diff --git a/Dockerfile b/Dockerfile
index 0e394b307..ce19ac4ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,21 +1,11 @@
 # Use an official OpenJDK runtime as a parent image
-FROM openjdk
+FROM openjdk:11-jdk-slim
 
 # Set the working directory inside the container
 WORKDIR /app
 
-# Copy the Maven wrapper and the pom.xml file
-COPY .mvn/ .mvn
-COPY mvnw pom.xml ./
-
-# Copy the project source code
-COPY src ./src
-
-# Package the application
-RUN ./mvnw clean package -DskipTests
-
-# Copy the JAR file to the app directory. This is created in the build process
-RUN cp /app/target/*.jar app.jar
+# Copy the JAR file to the app directory (adjust this path according to your actual JAR file name in the target directory)
+COPY target/*.jar app.jar
 
 # Run the jar file
 CMD ["java", "-jar", "app.jar"]
diff --git a/Jenkinsfile b/Jenkinsfile
index 8ac23c6f0..a0428726d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -17,11 +17,20 @@ pipeline {
             }
         }
 
+        stage('Build JAR') {
+            steps {
+                script {
+                    echo "Building JAR..."
+                    sh './mvnw clean package -Dmaven.test.skip=true'
+                }
+            }
+        }
+
         stage('Build Docker Image') {
             steps {
                 script {
                     echo "Building Docker Image..."
-                    def dockerImage = docker.build("spring-petclinic")
+                    def dockerImage = docker.build("spring-petclinic", "--no-cache .")
                     echo "Docker Image built: ${dockerImage.id}"
                     // Store the Docker image ID in the environment if needed across stages
                     env.DOCKER_IMAGE_ID = dockerImage.id
@@ -29,6 +38,7 @@ pipeline {
             }
         }
 
+        // Further stages would reference env.DOCKER_IMAGE_ID if needed
     }
 
     post {
@@ -37,7 +47,7 @@ pipeline {
                 // Use the saved Docker image ID from the environment if needed
                 if (env.DOCKER_IMAGE_ID) {
                     echo "Stopping and removing Docker Image with ID: ${env.DOCKER_IMAGE_ID}"
-                    docker.rmi(env.DOCKER_IMAGE_ID)
+                    sh "docker rmi -f ${env.DOCKER_IMAGE_ID}"
                 }
             }
         }
diff --git a/docker-compose_spring-petclinic.yml b/docker-compose_spring-petclinic.yml
index 7771d2831..cbad04772 100644
--- a/docker-compose_spring-petclinic.yml
+++ b/docker-compose_spring-petclinic.yml
@@ -39,15 +39,17 @@ services:
     build:
       context: .
       dockerfile: Dockerfile.jenkins
+    image: my-jenkins:latest
     ports:
       - "8081:8080"
       - "50000:50000"
-
+    privileged: true
+    user: root
     environment:
       - JAVA_OPTS=-Djenkins.install.runSetupWizard=false
       - CASC_JENKINS_CONFIG=/var/jenkins_home/casc_configs/jenkins.yaml
     volumes:
-      - ./jenkins_data:/var/jenkins_home
+      - jenkins_data:/var/jenkins_home
       - ./jenkins.yaml:/var/jenkins_home/casc_configs/jenkins.yaml
       - /var/run/docker.sock:/var/run/docker.sock
     networks: