utils.py 文件源码

def import_ssh_key(private_key_file, passphrase=None):
    """
    Import contents from RSA private key file

    param private_key_file: path to private key file 

    param passphrase: passphrase for the private key, by default
            None

    return: contents from private key file
    """
    key_file_contents = None
    private_key_file = os.path.abspath(private_key_file)
    try:
        with open(private_key_file, 'r') as key_file:
            key_file_contents = key_file.readlines()
        return RSA.importKey(key_file_contents, passphrase=passphrase)
    except IOError as ie:
        raise exception.PrivateKeyNotFound(private_key_file)
    except Exception as e:
        raise exception.ImportKeyError(private_key_file)