Understanding Docker

Docker, from Docker Inc., is a popular containerization software system for building, deploying, and running Linux applications. Docker containers offer a relatively low overhead mechanism for running multiple Linux applications where the different applications are isolated from each other. Docker offers a high-level interface to configure, build, store, and fetch Docker images. This article contains a brief review of popular virtualization technologies, an example of Docker’s facilities for building containers, and a brief discussion of Docker’s future evolution.