update portainer to version 2

dockerfiles/services/ui/Jenkinsfile

@@ -14,14 +14,10 @@ node('docker') {
 
     stage('deploy') {
         dir(workdir) {
-            sh '''export DOCKER_HOST=dkhost:2376
+            sh '''
+                export DOCKER_HOST=dkhost:2376
                 docker stack deploy -c docker-compose.yml dkui
-
-//             if docker stack ls | grep dkui; then
-//               docker service update --config-add docker-compose.yml dkui_app
-//             else
-//               docker stack deploy -c docker-compose.yml dkui
-//             fi'''
+            '''
         }
     }