[hooks] try/except when attempting to create index

hooks.py

@@ -51,10 +51,13 @@
         if locations and index_name:
             es = Elasticsearch(locations and locations.split(','))
             # TODO : have a cache so that we don't check index on every transition
-            if not es.indices.exists(index=index_name):
-                es.indices.create(index=index_name,
-                                  body=INDEX_SETTINGS,
-                                  ignore=400)
+            try:
+                if not es.indices.exists(index=index_name):
+                    es.indices.create(index=index_name,
+                                      body=INDEX_SETTINGS,
+                                      ignore=400)
+            except (ConnectionError, ProtocolError):
+                log.debug('Failed to index in hook, could not connect to ES')
             # serializer = self.entity.cw_adapt_to('IFTISerializable')
             serializer = self.entity.cw_adapt_to('ISerializable')
             json = serializer.serialize()