Docker

A solid Docker reference that covers the practical stuff you actually need: writing efficient Dockerfiles with multi-stage builds, debugging containers with logs and exec commands, and managing Compose stacks without shooting yourself in the foot. It pushes specific image tags over latest, emphasizes security basics like non-root users, and warns against common mistakes like baking secrets into layers or ignoring build context size. The guidance is opinionated in a good way, like using Alpine images and combining RUN commands to keep layers lean. If you're writing Dockerfiles by copying Stack Overflow answers and hoping for the best, this gives you a coherent mental model instead.

Install to Claude Code

npx -y skills add rightnow-ai/openfang --skill docker --agent claude-code