add backoff on Service crd

Author: mdujava

threescale_api_crd/resources.py

@@ -1,5 +1,6 @@
 """ Module with resources for CRD for Threescale client """
 
+import backoff
 import logging
 import copy
 import json
@@ -1979,7 +1980,12 @@ def __init__(self, entity_name="system_name", **kwargs):
                 for cey, walue in constants.KEYS_SERVICE.items():
                     if key == walue:
                         entity[cey] = value
-            entity["id"] = crd.as_dict().get("status").get(Services.ID_NAME)
+
+            @backoff.on_exception(backoff.fibo, AttributeError, max_tries=12, jitter=None)
+            def _get():
+                return crd.as_dict().get("status").get(Services.ID_NAME)
+
+            entity["id"] = _get()
             # add ids to cache
             if entity["id"] and entity[entity_name]:
                 Service.id_to_system_name[int(entity["id"])] = entity[entity_name]