cache

In this post, we’ll walk through Docker image layers and the caching around them from the point of view of a Docker user. I’ll assume you’re already familiar with Dockerfiles and Docker concepts in general. ✌️ The two axioms of Docker layers There are two key concepts to understand, from which everything else is deduced. Let’s call them our axioms. Axiom 1 Every instruction in a Dockerfile results in a layer1....