Ubuntu: Installation Docker

Docker is a set of platform as a service products that use OS-level virtualisation to deliver software in packages called containers. Containers are isolated from one another and bundle their own software, libraries and configuration files; they can communicate with each other through well-defined channels.
A Highly Reliable, Low-Cost Way To Build, Ship, & Run Distributed Apps At Any Scale. Docker Provides Simple Commands You Can Use To Build, Start, Or Stop Containers.