dockerfile-gen

What This Skill Does

The dockerfile-gen skill is an intelligent assistant designed to automate the creation of production-ready Dockerfiles. It eliminates the complexities of containerization by analyzing your local project structure to identify your technology stack—whether it is Node.js, Python, Go, or others. Beyond simple generation, it implements industry-standard best practices, including multi-stage builds to drastically reduce image sizes, efficient layer caching strategies, security hardening, and non-root user configuration. By utilizing this skill, developers ensure their applications are containerized correctly from day one, minimizing security vulnerabilities and deployment overhead.

Installation

To integrate this skill into your environment, use the OpenClaw terminal command. Ensure you have Node.js 18 or higher installed on your system. Run the following command:

clawhub install openclaw/skills/skills/lxgicstudios/ai-dockerfile

Once installed, ensure your OPENAI_API_KEY environment variable is configured to allow the agent to process project context and generate high-quality, optimized container configurations.

Use Cases

This skill is perfect for developers moving from local development to production, teams standardizing their CI/CD pipelines, and engineers looking to optimize existing bloated images. It excels in environments where speed, security, and small image footprints are critical. Whether you are deploying a simple microservice or a complex polyglot application, the generator adapts to your specific needs, handling .dockerignore files and optional docker-compose.yml creation to streamline local orchestration.

Example Prompts

1. "Analyze my project in the current directory and generate an optimized, secure Dockerfile with a multi-stage build for my Node.js application."
2. "Create a production-ready Dockerfile for my Python script, using a slim base image, and generate a corresponding docker-compose.yml file for my development environment."
3. "Generate a Dockerfile for this repository using node:20-alpine as the base image and include best practices for non-root execution and health checks."

Tips & Limitations

To get the best results, ensure your project directory is clean and clearly organized. The skill relies on detecting package manifests (like package.json, requirements.txt, or go.mod). While it handles most standard configurations, highly customized or esoteric build processes might require minor manual adjustments after generation. Always review the outputted Dockerfile before running build commands in sensitive environments to ensure environment variables and secret management practices align with your organization's security policies.