CI/CD with GitHub Actions

Introduction

Automate workflows with GitHub Actions for continuous integration and deployment.

Basic Workflow

# .github/workflows/ci.yml
name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  test:
    runs-on: ubuntu-latest
    
    steps:
      - uses: actions/checkout@v3
      
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.11"
      
      - name: Install dependencies
        run: |
          pip install -r requirements.txt
      
      - name: Run tests
        run: pytest

Multi-Job Workflow

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Run tests
        run: pytest --junitxml=report.xml
      - uses: actions/upload-artifact@v3
        with:
          name: test-results
          path: report.xml
  
  deploy:
    needs: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Deploy
        run: ./deploy.sh

Practice Problems

1. Create basic CI workflow
2. Add test and lint steps
3. Set up matrix builds
4. Deploy to cloud service
5. Use secrets in workflows