When joining a new team, figuring out whether a project is maintained properly often isn't easy - but there are some aspects healthy projects have in common.
To enable fast builds and efficient usage of disk space, Docker introduced the image layer model. This article is an in-depth explanation on how the layer model is implemented.
Docker does a great job when it comes to connecting containers among each other or to the outside world. This functionality is powered by pluggable network drivers.
What do these Dockerfile instructions have in common, and what are the differences? When should I use each instruction?
The build speed for a Docker image largely depends on whether the instructions are cached or not. Understanding the build cache is crucial for building efficient images.