rambleraptor opened a new pull request, #2072:
URL: https://github.com/apache/iceberg-python/pull/2072
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# Rationale for this change
Matches this [Java PR](https://github.com/apache/iceberg/pull/13212)
Google's authentication for BigQuery involves using different authentication
methods than the current AuthManagers support. This allows users to
authenticate against the BigLake REST Catalog (formerly known as the BigQuery
REST Catalog)
The GoogleAuthManager introduces authentication methods that are more
convenient for GCP users, differing from the generic OAuth2 flow:
* Application Default Credentials (ADC) Support: Provides out-of-the-box,
zero-configuration authentication when the Iceberg client runs within GCP
environments (e.g., Compute Engine, GKE, Cloud Functions). This is a
significant usability improvement over manually setting up OAuth2 parameters.
* Service Account Key File Support: Allows users to authenticate by directly
providing a path to a GCP service account JSON key file. This is a common and
secure way to authenticate applications with GCP services, and is more specific
than the generic token or client secret mechanisms.
* Configurable OAuth Scopes: While the generic OAuth2Manager also supports
scopes, GoogleAuthManager defaults to scopes commonly used for GCP services and
allows easy customization via the gcp.auth.scopes property.
# Are these changes tested?
Unit tests included.
# Are there any user-facing changes?
Adds support for Google authentication
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