Your hard drive is full of containers and images from previous Docker builds.
Learning Docker: How to Remove Unused Containers and Images
baseimage-docker saves me time by fixing the problems I haven’t realized yet.
Learning Docker: Using Phusion’s Base Image
One can create an image using a script called a Dockerfile.
Learning Docker: Creating a base image using a Dockerfile
One of the things I’ve struggled with learning this tool is not having a good mental model of the terms used in the documentation.
Learning Docker: Getting the Names Right