MetaMask Extension E2E Docker Image

This image is built for running MetaMask Extension end-to-end (E2E) tests.
It includes:

• Node 22.15 (with browsers)
• Yarn 4.9.1 (via Corepack)
• zstd compression tool
• Xvfb for headless GUI environments

🚀 Using the Image

Pull from GHCR

# Latest version
docker pull ghcr.io/MetaMask/metamask-extension-e2e-image:latest

# Specific version
docker pull ghcr.io/MetaMask/metamask-extension-e2e-image:v1.0.0

Authentication

For public access, you can use any GitHub token:

# Login to GHCR
echo $GITHUB_TOKEN | docker login ghcr.io -u $GITHUB_USERNAME --password-stdin

# Or using GitHub CLI
gh auth token | docker login ghcr.io -u $GITHUB_USERNAME --password-stdin

Using in CI/CD

GitHub Actions

steps:
  - name: Login to GHCR
    uses: docker/login-action@v3
    with:
      registry: ghcr.io
      username: ${{ github.actor }}
      password: ${{ secrets.GITHUB_TOKEN }}
  
  - name: Run E2E tests
    run: |
      docker run --rm -v $PWD:/workspace \
        ghcr.io/MetaMask/metamask-extension-e2e-image:latest \
        yarn test:e2e

Docker Compose

version: '3.8'
services:
  e2e-tests:
    image: ghcr.io/MetaMask/metamask-extension-e2e-image:latest
    volumes:
      - ./:/workspace
    working_dir: /workspace
    command: yarn test:e2e

🔨 Building the Image Locally

# Build for local development
docker build -t metamask-extension-e2e-local .

# Build with platform specification
docker build --platform linux/amd64 -t metamask-extension-e2e-local .

📦 Available Tags

• latest - Latest build from main branch
• v*.*.* - Tagged releases
• main - Main branch builds
• <sha> - Specific commit builds

📋 Requirements

• Docker
• GitHub account (for pulling from GHCR)
• GitHub token with read:packages permission

🐛 Troubleshooting

Authentication Issues

# Check if you're logged in
docker system info | grep -i registry

# Test image access
docker run --rm ghcr.io/MetaMask/metamask-extension-e2e-image:latest echo "Success"

Common Solutions

1. Permission Denied: Ensure your GitHub token has read:packages permission
2. Image Not Found: Check image name spelling and tag existence
3. Rate Limiting: Use authenticated requests to avoid rate limits

🏗️ Development

This image is automatically built and pushed to GHCR on:

• All branch commits (for testing and development)
• Tagged releases
• Pull requests

📞 Support

• Issues: Open an issue in this repository
• Internal: Contact via Slack #mmig-devsecops-random