Added Docker and Jar file pipeline

Modified the ci cd pipeline to include the final requirements for the assignment

Author: P-NOULIS

.github/workflows/main.yml

@@ -38,3 +38,19 @@ jobs:
 
       - name: Run Unit Tests (JUnit)
         run: mvn test
+
+      # Build the .jar file
+      - name: Build Jar
+        run: mvn clean package --file pom.xml
+
+      # Docker Login using GitHub Secrets
+      - name: Log in to Docker Hub
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+
+      # Build Docker Image
+      - name: Build Docker Image
+        run: docker build -t ${{ secrets.DOCKER_USERNAME }}/my-java-app:latest .
+
+      # Push Docker Image to Docker Hub
+      - name: Push Docker Image
+        run: docker push ${{ secrets.DOCKER_USERNAME }}/my-java-app:latest

dockerfile

@@ -0,0 +1,13 @@
+# use an official OpenJDK runtime as a base image
+FROM openjdk:17-jdk-slim
+
+# set a working directory in the container
+WORKDIR /app
+
+# Copy the built JAR file into the container
+COPY target/LabAssignment01Noulis-0.0.1-SNAPSHOT.jar /app/my-java-app.jar
+
+EXPOSE 8080
+
+# Command to run the app
+CMD ["java", "-jar", "/app/my-java-app.jar"]