Dockerfile Generator

Agent generation includes existing wizard settings. If environment fields contain data, use manual generation or clear those fields before using agent actions.

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Using these tools with an agent

CMD accepts a JSON string array for exec form, or a shell command with its original quoting. Empty CMD inherits the base image default. Verify package-manager and image compatibility before building.

Wizard-style interface for building a best-practice Dockerfile. Choose a base image, install packages, set environment variables, and define your container's entrypoint.

About This Tool

This tool helps you create production-ready Dockerfiles with best practices built-in. The wizard interface guides you through each step of the process, from selecting a base image to configuring your container's entrypoint.

Features:

  • Step-by-step wizard interface
  • Best practice recommendations
  • Common configuration templates
  • Real-time Dockerfile preview
  • Support for multiple base images

Privacy Note: Processing runs in your browser. When you use an agent, inputs and results may be shared with your agent provider. Avoid entering production secrets into agent-assisted drafts.

Step 1: Select a Base Image

The base image is your starting point - it includes the operating system and often the runtime environment your application needs.

Common base images:

  • node:24-alpine - Lightweight Node.js environment
  • python:3.14-slim - Minimal Python environment
  • ubuntu:latest - Latest Ubuntu OS
  • nginx:alpine - Lightweight web server

Tips:

  • Use alpine or slim variants for smaller image sizes
  • Always specify a version tag (e.g., 24 in node:24-alpine)
  • Avoid using latest tag in production for better stability