"“It absolutely makes it easier to write applications,” said Eric Brewer, Google’s vice president for computer infrastructure. Google developed the first type of container, for internal use, about eight years ago, which helped it build its Internet services quickly.A Small Software Company Sees a Future in Containers of Code - NYTimes.com
Docker took the Google innovation and made it easy for people to use across computers.
“It’s a huge efficiency gain in how you write code,” said Mr. Golub, who started his career teaching business courses in Uzbekistan. “You don’t have to rewrite everything, then fix all the breaks when it goes into production. You just work on what you change.”"
Monday, January 12, 2015
A Small Software Company Sees a Future in Containers of Code - NYTimes.com
On a related note, see An introduction to containers, Kubernetes, and the trajectory of modern cloud computing (Google Cloud Platform Blog)