Adds CI/CD pipeline for automated deployment

Sets up a GitHub Actions workflow to build, push, and deploy the application to an EC2 instance.
The workflow automates the deployment process on every push to the main branch.

It includes steps for:
- Checking out the code
- Setting up Docker Buildx
- Logging into Docker Hub
- Building and pushing the Docker image
- Deploying to EC2 using SSH, including stopping/removing the old container, pulling the latest image, and running the new container.

Author: oDaviML

.github/workflows/deploy.yml

@@ -0,0 +1,52 @@
+name: Deploy to EC2
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: ${{ secrets.DOCKER_USERNAME }}/api-onibusbh:latest
+
+    - name: Deploy to EC2
+      uses: appleboy/ssh-action@master
+      with:
+        host: ${{ secrets.EC2_HOST }}
+        username: ${{ secrets.EC2_USERNAME }}
+        key: ${{ secrets.EC2_SSH_KEY }}
+        script: |
+          docker stop api-onibusbh || true
+          docker rm api-onibusbh || true
+          
+          docker pull ${{ secrets.DOCKER_USERNAME }}/api-onibusbh:latest
+          
+          docker run -d \
+            --name api-onibusbh \
+            -p 8080:8080 \
+            -e SPRING_PROFILES_ACTIVE=prod \
+            -e MONGO_HOST=${{ secrets.MONGO_HOST }} \
+            -e MONGO_PORT=${{ secrets.MONGO_PORT }} \
+            -e MONGO_DATABASE=${{ secrets.MONGO_DATABASE }} \
+            -e MONGO_USERNAME=${{ secrets.MONGO_USERNAME }} \
+            -e MONGO_PASSWORD=${{ secrets.MONGO_PASSWORD }} \
+            ${{ secrets.DOCKER_USERNAME }}/api-onibusbh:latest