fix

code/ddns-lambda.py

@@ -73,7 +73,7 @@
 LOGGER = logging.getLogger()
 account_id = None
 region = None
-VERSION = '1.2.0b76'
+VERSION = '1.2.0b77'
 
 # Read Env variables
 DEBUG_LOG_LEVEL = os.environ.get('DebugLogLevel', 'INFO')
@@ -416,17 +416,20 @@ def lambda_handler(
         LOGGER.info("Fetching instance information from dynamodb %s", lineno())
         instance = get_item_from_dynamodb_table(dynamodb_client, DDBNAME, instance_id)
         LOGGER.info("instance attributes: %s", str(instance) + lineno())
-        try:
-            dns_data_raw = instance.get('_DnsEntries', [])
-            LOGGER.debug(
-                f"got _DnsEntries type {type(dns_data_raw)} value {dns_data_raw} {lineno()}")
-            dns_data = [dns_data_tuple(**item) for item in dns_data_raw]
-            LOGGER.debug(f"converted _DnsEntries to namdtuples {dns_data} {lineno()}")
-            LOGGER.info(
-                f"Found entries from DDB for DNS records: {str(dns_data)} {lineno()}")
-        except Exception as err:
-            LOGGER.error(f"Cannot deserialize instance data from DDB: {err} {lineno()}")
-            dns_data = []
+        dns_data = []
+        if len(instance) > 0:
+            try:
+                dns_data_raw = instance.get('_DnsEntries', [])
+                LOGGER.debug(
+                    f"got _DnsEntries type {type(dns_data_raw)} value {dns_data_raw} {lineno()}")
+                dns_data = [dns_data_tuple(**item) for item in dns_data_raw]
+                LOGGER.debug(
+                    f"converted _DnsEntries to namdtuples {dns_data} {lineno()}")
+                LOGGER.info(
+                    f"Found entries from DDB for DNS records: {str(dns_data)} {lineno()}")
+            except Exception as err:
+                LOGGER.error(
+                    f"Cannot deserialize instance data from DDB: {err} {lineno()}")
 
     # Get the instance tags and reorder them because we want a zone created before CNAME
     try: