kevinjqliu opened a new issue, #13818: URL: https://github.com/apache/iceberg/issues/13818
### Feature Request / Improvement **Description** Currently, [ADLSFileIO in the Azure module](https://github.com/apache/iceberg/blob/main/azure/src/main/java/org/apache/iceberg/azure/adlsv2/ADLSFileIO.java) only supports authentication via built-in Azure credential mechanisms such as [DefaultAzureCredential, StorageSharedKeyCredential, or SAS tokens](https://github.com/apache/iceberg/blob/54f8e58fc845cb82af70750d748ac7b3dee25365/azure/src/main/java/org/apache/iceberg/azure/AzureProperties.java#L126-L147). This makes it difficult to integrate with external authentication flows that produce an arbitrary access token (e.g., OAuth 2.0 Bearer tokens from non-Azure identity providers, custom SSO integrations, or already-acquired Azure AD tokens from another process). It would be valuable if ADLSFileIO could accept a pre-acquired token string directly, without requiring the developer to wrap it in a full TokenCredential or use environment-based auth. **Proposed Solution** Add a new config `adls.token` to [AzureProperties](https://github.com/apache/iceberg/blob/main/azure/src/main/java/org/apache/iceberg/azure/AzureProperties.java) Use it to set `DataLakeFileSystemClientBuilder credential(TokenCredential credential)` https://learn.microsoft.com/en-us/java/api/com.azure.storage.file.datalake.datalakefilesystemclientbuilder?view=azure-java-stable#com-azure-storage-file-datalake-datalakefilesystemclientbuilder-credential(com-azure-core-credential-tokencredential) ### Query engine None ### Willingness to contribute - [x] I can contribute this improvement/feature independently - [x] I would be willing to contribute this improvement/feature with guidance from the Iceberg community - [ ] I cannot contribute this improvement/feature at this time -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
