collado-mike opened a new issue, #550: URL: https://github.com/apache/polaris/issues/550
### Is your feature request related to a problem? Please describe. GCP supports [service account impersonation](https://cloud.google.com/iam/docs/service-account-impersonation), so that given credentials for a service account, it's possible to impersonate a different service account, given that the first is granted privileges to do so. The `GcpStorageConfigurationInfo` catalog configuration [here](https://github.com/apache/polaris/blob/main/polaris-core/src/main/java/org/apache/polaris/core/storage/gcp/GcpStorageConfigurationInfo.java#L39-L40) actually has a `gcpServiceAccount` field that we never use when vending GCS storage credentials. We can use the code in https://cloud.google.com/iam/docs/create-short-lived-credentials-direct#create-access to assume the target service account, then generate a short-lived token that has the target service account's privileges subscoped to the table location during the credential vending process. ### Describe the solution you'd like _No response_ ### Describe alternatives you've considered _No response_ ### Additional context _No response_ -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
