Updated Jenkinsfile for Kubernetes deployment

Jenkinsfile

@@ -2,48 +2,54 @@ pipeline {
     agent any
 
     environment {
-        DOCKERHUB_REPO = "vipin2025devops/myapp"
-        IMAGE_TAG = "${env.BUILD_NUMBER}"
+        DOCKERHUB_USER = 'vipin2025devops'
+        IMAGE_NAME = 'myapp'
+        IMAGE_TAG = "latest"
+        K8S_DEPLOYMENT = 'k8s/deployment.yaml'
+        K8S_SERVICE = 'k8s/service.yaml'
     }
 
     stages {
-        stage('Checkout') {
+        stage('Checkout Code') {
             steps {
                 checkout scm
             }
         }
 
-        stage('Build & Push Image') {
+        stage('Build Docker Image') {
             steps {
-                script {
-                    docker.withRegistry('https://index.docker.io/v1/', 'dockerhub-creds') {
-                        def img = docker.build("${DOCKERHUB_REPO}:${IMAGE_TAG}")
-                        img.push()
-                        // cleanup local image to save space
-                        bat "docker image rm ${DOCKERHUB_REPO}:${IMAGE_TAG} || exit 0"
-                    }
+                powershell """
+                docker build -t ${DOCKERHUB_USER}/${IMAGE_NAME}:${IMAGE_TAG} .
+                """
+            }
+        }
+
+        stage('Push Image to Docker Hub') {
+            steps {
+                withCredentials([usernamePassword(credentialsId: 'docker-hub-credentials', usernameVariable: 'DOCKER_USER', passwordVariable: 'DOCKER_PASS')]) {
+                    powershell """
+                    echo $env:DOCKER_PASS | docker login -u $env:DOCKER_USER --password-stdin
+                    docker push ${DOCKERHUB_USER}/${IMAGE_NAME}:${IMAGE_TAG}
+                    """
                 }
             }
         }
 
         stage('Deploy to Kubernetes') {
             steps {
-                withCredentials([file(credentialsId: 'kubeconfig', variable: 'KUBECONFIG')]) {
-                    script {
-                        bat """
-                        powershell -Command "(Get-Content k8s/deployment.yaml) -replace 'IMAGE_PLACEHOLDER', '${DOCKERHUB_REPO}:${IMAGE_TAG}' | Set-Content k8s/deployment-to-apply.yaml"
-                        kubectl --kubeconfig=%KUBECONFIG% apply -f k8s/deployment-to-apply.yaml
-                        kubectl --kubeconfig=%KUBECONFIG% apply -f k8s/service.yaml
-                        """
-                    }
-                }
+                powershell """
+                kubectl apply -f ${K8S_DEPLOYMENT}
+                kubectl apply -f ${K8S_SERVICE}
+                """
+            }
+        }
+
+        stage('Verify Deployment') {
+            steps {
+                powershell """
+                kubectl get pods -o wide
+                """
             }
         }
     }
-
-    post {
-        always {
-            echo "Pipeline finished: ${currentBuild.fullDisplayName}"
-        }
-    }
 }