App service not starting, "Unable to lookup configured interfaces"

[jagdtigger]

Hello all!

Just upgraded last night and seemed to worked out just fine. Until i logged in today, when i logged in the UI was acting strange but a cache wipe solved it. The main issue is the kubernetes cluster refusing to start, the exact error is:
"Failed to configure kubernetes cluster for Applications: Unable to lookup configured interfaces: br200"

From middleware log:

[2023/12/28 14:28:07] (ERROR) asyncio.default_exception_handler():1771 - Task exception was never retrieved
future: <Task finished name='Task-5158' coro=<Middleware.call() done, defined at /usr/lib/python3/dist-packages/middlewared/main.py:1390> exception=CallError('Unable to lookup configured interfaces: br200')>
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1399, in call
return await self._call(
^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1342, in _call
return await methodobj(*prepared_call.args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/middlewared/plugins/kubernetes_linux/lifecycle.py", line 390, in start_service
await self.before_start_check()
File "/usr/lib/python3/dist-packages/middlewared/plugins/kubernetes_linux/lifecycle.py", line 401, in before_start_check
await self.middleware.call('kubernetes.validate_k8s_fs_setup')
File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1399, in call
return await self._call(
^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1342, in _call
return await methodobj(*prepared_call.args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/middlewared/plugins/kubernetes_linux/lifecycle.py", line 243, in validate_k8s_fs_setup
raise CallError(f'Unable to lookup configured interfaces: {", ".join([v[1] for v in iface_errors])}')
middlewared.service_exception.CallError: [EFAULT] Unable to lookup configured interfaces: br200


Havent touched any metwork related settings since i reinstalled quite a few months ago when i upgraded from core so i do not know what caused this.....

 

[crownrai]

Apparently 23.10.1 introduced some issues with Bridge interfaces and Apps (i.e. Kubernetes). I don't know all the details, but the current Quick Fix workaround is to do the following:

Got to Apps/Settings/Advanced Settings and de-select "Enable GPU Support" and Save. This will cause Kubernetes to restart successfully. Then Re-select "Enable GPU Support" and Kubernetes will restart again with GPU support enabled.

 

[jagdtigger]

Thanks, that did the trick. So now the workaround needs an another workaround to work (me using a bridge to begin with is also a workaround so VMs can talk to the host)...