Environment Variables and Workload Options Are Not Fully Configured about dicom-server

[jnlycklama]

DefaultAzureCredential will go through different types of authentication until it finds one that works - https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication/?tabs=command-line#exploring-the-sequence-of-defaultazurecredential-authentication-methods
So its not failing on EnvironmentCredential or WorkloadIdentityCredential, but just moving on to the next credential. It looks like it finally uses ManagedIdentityCredential and stops there.

https://github.com/microsoft/dicom-server/blob/main/converter/dicom-cast/docs/authentication.md - see these docs for more options on how to set up authentication