dockerfile

My Docker image for a FastAPI app is 2GB and takes 5 minutes to build. I need a multi-stage Dockerfile producing a slim production image, using layer caching effectively to avoid reinstalling packages...

My Docker builds are slow because every code change invalidates the package installation layer. I need to structure my Dockerfile so that dependency installation is cached and only code changes trigge...

Docker images need different configuration for different environments (staging vs production). Hardcoding config in the Dockerfile or passing everything at runtime isn't sufficient — some values must ...