This technology is called Docker. You can think of it as a shipping container for things on the internet–a tool that lets online software makers neatly package their creations so they can rapidly move them from machine to machine to machine. On the modern internet–where software runs across hundreds or even thousands of machines–this is no small thing. Google sees Docker as something that can change the way we think about building software, making it easier for anyone to instantly tap massive amounts of computing power. In other words, Google sees Docker as something that can help everyone else do what it has been doing for years.
"Google and Docker are a very natural fit," says Eric Brewer, a kind of über-engineer inside Google. "We both have the same vision of how applications should be built."