Merge branch 'dev_aliyun' into educoder

app/controllers/welcome_controller.rb

@@ -485,7 +485,7 @@ class WelcomeController < ApplicationController
 
   def _shixun_to_local shixuns
     shixuns.each do |shixun|
-      if LocalShixun.where(shixun_id: shixun.id).blank?
+      if LocalShixun.where(shixun_id: shixun.id).blank? && !shixun.mirror_repositories.pluck(:type_name).includes?("VNC")
 
         local_shixun = LocalShixun.create!(name: shixun.name, description: shixun.description, user_id: User.current.id, status: 0,
                                            trainee: shixun.trainee, webssh: shixun.webssh, multi_webssh: shixun.multi_webssh,