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
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.