Biggest use of Containers in Data Centers are Dockers, not the slacks, the software container

There were many people and companies who thought Containers would revolutionize the data center industry.  Containers have enabled a choice, but not taken over.  There is a new container that has buzz. It is not a container for hardware, but a container for software.  Called Docker.

What is Docker?

Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications. Consisting of Docker Engine, a portable, lightweight runtime and packaging tool, and Docker Hub, a cloud service for sharing applications and automating workflows, Docker enables apps to be quickly assembled from components and eliminates the friction between development, QA, and production environments. As a result, IT can ship faster and run the same app, unchanged, on laptops, data center VMs, and any cloud.

There is even a post that Docker is in hype cycle.

The Docker container hype cycles into overdrive

June 10, 2014 6:17 AM EDT

Here comes the 'production-ready' Docker 1.0.

Docker, Inc. announces its eponymous cloud container product. Based on the open-source project of the same name, the company claims it's now ready for prime time.

In addition to Google, Amazon and Microsoft are moving quickly to accept Dockers.
Docker is a particular format for Linux containers that caught on with developers since its inception 15 months ago. Both Amazon Web Services and Microsoft are moving quickly to make Docker containers welcome guests on their respective cloud hosts.

What is the difference between VMs and Docker?  You don’t ship the OS around.  Makes so much sense.