Added Jenkinsfile

Jenkinsfile

@@ -0,0 +1,18 @@
+
+node {    
+      def app     
+      stage('Clone repository') {               
+             
+            checkout scm    
+      }     
+      stage('Build image') {         
+       
+            app = docker.build("agreiner/advancedmqttbridge")    
+       }
+       stage('Push image') {
+                                                  docker.withRegistry('https://reg.greinet.com', 'docker_registry_jenkins') {            
+       app.push("1.${env.BUILD_NUMBER}")            
+       app.push("latest")        
+              }    
+           }
+        }