Dockerfile Generator
Generate a production-ready, multi-stage Dockerfile and .dockerignore for Node.js, Next.js, Python, Go, Java, or a static site — in your browser.
How this works
Pick an app type and a few options to get a production-ready, multi-stage Dockerfile and a matching .dockerignore — generated entirely in your browser, using current Docker best practices (multi-stage builds, slim runtime base images).
Common uses
- Containerizing a new service without hand-writing a Dockerfile from scratch
- Learning the multi-stage build structure for a stack you haven’t dockerized before
- Getting a sane .dockerignore starting point for a new project
FAQ
Does this cover every possible project setup?
No — it’s a solid, idiomatic starting point per stack, not a framework detector. You’ll likely need to adjust entry commands or paths for your project’s specifics.
Why is there no non-root USER instruction?
Cut from this version since the correct syntax differs by base image family (Alpine vs. Debian-based). Add a non-root user before running this in production.
Does Next.js need any extra config?
Yes — the generated Dockerfile assumes output: 'standalone' is set in next.config, and includes that as a comment in the output.
Does anything I configure leave the browser?
No — the Dockerfile and .dockerignore are generated entirely client-side.