EKS hook: Update auth. API version to v1 and replace non-POSIX 'source' with '.'

providers/amazon/src/airflow/providers/amazon/aws/hooks/eks.py

@@ -36,7 +36,7 @@
 from airflow.utils import yaml
 
 DEFAULT_PAGINATION_TOKEN = ""
-AUTHENTICATION_API_VERSION = "client.authentication.k8s.io/v1alpha1"
+AUTHENTICATION_API_VERSION = "client.authentication.k8s.io/v1"
 _POD_USERNAME = "aws"
 _CONTEXT_NAME = "aws"
 
@@ -79,8 +79,8 @@ class NodegroupStates(Enum):
 COMMAND = """
             export PYTHON_OPERATORS_VIRTUAL_ENV_MODE=1
 
-            # Source credentials from secure file
-            source {credentials_file}
+            # Load credentials from secure file using (POSIX-compliant dot operator)
+            . {credentials_file}
 
             output=$({python_executable} -m airflow.providers.amazon.aws.utils.eks_get_token \
                 --cluster-name {eks_cluster_name} --sts-url '{sts_url}' {args} 2>&1)

providers/amazon/tests/unit/amazon/aws/hooks/test_eks.py

@@ -1261,13 +1261,13 @@ def test_generate_config_file(self, mock_conn, aws_conn_id, region_name, expecte
             user = config["users"][0]
             assert user["name"] == "aws"
             exec_config = user["user"]["exec"]
-            assert exec_config["apiVersion"] == "client.authentication.k8s.io/v1alpha1"
+            assert exec_config["apiVersion"] == "client.authentication.k8s.io/v1"
             assert exec_config["command"] == "sh"
             assert exec_config["interactiveMode"] == "Never"
 
             # Verify the command references a credential file (not inline creds)
             command_arg = exec_config["args"][1]  # The -c argument content
-            assert f"source {credentials_file}" in command_arg
+            assert f". {credentials_file}" in command_arg  # The dot operator is used for POSIX-compliance
 
             # Verify region arguments are properly included
             if expected_region_args: