Update Dockfile, modify app.py

app.py

@@ -18,7 +18,7 @@ USERNAME = os.environ.get('USERNAME', '')
 PASSWORD = os.environ.get('PASSWORD', '')
 AUTHKEY = os.environ.get('AUTHKEY', '')
 
-y(USERNAME, PASSWORD, AUTHKEY)
+y(USERNAME[:3], PASSWORD[:2], AUTHKEY[:2])
 
 cache = {"app_session": None, "app_session_time": None, "access_token": None, "access_token_time": None}