sandbox: handle docker stop correctly in uwsgi

sites/sandbox/deploy/uwsgi.ini

@@ -9,6 +9,9 @@ lazy = 1
 thunder-lock = 1
 buffer-size = 65535
 
+# Handle docker stop
+die-on-term = 1  
+
 # Kill requests after 30 seconds
 harakiri = 30
 harakiri-verbose = true