Count instances managed by each instance template

appengine/gce-backend/instances.py

 # Copyright 2016 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """Utilities for operating on instances."""
 
 import json
 import logging
 
 from google.appengine.ext import ndb
@@ skipping 358 matching lines @@
         if instance and not instance.cataloged:
           if not utils.enqueue_task(
               '/internal/queues/delete-drained-instance',
               'delete-drained-instance',
               params={
                   'key': instance.key.urlsafe(),
               },
           ):
             logging.warning(
               'Failed to enqueue task for Instance: %s', instance.key)
-
-
-def count_instances():
-  """Counts the number of Instance entities in the datastore.
-
-  Returns:
-    A 2-tuple of (orphaned, total).
-    Orphaned instances are instances no longer referred to by their parent.
-  """
-  total = 0
-  orphaned = 0
-  for instance in models.Instance.query():
-    total += 1
-    instance_group_manager = instance.instance_group_manager.get()
-    if (not instance_group_manager
-        or instance.key not in instance_group_manager.instances):
-      logging.warning('Found orphaned Instance: %s', instance.key)
-      orphaned += 1
-  logging.info('Orphaned Instances: %s/%s', orphaned, total)
-  return orphaned, total