User Assigned Managed Identity in Azure Functions with Azure.Identity
Oct 19, 2021
Today was trying to authenticate my Azure Function app with a User Assigned Managed Identity using the newer Azure.Idenity NuGet package.
Quickly I ran into the following error:
Exception while executing function: MyFunction ManagedIdentityCredential authentication failed: No MSI found for specified ClientId/ResourceId.Status: 400 (Bad Request)
Solution
Add AZURE_CLIENT_ID to the Application settings with the Client ID of the User Assigned Managed Identity as the value: