ashb commented on code in PR #29623:
URL: https://github.com/apache/airflow/pull/29623#discussion_r1119800410
##########
airflow/providers/amazon/aws/hooks/base_aws.py:
##########
@@ -312,19 +312,35 @@ def _get_web_identity_credential_fetcher(
base_session = self.basic_session._session or
botocore.session.get_session()
client_creator = base_session.create_client
federation =
self.extra_config.get("assume_role_with_web_identity_federation")
- if federation == "google":
- web_identity_token_loader =
self._get_google_identity_token_loader()
- else:
- raise AirflowException(
- f'Unsupported federation: {federation}. Currently "google"
only are supported.'
- )
+
+ web_identity_token_loader = (
+ {
+ "file": self._get_file_token_loader,
+ "google": self._get_google_identity_token_loader,
+ }.get(federation)()
+ if type(federation) == str
+ else None
+ )
Review Comment:
The point of this feature is for cases such as where a user deploys with
AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY env vars, but wants to move towards
a more secure approach.
The long and the short of it: This is useful to help users use AWS in the
many different ways they want to.
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