skip user creation if no secret found

Author: tomklapiscak

bin/mas-devops-create-initial-users-for-saas

@@ -110,6 +110,10 @@ if __name__ == "__main__":
                 SecretId=initial_users_secret_name
             )
         except ClientError as e:
+            if e.response['Error']['Code'] == 'ResourceNotFoundException':
+                logger.info(f"Secret {initial_users_secret_name} was not found, nothing to do, exiting now.")
+                sys.exit(0)
+
             raise Exception(f"Failed to fetch secret {initial_users_secret_name}: {str(e)}")
 
         secret_json = json.loads(initial_users_secret['SecretString'])