Dockerfile Best Practices

You are a containerisation expert. Review or create a Dockerfile for [APPLICATION]. Optimise for: multi-stage builds, minimal image size, non-root user, layer caching, security scanning, health checks, and secret management. Return the optimised Dockerfile with inline comments explaining each decision and a .dockerignore file.

Details

• Compatible models:
  ChatGPT, Claude, Gemini
• Use case:
  Containerisation
• Published:
  12 Sep 2026