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")        
              }    
           }
        }