diff --git a/tools/rankserver/rankserver_cmd.py b/tools/rankserver/rankserver_cmd.py
index d6e0098..acf5838 100644
--- a/tools/rankserver/rankserver_cmd.py
+++ b/tools/rankserver/rankserver_cmd.py
@@ -14,7 +14,10 @@ import datetime
 import redis
 import os
 
-import game2003rank
+if f7.isOnlineEnv():
+    import game2003_rankserver as game2003rank
+else:
+    import game2003rank
 
 def _updateRank_cmd(debug_info):
     game2003rank.fullUpdateRank()
diff --git a/webapp/controller/OpsController.class.php b/webapp/controller/OpsController.class.php
new file mode 100644
index 0000000..d0dbba9
--- /dev/null
+++ b/webapp/controller/OpsController.class.php
@@ -0,0 +1,15 @@
+<?php
+
+class OpsController {
+
+    public function selfChecking()
+    {
+        echo json_encode(array(
+            'errcode' => 0,
+            'errmsg' => '',
+            'healthy' => 1,
+            'max_rundelay' => 1,
+        ));
+    }
+
+}