Docker started out in 2012 as an open source project, originally named dotcloud, to build single-application Linux containers. Since then, Docker has become an immensely popular development tool, ...

What exactly is a container and what makes it different -- and in some cases better -- than a virtual machine? To answer this question, Joey explains why we ever needed containers in the first place.

What Is a Container and How Are Containers Used? A starting point for an exploration of containers and how they’re used is this simple definition: a container is a packaging format for a unit of ...