Updated CD to run after CI and using Docker

.github/workflows/cd.yml

@@ -1,27 +1,24 @@
 name: CD - Deploy to AWS
 
 on:
-  push:
+  workflow_run:
+    workflows: ["CI Pipeline"]
+    types:
+      - completed
     branches:
       - main
 
 jobs:
   deploy:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Setup Java
-        uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 21
-
-      - name: Build
-        working-directory: backend
-        run: mvn clean package -DskipTests
+      - name: Package source bundle
+        run: cd backend && zip -r ../deploy.zip Dockerfile pom.xml src/
 
       - name: Deploy to Elastic Beanstalk
         uses: einaregilsson/beanstalk-deploy@v22
@@ -32,4 +29,4 @@ jobs:
           environment_name: passly-backend-env
           region: ${{ secrets.AWS_REGION }}
           version_label: v-${{ github.run_number }}
-          deployment_package: backend/target/passly-backend-0.0.1-SNAPSHOT.jar
+          deployment_package: deploy.zip