def provider_parser(subparser):
    """Module provider for Aliyun"""
    subparser.description = """
        Aliyun Provider requires an access key id and access secret with full rights on dns.
        Better to use RAM on Aliyun cloud to create a specified user for the dns operation.
        The referrence for Aliyun DNS production: 
        https://help.aliyun.com/product/29697.html"""
    subparser.add_argument('--auth-key-id', help=
        'specify access key id for authentication')
    subparser.add_argument('--auth-secret', help=
        'specify access secret for authentication')
