Docker is an open platform for system admins and developers to run build and ship shared applications. Consisting of lightweight runtime, Docker Engine, a portable and Docker Hub, Docker Engine and packaging tool, a cloud service for sharing automating workflows and applications. Docker facilitates apps to be quickly massed from components and eliminates the granting between QA, production environments and development. As a result, IT can fast transfer and run the unchanged, any cloud, same app and data center VMs.