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�� ���� ��z DataSourceAliYun.crawl_metadatac C s* t |tj�r|jdkrt�d� d| _dS )z=Exception handler for Ecs to refresh token if token is stale.i� z+Clearing cached Ecs API token due to expiryNT)rI rb rh �coderN r` ri �r �msg� exceptionr r r r| � s
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z DataSourceAliYun._get_headersc C sF t |tj�r!|jr!|jdkr!|jdkrt�d� |�t�d� |�dS )a2 Fail quickly on proper AWS if IMDSv2 rejects API token request
Guidance from Amazon is that if IMDSv2 had disabled token requests
by returning a 403, or cloud-init malformed requests resulting in
other 40X errors, we want the datasource detection to fail quickly
without retries as those symptoms will likely not be resolved by
retries.
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temporarily unroutable or unavailable will still retry due to the
callsite wait_for_url.
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metadata service. If the metadata service provides network configuration
then render the network configuration for that instance based on metadata.
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