add sanity assertion on redis value type

inventory_provider/tasks/app.py

+import logging
+import sys
+from inventory_provider import constants
 from celery import Celery
 
+logging.basicConfig(stream=sys.stderr, level=logging.WARNING)
+logging.getLogger(constants.SNMP_LOGGER_NAME).setLevel(logging.DEBUG)
+logging.getLogger(constants.TASK_LOGGER_NAME).setLevel(logging.DEBUG)
+logging.getLogger(constants.JUNIPER_LOGGER_NAME).setLevel(logging.DEBUG)
+logging.getLogger(constants.DATABASE_LOGGER_NAME).setLevel(logging.DEBUG)
+
 app = Celery("app")
 app.config_from_object("inventory_provider.tasks.config")

inventory_provider/tasks/worker.py

@@ -28,6 +28,8 @@ class InventoryTask(Task):
 
     @staticmethod
     def save_key(hostname, key, value):
+        assert isinstance(value, str), \
+            "sanity failure: expected string data as value"
         r = redis.StrictRedis(
             host=InventoryTask.config["redis"]["hostname"],
             port=InventoryTask.config["redis"]["port"])