def unpack_auth_b64(self, docker_registry):
        """Decode and unpack base64 'auth' credentials from config file.

        :param docker_registry: str, registry reference in config file

        :return: namedtuple, UnpackedAuth (or None if no 'auth' is available)
        """
        UnpackedAuth = namedtuple('UnpackedAuth', ['raw_str', 'username', 'password'])
        credentials = self.get_credentials(docker_registry)
        auth_b64 = credentials.get('auth')
        if auth_b64:
            raw_str = b64decode(auth_b64).decode('utf-8')
            unpacked_credentials = raw_str.split(':', 1)
            if len(unpacked_credentials) == 2:
                return UnpackedAuth(raw_str, *unpacked_credentials)
            else:
                raise ValueError("Failed to parse 'auth' in '%s'" % self.json_secret_path)
def unpack_auth_b64 ( self , docker_registry ) : UnpackedAuth = namedtuple ( 'UnpackedAuth' , [ 'raw_str' , 'username' , 'password' ] ) credentials = self . get_credentials ( docker_registry ) auth_b64 = credentials . get ( 'auth' ) if auth_b64 : raw_str = b64decode ( auth_b64 ) . decode ( 'utf-8' ) unpacked_credentials = raw_str . split ( ':' , 1 ) if len ( unpacked_credentials ) == 2 : return UnpackedAuth ( raw_str , * unpacked_credentials ) else : raise ValueError ( "Failed to parse 'auth' in '%s'" % self . json_secret_path )
Decode and unpack base64 'auth' credentials from config file.

        :param docker_registry: str, registry reference in config file

        :return: namedtuple, UnpackedAuth (or None if no 'auth' is available)