Dockmate

Dockmate is a versatile CLI tool designed to simplify Docker workflows for JavaScript-based projects. It streamlines tasks like generating Dockerfiles, building Docker images, and running containers. With support for frameworks such as React, Angular, Next.js, Vue.js, and more, Dockmate is your go-to helper for containerizing applications effortlessly.

Installation

npm i dockmate

OR If dockmate doesn't work then install it globally.

npm i -g dockmate

Features

• Framework Detection: Automatically detects the framework of your project and generates a tailored Dockerfile.
• Interactive UI: Step-by-step guided Dockerfile creation for users new to Docker.
• Custom Dockerfile Generation: Supports React, Angular, Node.js, Next.js, Vue.js, and other major JavaScript frameworks.
• Live Dockerfile Generation: Supports on fly Dockerfile generation. It checks changes in the repository and generates Dockerfile.
• Docker Image Management: Build Docker images directly from your project’s Dockerfile or generate one if missing.
• Container Management: Easily run Docker containers with custom configurations for ports, environment variables, and more.
• Extensibility: Plugin architecture allows adding new features effortlessly.

Commands

CLI Usage

Dockmate offers several commands to manage Docker workflows. Below is a list of commands, their descriptions, and example outputs:

1. Interactive Dockerfile Initialization

Guides you through an interactive setup to generate a Dockerfile.

Command :

dockmate init

Output :

? What framework does your project use? (Use arrow keys)
  react
  angular
  vuejs
  nextjs
  node
? What port does your application listen on? 3000
? What is the entry point for your application? index.js
? What version of Node.js should be used? 18
? Does your project use a .env file? Yes
? Do you want to take backup of the Dockerfile? Yes
? Do you want to preview the Dockerfile content? Yes
--- Dockerfile Preview ---
## DOCKERFILE CONTENT
? Do you want to save this Dockerfile? Yes
[INFO] Dockerfile created successfully!

2. Generate Dockerfile

Automatically generates a Dockerfile based on project dependencies.

Command :

dockmate generate

Options

• --framework Specify the framework (react, angular, node, nextjs, vuejs, sevelte, gatsby).
• --nodeVersion Specify Node.js version (default: 18).
• --port Specify application port (default: 3000).
• --entryPoint Specify entry point file (default: index.js).
• --preview Specify to Preview the Dockerfile content or not (default: false).
• --backup Specify whether to backup the Dockerfile (default: false).

Example

dockmate generate --framework=node --nodeVersion=16 --port=4000 --entryPoint=app.js --preview

Output

[INFO] Generating Dockerfile for node...
[INFO] Dockerfile created successfully!

3. Backup Dockerfiles

You can take backup of your dockerfiles under /.dockmate/backups directory.

Command :

dockmate backup

Output :

[INFO] Backup saved: /yourpath/.dockmate/backups/Dockerfile-2025-01-07T10-28-11-145Z.bak

4. Undo/Restore Dockerfile

This will restore the Dockerfile to its latest or specific Dockerfile backup.

Command :

dockmate undo
// OR
dockmate undo Dockerfile-2025-01-07T10-28-11-145Z.bak

Output :

[INFO] Restored backup: /yourpath/.dockmate/backups/Dockerfile-2025-01-07T10-28-11-145Z.bak

5. Delete all Backups

This will delete the Backup files from /.dockmate/backups/ directory

Command :

dockmate delete-backups

6. Build Docker Image

Builds a Docker image for your project.

Command :

dockmate build

Options

• --tag Specify image tag (default: latest).
• --framework Specify framework for the Dockerfile.
• --dockerfilePresent Indicate if the Dockerfile is already present (default: true).
• --name Specify Docker image name (default: dockmate-image-).

Example

dockmate build --tag=myapp:1.0 --framework=react --name=myapp-image

Output

[INFO] Building Docker image with tag: myapp:1.0...
[INFO] Docker image built successfully!

7. Run Docker Container

Command :

dockmate run --image=<imageName>

Options

• --port Specify port mapping (host:container format).
• --env Set environment variables (KEY=value format).
• --name Specify container name.

Example

dockmate run --image=myapp:1.0 --port=8080:3000 --env=NODE_ENV=production --name=myapp-container

Output

[INFO] Starting container myapp-container...
[INFO] Container started successfully!

8. Development Mode (Live Reload)

Command :

dockmate dev

Interactive Options :

? Enter the files or directories to watch: ./src, ./index.js
? Enter the path to the Dockerfile: ./Dockerfile
? Enter the Docker image name: dockmate-dev
? Enter the name of the Docker container: dockmate-dev-container
? Should the container restart automatically on changes? Yes
[INFO] Development mode started. Watching files for changes...

Programmatic Usage

Dockmate provides several utility functions that can be integrated into your projects. Below is a structured way to use them programmatically:

1. Detect Framework

Automatically detect the framework your project uses.

// import module
const { detectFramework } = require('dockmate');

// detect the framework of the working project
(async () => {
  try {
    const framework = await detectFramework();
    console.log(`Detected Framework: ${framework}`);
  } catch (error) {
    console.error(`[ERROR] Framework detection failed: ${error.message}`);
  }
})();

2. Generate Dockerfile

Generate a Dockerfile for your project based on options.

// import module
const { generateDockerfile } = require('dockmate');

// generate the dockerfile based on the framework and options
(async () => {
  try {
    const options = {
      nodeVersion: '18',          // Node.js version
      port: 3000,                // Application port
      entryPoint: 'index.js',    // Application entry point
      useEnv: true,              // Whether to include .env file
    };

    await generateDockerfile('react', options);
    console.log('[INFO] Dockerfile created successfully!');
  } catch (error) {
    console.error(`[ERROR] Dockerfile generation failed: ${error.message}`);
  }
})();

3. Build Docker Image

Build a Docker image for your project.

// import module
const { buildImage } = require('dockmate');

// build docker image using the options
(async () => {
  try {
    const options = {
      tag: 'myapp:1.0',          // Image tag
      framework: 'react',        // Framework used
      dockerfilePresent: true,   // Whether Dockerfile already exists
      imageName: 'myapp-image',  // Image name
    };

    await buildImage(options);
    console.log('[INFO] Docker image built successfully!');
  } catch (error) {
    console.error(`[ERROR] Image build failed: ${error.message}`);
  }
})();

4. Run Docker Container

Run a Docker container from an image with customizable options.

// import module
const { runContainer } = require('dockmate');

// runContainer using options
(async () => {
  try {
    const options = {
      imageName: 'myapp:1.0',              // Image name
      ports: [{ host: 8080, container: 3000 }], // Port mapping
      env: { NODE_ENV: 'production' },    // Environment variables
      containerName: 'myapp-container',   // Name of the container
    };

    await runContainer(options);
    console.log('[INFO] Docker container started successfully!');
  } catch (error) {
    console.error(`[ERROR] Container start failed: ${error.message}`);
  }
})();

5. Development Mode (Live Reload)

Run a Docker container in development mode with live reload for specified paths.

// import module
const { startDevMode } = require('dockmate');

// use options to start the dev mode
(async () => {
  try {
    const options = {
      watchPaths: ['./src', './index.js'], // Files or directories to watch
      dockerfilePath: './Dockerfile',      // Path to Dockerfile
      imageName: 'dev-image',             // Image name for development
      containerName: 'dev-container',     // Container name
      autoRestart: true,                  // Auto-restart on changes
    };

    await startDevMode(options);
    console.log('[INFO] Development mode started. Watching for changes...');
  } catch (error) {
    console.error(`[ERROR] Development mode failed: ${error.message}`);
  }
})();

Again prefer using dockmate CLI

Contributing

Contributions are welcome! Here’s how you can help, read the Contribution-guide.md file. Feel free to report bugs or suggest new features by opening an issue.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgments

Big thanks to the open-source community for inspiration and support. Let’s build something amazing together!

Happy coding! 🚀