How to properly configure Azure Key Vault access policies for a .NET 6 application using Managed Identity?
I've tried everything I can think of but I'm dealing with I've been working on this all day and I'm trying to access Azure Key Vault from my .NET 6 application using Managed Identity, but I'm working with issues with the access policies... I've set up the Managed Identity for my Azure App Service and granted it access to the Key Vault, but when I attempt to retrieve a secret, I receive the following behavior: `"Access denied"`. I've verified that the identity has at least `Get` permissions for secrets in the Key Vault access policies. Here’s what I have done so far: 1. Ensured that the Managed Identity is enabled in the Azure App Service. 2. Added the Managed Identity to the Key Vault access policies with `Get` and `List` permissions for secrets. 3. Tried using the Azure SDK for .NET to fetch the secret: ```csharp using Azure.Identity; using Azure.Security.KeyVault.Secrets; var client = new SecretClient(new Uri("https://<your-key-vault-name>.vault.azure.net/"), new DefaultAzureCredential()); try { KeyVaultSecret secret = await client.GetSecretAsync("<your-secret-name>"); Console.WriteLine(secret.Value); } catch (Exception ex) { Console.WriteLine(ex.Message); } ``` 4. Confirmed that the Key Vault and the App Service are in the same Azure Active Directory tenant. Despite following these steps, I still encounter the same access denied behavior. I also tried using the Azure CLI to validate that the Managed Identity has the required permissions, and it looks correct. Is there something I'm missing in the configuration, or is there another step I should take to troubleshoot this scenario? This issue appeared after updating to C# 3.10. Any ideas what could be causing this? I'm developing on Debian with C#. How would you solve this?