Guide

Each page solves one task. Skim for the one you need.

• Multi-stage builds copies artifacts from a build stage into a slim final image.
• BuildKit mounts scopes cache, secret, and bind mounts to the commands that need them.
• Smart apt installs packages, PPAs, and third-party repos without hand-writing apt-get update.
• The run builder composes one RUN from Python, with dynamic commands, directory scoping, and file redirects.
• Reusable helpers factors repeated setup into a context manager.
• Render from the CLI renders a recipe from the command line or from Python.

If you are new to docker-dsl, start with Getting Started.