[cloud] make ec2_asg honor 'wait_for_instances' on delete

lib/ansible/modules/cloud/amazon/ec2_asg.py

@@ -588,6 +588,7 @@ def create_autoscaling_group(connection, module):
 def delete_autoscaling_group(connection, module):
     group_name = module.params.get('name')
     notification_topic = module.params.get('notification_topic')
+    wait_for_instances = module.params.get('wait_for_instances')
 
     if notification_topic:
         ag.delete_notification_configuration(notification_topic)
@@ -595,6 +596,11 @@ def delete_autoscaling_group(connection, module):
     groups = connection.get_all_groups(names=[group_name])
     if groups:
         group = groups[0]
+
+        if not wait_for_instances:
+            group.delete(True)
+            return True
+
         group.max_size = 0
         group.min_size = 0
         group.desired_capacity = 0
@@ -611,11 +617,9 @@ def delete_autoscaling_group(connection, module):
         group.delete()
         while len(connection.get_all_groups(names=[group_name])):
             time.sleep(5)
-        changed=True
-        return changed
-    else:
-        changed=False
-        return changed
+        return True
+
+    return False
 
 def get_chunks(l, n):
     for i in xrange(0, len(l), n):