add Jenkinsfile

Jenkinsfile

@@ -0,0 +1,36 @@
+pipeline {
+    agent any
+    environment {
+       branch = "${env.BRANCH_NAME}"
+    }
+
+
+    stages {
+        stage('Build') {
+            steps {
+                sh 'mvn clean' 
+            }
+        }
+	stage('Test') {
+            steps {
+                sh 'mvn test' 
+            }
+        }
+	stage('Package') {
+            steps {
+                sh 'mvn package' 
+            }
+        }
+   
+	stage('Deploy') {
+ 	    when {
+    	        expression {
+                    return branch == 'master'
+                }
+            }
+            steps {
+                sh 'mvn deploy' 
+            }
+        }
+    }
+}