Exam

.github/workflows/ci-cd.yaml

@@ -0,0 +1,66 @@
+name: Build and Deploy Java App
+#trigger
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  build-and-deploy:
+    runs-on: self-hosted
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+
+    - name: Build with Maven
+      run: mvn clean package
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Set image tag
+      run: echo "IMAGE_TAG=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+    - name: Build Docker image
+      run: |
+        docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:${{ env.IMAGE_TAG }} .
+        docker tag ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:${{ env.IMAGE_TAG }} ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:latest
+#      run: docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:latest .
+#    - name: Set image tag
+#      run: echo "IMAGE_TAG=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+    - name: Push Docker image
+      run: |
+        docker push ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:${{ env.IMAGE_TAG }}
+        docker push ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:latest
+#      run: docker push ${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:latest
+
+    - name: Deploy to server via SSH
+      uses: appleboy/ssh-action@v1.0.0
+      with:
+        host: ${{ secrets.SERVER_IP }}
+        username: ${{ secrets.SERVER_USER }}
+        key: ${{ secrets.SERVER_SSH_KEY }}
+        script: |
+          set -e
+          IMAGE=${{ secrets.DOCKERHUB_USERNAME }}/java-hello-world:${{ env.IMAGE_TAG }}
+
+          echo "Pulling latest image..."
+          docker pull $IMAGE
+
+          echo "Stopping existing container if running..."
+          if docker ps -a -q --filter "name=app" | grep -q .; then
+            docker rm -f app
+          fi
+
+          echo "Running container on port 8080..."
+          docker run -d --name app -p 8080:8080 $IMAGE

.gitignore

@@ -7,3 +7,5 @@ dependency-reduced-pom.xml
 .settings/
 .vscode
 .DS_Store
+id_github_ci
+id_github_ci.pub

Dockerfile

@@ -0,0 +1,10 @@
+FROM maven:3.8.5-openjdk-17 AS build
+WORKDIR /app
+COPY . .
+RUN mvn package -DskipTests
+
+FROM openjdk:17
+WORKDIR /app
+COPY --from=build /app/target/java-hello-web-0.1.0.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java", "-jar", "app.jar"]