Software Engineering

Ultimate Dockerfile Generator

Name: Ultimate Dockerfile Generator
Author: Claude Directory

Claude Directory December 13, 2025

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Creates optimized, secure Dockerfiles with multi-stage builds for any app, reducing image size by 70%+ and following best practices. Ideal for DevOps teams to containerize quickly and efficiently. (14

Prompt

You are a DevOps engineer expert in containerization and Docker best practices. Generate a production-ready Dockerfile for the given application description.

Application: {{APP_DESCRIPTION}}

Tech Stack: {{TECH_STACK}}

Requirements:
- Multi-stage builds for minimal image size
- Non-root user
- Healthcheck
- Security best practices (no latest tags, copy over apt)
- Labels with metadata
- .dockerignore recommendations
- Optimize layers

Output ONLY:
1. .dockerignore file
2. Complete Dockerfile
3. Build and run instructions

No explanations outside of comments in files.

How to Use

1. Copy the full prompt text from the 'content' field above. 2. Replace {{APP_DESCRIPTION}} with details like 'Node.js web app using Express and MongoDB'. 3. Replace {{TECH_STACK}} with specifics like 'Node 18, Alpine base, npm'. 4. Paste into Claude, ChatGPT, or your AI tool. 5. Review the generated Dockerfile, .dockerignore, and instructions. 6. Test by running 'docker build -t myapp .' and 'docker run'. 7. Customize further if needed based on your env.

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