Correctly handle onboarding exception when no device type is guessed

netbox_onboarding/netdev_keeper.py

@@ -15,7 +15,7 @@
 import importlib
 import logging
 import socket
-
+from dcim.models import Platform
 from django.conf import settings
 from napalm import get_network_driver
 from napalm.base.exceptions import ConnectionException, CommandErrorException
@@ -25,8 +25,6 @@
 from netmiko.ssh_exception import NetMikoTimeoutException
 from paramiko.ssh_exception import SSHException
 
-from dcim.models import Platform
-
 from netbox_onboarding.onboarding.onboarding import StandaloneOnboarding
 from .constants import NETMIKO_TO_NAPALM_STATIC
 from .exceptions import OnboardException
@@ -178,7 +176,12 @@ def guess_netmiko_device_type(self):
             logger.error("ERROR: %s", str(err))
             raise OnboardException(reason="fail-general", message=f"ERROR: {str(err)}")
 
-        logger.info("INFO device type is: %s", guessed_device_type)
+        else:
+            if guessed_device_type is None:
+                logger.error("ERROR: Could not detect device type with SSHDetect")
+                raise OnboardException(
+                    reason="fail-general", message="ERROR: Could not detect device type with SSHDetect"
+                )
 
         return guessed_device_type