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* fix(azure): restrict the storage credential chain to deployment identities The keyless Azure Storage path walks the full DefaultAzureCredential chain, so a proxy with no storage service principal authenticates as whichever identity the host happens to carry: an operator's az login on a workstation, or the AZURE_CLIENT_ID/AZURE_CLIENT_SECRET service principal set for Azure OpenAI. Neither is the identity granted Storage Blob Data Contributor. Narrow the chain to workload identity and managed identity, the two credentials a deployment legitimately holds. Azure OpenAI, Postgres IAM auth and the other callers of get_azure_ad_token_provider keep the full chain. * test(azure): read the credential chain off the mock instead of an accumulator * chore: drop a stray launch traceback committed at the repo root * fix(azure): let the storage chain reach a system assigned managed identity DefaultAzureCredential keeps one managed identity link and pins it to AZURE_CLIENT_ID, so a host that sets that variable for Azure OpenAI and runs as a system assigned identity never got asked for a storage token. Build the chain from the three credentials a deployment can carry instead of subtracting the ones it cannot. |
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| test_azure_storage.py | ||