What Is Docker, and Why Does It Matter for Your Business?

Docker, in Plain Terms

Docker packages an application together with all its dependencies into a portable unit called a container. Docker's layer caching means rebuilding an image only rebuilds the layers that actually changed, making rebuilds much faster.

What This Means for Your Business

A Dockerfile is a step-by-step recipe for building an image — from choosing a base OS to installing dependencies. A non-technical founder doesn't need to master the technical details of Docker, but knowing these few points helps you make more informed decisions when talking to your technical team.