Adds settings.cfg for gce-backend.

appengine/gce-backend/main.py

Index: appengine/gce-backend/main.py
diff --git a/appengine/gce-backend/main.py b/appengine/gce-backend/main.py
index 4708838f9d89a763712556a82077bd879124fb3a..6357018ef6a3f5d131b86383393315234694d3bf 100644
--- a/appengine/gce-backend/main.py
+++ b/appengine/gce-backend/main.py
@@ -8,11 +8,16 @@ from components import utils
 
 import gae_ts_mon
 
+import config
 import handlers_cron
 import handlers_endpoints
 import handlers_queues
 
 
+def is_enabled_callback():
+  return config.settings().enable_ts_monitoring
+
+
 def main():
   utils.set_task_queue_module('default')
   apps = (
@@ -22,7 +27,7 @@ def main():
   )
   for app in apps[1:]:
     # Not callable on endpoints app
-    gae_ts_mon.initialize(app=app)
+    gae_ts_mon.initialize(app=app, is_enabled_fn=is_enabled_callback)
   return apps