update jenksfiles

Jenkinsfile

@@ -1,36 +1,39 @@
-node {
-    def app
+pipeline{
 
-    stage('Clone repository') {
-        /* Let's make sure we have the repository cloned to our workspace */
+	agent any
 
-        checkout scm
-    }
+	environment {
+		DOCKERHUB_CREDENTIALS=credentials('dockerhub-cred')
+	}
 
-    stage('Build image') {
-        /* This builds the actual image; synonymous to
-         * docker build on the command line */
+	stages {
 
-        app = docker.build("aisthanestha/docker-test-image")
-    }
+		stage('Build') {
 
-    stage('Test image') {
-        /* Ideally, we would run a test framework against our image.
-         * For this example, we're using a Volkswagen-type approach ;-) */
+			steps {
+				sh 'docker build -t aisthanestha/docker-test-image:latest .'
+			}
+		}
 
-        app.inside {
-            sh 'echo "Tests passed"'
-        }
-    }
+		stage('Login') {
+
+			steps {
+				sh 'echo $DOCKERHUB_CREDENTIALS_PSW | docker login -u $DOCKERHUB_CREDENTIALS_USR --password-stdin'
+			}
+		}
+
+		stage('Push') {
+
+			steps {
+				sh 'docker push aisthanestha/docker-test-image:latest'
+			}
+		}
+	}
+
+	post {
+		always {
+			sh 'docker logout'
+		}
+	}
 
-    stage('Push image') {
-        /* Finally, we'll push the image with two tags:
-         * First, the incremental build number from Jenkins
-         * Second, the 'latest' tag.
-         * Pushing multiple tags is cheap, as all the layers are reused. */
-        docker.withRegistry('https://registry.hub.docker.com', 'docker-hub-credentials') {
-            app.push("${env.BUILD_NUMBER}")
-            app.push("latest")
-        }
-    }
 }