This is a post I wrote for Stackify a while back. You can find the original here. Docker is one of the most exciting technologies I’ve seen in a long time. I enjoy working with it. Docker is a platform for packaging, deploying, and running applications. Docker applications run in containers that can be used on any system: a developer’s laptop, systems on premises, or in the cloud. Containerization is a technology that’s been around for a long time, but it’s seen new life with Docker.