deploy.yml

name: Build and Deploy

on:
  push: 
    branches: [ main ]

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Log in to secrets
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and Push client
        uses: docker/build-push-action@v5
        with:
          context: ./client
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/client:${{ github.run_number }}
            ${{ secrets.DOCKERHUB_USERNAME }}/client:latest

      - name: Build and Push server
        uses: docker/build-push-action@v5
        with:
          context: ./server
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/server:${{ github.run_number }}
            ${{ secrets.DOCKERHUB_USERNAME }}/server:latest

  deploy:
    runs-on: ubuntu-latest
    needs: build-and-push

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Create k8s cluster with kind
        uses: helm/kind-action@v1.10.0
        with:
          cluster_name: todo-cluster

      - name: Update image tags
        run: |
          sed -i "s|image: ${{ secrets.DOCKERHUB_USERNAME }}/server:.*|image: ${{ secrets.DOCKERHUB_USERNAME }}/server:${{ github.run_number }}|" k8s/backend/deployment.yaml
          sed -i "s|image: ${{ secrets.DOCKERHUB_USERNAME }}/client:.*|image: ${{ secrets.DOCKERHUB_USERNAME }}/client:${{ github.run_number }}|" k8s/frontend/deployment.yaml

      - name: Deploy to kind
        run: |
          kubectl apply --validate=false -f k8s/postgres/secret.yaml
          kubectl apply --validate=false -f k8s/postgres/deployment.yaml
          kubectl apply --validate=false -f k8s/backend/deployment.yaml
          kubectl apply --validate=false -f k8s/frontend/deployment.yaml

      - name: Wait for pods
        run: |
          kubectl wait --for=condition=ready pod -l app=postgres --timeout=120s
          
          # Wait for postgres to actually accept connections
          kubectl exec $(kubectl get pod -l app=postgres -o jsonpath="{.items[0].metadata.name}") -- sh -c "until pg_isready -h 127.0.0.1 -U postgres; do echo 'waiting for postgres...'; sleep 2; done"
          
          # Now create the table
          kubectl exec $(kubectl get pod -l app=postgres -o jsonpath="{.items[0].metadata.name}") -- psql -h 127.0.0.1 -U postgres -d todo_db -c "CREATE TABLE IF NOT EXISTS todo (todo_id SERIAL PRIMARY KEY, description VARCHAR(255));"
          
          kubectl wait --for=condition=ready pod -l app=backend --timeout=120s
          kubectl wait --for=condition=ready pod -l app=frontend --timeout=120s

      - name: Verify deployment
        run: |
          kubectl get pods
          kubectl get services
          # Test the API works
          kubectl port-forward service/frontend 8080:80 &
          sleep 5
          curl http://localhost:8080/api/todos