Dockerfile Generator
Visually generate Dockerfile with multiple language preset templates, one-click copy or download.
Preset Templates
Build Configuration
Environment Variables
Dockerfile Content
FROM node:18-alpine WORKDIR /app COPY package*.json ./ RUN npm install COPY . ./ EXPOSE 3000 CMD ["npm", "start"]
Usage Guide
Features
Dockerfile Generator is a visual tool for building Docker container configuration files. By filling in parameters such as base image, working directory, dependency installation, exposed ports, and start commands through a form, it automatically generates Dockerfile-compliant build files. It supports preset templates for Node.js, Python, Go, Java, Rust, Nginx, and more, with custom image and environment variable configuration.
Steps
1. Select a preset template to quickly fill common configurations, or type keywords in the search box for fuzzy matching; 2. Modify parameters such as base image, version, working directory, and install commands based on your project; 3. To configure environment variables, click the "Add" button to enter them one by one; 4. Preview the generated Dockerfile content below in real-time; 5. Click "Copy" to copy to clipboard, or "Download" to save as a Dockerfile file.
Notes
The start command is automatically converted to the JSON array format CMD ["cmd", "arg1", "arg2"]; environment variables are output as ENV KEY=VALUE. It is recommended to inject sensitive information (such as passwords and keys) at runtime rather than writing them into the Dockerfile; it is recommended to prefer alpine or slim variants for base images to reduce image size; in production environments, add --production or --no-dev parameters after the install command to exclude dev dependencies.