deploy.yml

# ════════════════════════════════════════════════════════════════════════
#  CI/CD Pipeline - Automatic Build & Deploy to Kubernetes
#  Triggers on push to main branch
# ════════════════════════════════════════════════════════════════════════

name: Deploy to Kubernetes

on:
  push:
    branches: [ main ]  # Change to your main branch name (main/master)
  workflow_dispatch:    # Allows manual trigger from GitHub UI

env:
  DOCKER_IMAGE: planify-app
  K8S_NAMESPACE: planify

jobs:
  build-and-deploy:
    name: Build & Deploy
    runs-on: ubuntu-latest
    
    steps:
    # ─── Step 1: Checkout code ───────────────────────────────────────
    - name: 📥 Checkout code
      uses: actions/checkout@v4

    # ─── Step 2: Set up Docker Buildx ────────────────────────────────
    - name: 🐳 Set up Docker Buildx
      uses: docker/setup-buildx-action@v3

    # ─── Step 3: Login to Docker Hub ─────────────────────────────────
    - name: 🔐 Login to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    # ─── Step 4: Build and Push Docker image ─────────────────────────
    - name: 🏗️ Build and push Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Dockerfile
        push: true
        platforms: linux/amd64
        tags: |
          ${{ secrets.DOCKER_USERNAME }}/${{ env.DOCKER_IMAGE }}:latest
          ${{ secrets.DOCKER_USERNAME }}/${{ env.DOCKER_IMAGE }}:${{ github.sha }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

    # ─── Step 5: Install kubectl ─────────────────────────────────────
    - name: ⚙️ Install kubectl
      uses: azure/setup-kubectl@v3
      with:
        version: 'latest'

    # ─── Step 6: Configure Azure credentials ─────────────────────────
    - name: 🔑 Azure Login
      uses: azure/login@v1
      with:
        creds: ${{ secrets.AZURE_CREDENTIALS }}

    # ─── Step 7: Get AKS credentials ──────────────────────────────────
    - name: 📦 Get AKS credentials
      run: |
        az aks get-credentials \
          --resource-group ${{ secrets.AZURE_RESOURCE_GROUP }} \
          --name ${{ secrets.AZURE_AKS_CLUSTER }} \
          --overwrite-existing

    # ─── Step 8: Update Kubernetes deployment ────────────────────────
    - name: 🚀 Deploy to Kubernetes
      run: |
        # Update the image in the deployment
        kubectl set image deployment/planify-app \
          planify-app=${{ secrets.DOCKER_USERNAME }}/${{ env.DOCKER_IMAGE }}:${{ github.sha }} \
          -n ${{ env.K8S_NAMESPACE }}
        
        # Wait for rollout to complete
        kubectl rollout status deployment/planify-app -n ${{ env.K8S_NAMESPACE }} --timeout=5m

    # ─── Step 9: Verify deployment ────────────────────────────────────
    - name: ✅ Verify deployment
      run: |
        echo "Checking deployment status..."
        kubectl get pods -n ${{ env.K8S_NAMESPACE }}
        kubectl get svc planify-loadbalancer -n ${{ env.K8S_NAMESPACE }}
        
        # Test health endpoint
        EXTERNAL_IP=$(kubectl get svc planify-loadbalancer -n ${{ env.K8S_NAMESPACE }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
        echo "App is accessible at: http://$EXTERNAL_IP"

    # ─── Step 10: Notify on success ───────────────────────────────────
    - name: 🎉 Deployment successful
      if: success()
      run: |
        echo "✅ Deployment completed successfully!"
        echo "🚀 New version deployed: ${{ github.sha }}"