Github 3 - Real-World GitHub Actions Workflow Example

 

Project Goal: Node.js App → Build → Test → Dockerize → Push to ECR → Deploy with Terraform to AWS → Notify via Slack

Workflow File: .github/workflows/deploy.yml

name: CI/CD Pipeline for Node.js App

on:
  push:
    branches: [main]
  workflow_dispatch:

env:
  AWS_REGION: us-east-1
  ECR_REPO: my-ecr-repo
  IMAGE_TAG: ${{ github.sha }}

jobs:
  build-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test

  docker-publish:
    runs-on: ubuntu-latest
    needs: build-test
    steps:
      - uses: actions/checkout@v3

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v2
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ env.AWS_REGION }}

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Build and push Docker image
        run: |
          docker build -t $ECR_REPO:$IMAGE_TAG .
          docker tag $ECR_REPO:$IMAGE_TAG ${{ steps.login-ecr.outputs.registry }}/$ECR_REPO:$IMAGE_TAG
          docker push ${{ steps.login-ecr.outputs.registry }}/$ECR_REPO:$IMAGE_TAG

  deploy:
    runs-on: ubuntu-latest
    needs: docker-publish
    steps:
      - name: Checkout Terraform
        uses: actions/checkout@v3

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v3

      - name: Terraform Init
        run: terraform init

      - name: Terraform Apply
        run: terraform apply -auto-approve
        env:
          TF_VAR_image_tag: ${{ env.IMAGE_TAG }}
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

  notify:
    runs-on: ubuntu-latest
    needs: deploy
    steps:
      - name: Send Slack Notification
        uses: slackapi/slack-github-action@v1.24.0
        with:
          payload: |
            {
              "text": "✅ CI/CD pipeline completed. Image ${{ env.IMAGE_TAG }} deployed to AWS."
            }
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}