How to enable for Flower message signing?

[handziuk]

Hi everyone,

For my Celery worker, I enabled message signing https://docs.celeryq.dev/en/stable/userguide/security.html#message-signing.
I've read through the Flower documentation and was not able to find how properly configure certificates, to sign messages.

Without it, the Celery worker simply blocks messages from Flower.

body: '{"method": "enable_events", "arguments": {}, "destination": null, "pattern": null, "matcher": null}' (99b)
Traceback (most recent call last):
File "/.venv/lib/python3.10/site-packages/kombu/messaging.py", line 620, in _receive_callback
decoded = None if on_m else message.decode()
File "/.venv/lib/python3.10/site-packages/kombu/message.py", line 194, in decode
self._decoded_cache = self._decode()
File "/.venv/lib/python3.10/site-packages/kombu/message.py", line 198, in _decode
return loads(self.body, self.content_type,
File "/.venv/lib/python3.10/site-packages/kombu/serialization.py", line 242, in loads
raise self._for_untrusted_content(content_type, 'untrusted')
kombu.exceptions.ContentDisallowed: Refusing to deserialize untrusted content of type json (application/json)

I would be appreciated any help.