simple jenkinsfile

Jenkinsfile

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+pipeline {
+    agent any
+
+    environment {
+        // Replace with your actual registry URL (e.g., harbor.example.com or docker.io)
+        REGISTRY_URL = 'localhost:5000' 
+        IMAGE_NAME = 'hello-world-node'
+        // The ID of the credentials you've stored in Jenkins for your registry
+        REGISTRY_CREDENTIALS_ID = 'registry-credentials'
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                // This stage is usually handled automatically by Jenkins when using a Multibranch Pipeline or SCM
+                checkout scm
+            }
+        }
+
+        stage('Build Docker Image') {
+            steps {
+                script {
+                    echo "Building image: ${REGISTRY_URL}/${IMAGE_NAME}:${env.BUILD_NUMBER}"
+                    // Build the image using the multistage Dockerfile
+                    dockerImage = docker.build("${REGISTRY_URL}/${IMAGE_NAME}:${env.BUILD_NUMBER}", "./hello-world-node")
+                }
+            }
+        }
+
+        stage('Push to Registry') {
+            steps {
+                script {
+                    // Log in to the registry using stored credentials and push the image
+                    docker.withRegistry("http://${REGISTRY_URL}", REGISTRY_CREDENTIALS_ID) {
+                        dockerImage.push()
+                        dockerImage.push('latest')
+                    }
+                }
+            }
+        }
+
+        stage('Cleanup') {
+            steps {
+                sh "docker rmi ${REGISTRY_URL}/${IMAGE_NAME}:${env.BUILD_NUMBER}"
+                sh "docker rmi ${REGISTRY_URL}/${IMAGE_NAME}:latest"
+            }
+        }
+    }
+
+    post {
+        success {
+            echo 'Deployment successful!'
+        }
+        failure {
+            echo 'Deployment failed. Check the logs for details.'
+        }
+    }
+}