Create Jenkinsfile

Jenkinsfile

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+pipeline {
+    agent any
+    tools { 
+        maven 'M3' 
+    }
+    options {
+        buildDiscarder logRotator( 
+            daysToKeepStr: '2', 
+            numToKeepStr: '2'
+        )
+    }
+    environment {
+        DOCKERHUB_USERNAME = "kunchalavikram"
+        JOB_NAME = "spring-petclinic"
+        APP_NAME = "spring-petclinic"
+        IMAGE_TAG = "${BUILD_NUMBER}"
+        IMAGE_NAME = "${DOCKERHUB_USERNAME}" + "/" + "${APP_NAME}"
+        REGISTRY_CREDS = 'dockerhub'
+    }
+    stages {
+        stage('Cleanup Workspace') {
+            steps {
+                script {
+                    cleanWs()
+                    sh """
+                    echo "Cleaned Up Workspace for ${JOB_NAME}"
+                    """
+                }
+            }
+        }
+        stage('Checkout SCM'){
+            steps {
+                git url: 'https://github.com/kunchalavikram1427/spring-petclinic.git',
+                branch: 'main'
+            }
+        }
+        stage('Code Build') {
+            steps {
+                 sh "mvn -Dmaven.test.failure.ignore=true clean package"
+            }
+            post {
+                success {
+                    junit '**/target/surefire-reports/*.xml'
+                }
+            }
+        }
+        stage('Build Docker Image'){
+            steps {
+                script{
+                    docker_image = docker.build "${IMAGE_NAME}"
+                }
+            }
+        }
+        stage('Push Docker Image'){
+            steps {
+                script{
+                    docker.withRegistry('', REGISTRY_CREDS ){
+                        docker_image.push("${BUILD_NUMBER}")
+                        docker_image.push('latest')
+                    }
+                }
+            }
+        }
+        stage('Run Docker Image'){
+            steps {
+                sh "docker rm -f petclinic || true"
+                sh "docker run -d -p 8181:8080 --name petclinic ${IMAGE_NAME}:${IMAGE_TAG}"
+            }
+        }  
+        stage('Delete Docker Images'){
+            when {
+                expression { false }
+            }
+            steps {
+                sh "docker rmi ${IMAGE_NAME}:${IMAGE_TAG}"
+                sh "docker rmi ${IMAGE_NAME}:latest"
+            }
+        }
+    }   
+}