Anonymous access is still working even with App Service authentication Enabled

Question

I turned on authentication and add Microsoft Entra as identity provider, but anonymous access is still working.

What configuration did I miss?

Answer 1

https://learn.microsoft.com/en-us/azure/azure-functions/flex-consumption-plan#considerations

Learned from dev team, easy auth is not turned on for flex consumption. That's why the authentication is not working.

Answer 2

Hi Bo Xiao,

The best option to troubleshoot why the function app still acepting anonymous authentication It's byu Azure functions core tools (https://learn.microsoft.com/en-us/azure/azure-functions/functions-run-local) try run on local and validate the function app authenticate as expected: func start

When your function is running on local as expected you can deploy to the Azure function service again. Restart the service just to confirm the changes.

References:

• https://learn.microsoft.com/en-us/azure/azure-functions/functions-get-started
• https://learn.microsoft.com/en-us/azure/azure-functions/functions-create-function-app-portal

If the information helped address your question, please Accept the answer.

Luis