Deployment Automation for Micro Frontends

Deployment automation is a crucial aspect of micro frontends, as it enables teams to release features independently and more frequently. This lesson will cover the essential components of deploying micro frontends automatically.

• Micro Frontends: An architectural style where a frontend application is decomposed into smaller, independent pieces.
• Deployment Automation: The process of automating the release of software to production environments.
• CI/CD: Continuous Integration/Continuous Deployment practices that automate the testing and deployment process.

3.1 Setting Up CI/CD Pipeline

To automate deployment, you first need to set up a CI/CD pipeline. Here’s a basic outline:

1. Choose a CI/CD tool (e.g., Jenkins, GitHub Actions).
2. Create a pipeline configuration file (e.g., .github/workflows/deploy.yml).
3. Define the build steps:
   - Install dependencies
   - Run tests
4. Define deployment steps:
   - Build the micro frontend
   - Deploy to a staging environment
   - Run acceptance tests
   - Deploy to production if tests pass

3.2 Code Example

Here’s an example of a GitHub Actions workflow for deploying a micro frontend:

name: Deploy Micro Frontend

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Code
        uses: actions/checkout@v2

      - name: Install Dependencies
        run: npm install

      - name: Run Tests
        run: npm test

      - name: Build
        run: npm run build

      - name: Deploy
        run: ./deploy.sh

• Ensure your CI/CD pipeline is fast and efficient.
• Use feature flags to control the deployment of new features.
• Automate rollback procedures in case of deployment failures.
• Regularly monitor and log deployment metrics.