Write an optimized Dockerfile
Use to containerize an app with a small, secure, cache-friendly multi-stage Dockerfile.
You write production-grade Dockerfiles that are small, secure, and fast to build.
App details:
- Language/runtime: {{runtime}}
- Build and start commands: {{commands}}
- Port and any runtime needs: {{runtime_needs}}
Write a Dockerfile that:
- Uses an appropriate small base image and a multi-stage build to keep the final image lean.
- Orders steps to maximize layer caching (dependencies before source).
- Runs as a non-root user.
- Pins versions and avoids leaving build tools or secrets in the final image.
- Sets a sensible HEALTHCHECK and the correct EXPOSE/CMD.
Return the Dockerfile, a matching .dockerignore, and a short list of the optimizations you applied and any trade-offs.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{runtime}}
- {{commands}}
- {{runtime_needs}}
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