and orchestration.