Source code for airflow.secrets.base_secrets

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import warnings
from abc import ABC
from typing import TYPE_CHECKING, List, Optional

    from airflow.models.connection import Connection

[docs]class BaseSecretsBackend(ABC): """Abstract base class to retrieve Connection object given a conn_id or Variable given a key""" @staticmethod
[docs] def build_path(path_prefix: str, secret_id: str, sep: str = "/") -> str: """ Given conn_id, build path for Secrets Backend :param path_prefix: Prefix of the path to get secret :param secret_id: Secret id :param sep: separator used to concatenate connections_prefix and conn_id. Default: "/" """ return f"{path_prefix}{sep}{secret_id}"
[docs] def get_conn_value(self, conn_id: str) -> Optional[str]: """ Retrieve from Secrets Backend a string value representing the Connection object. If the client your secrets backend uses already returns a python dict, you should override ``get_connection`` instead. :param conn_id: connection id """ raise NotImplementedError
[docs] def deserialize_connection(self, conn_id: str, value: str) -> 'Connection': """ Given a serialized representation of the airflow Connection, return an instance. Looks at first character to determine how to deserialize. :param conn_id: connection id :param value: the serialized representation of the Connection object :return: the deserialized Connection """ from airflow.models.connection import Connection value = value.strip() if value[0] == '{': return Connection.from_json(conn_id=conn_id, value=value) else: return Connection(conn_id=conn_id, uri=value)
[docs] def get_conn_uri(self, conn_id: str) -> Optional[str]: """ Get conn_uri from Secrets Backend This method is deprecated and will be removed in a future release; implement ``get_conn_value`` instead. :param conn_id: connection id """ raise NotImplementedError()
[docs] def get_connection(self, conn_id: str) -> Optional['Connection']: """ Return connection object with a given ``conn_id``. Tries ``get_conn_value`` first and if not implemented, tries ``get_conn_uri`` :param conn_id: connection id """ value = None not_implemented_get_conn_value = False # TODO: after removal of ``get_conn_uri`` we should not catch NotImplementedError here try: value = self.get_conn_value(conn_id=conn_id) except NotImplementedError: not_implemented_get_conn_value = True warnings.warn( "Method `get_conn_uri` is deprecated. Please use `get_conn_value`.", PendingDeprecationWarning, stacklevel=2, ) if not_implemented_get_conn_value: try: value = self.get_conn_uri(conn_id=conn_id) except NotImplementedError: raise NotImplementedError( f"Secrets backend {self.__class__.__name__} neither implements " "`get_conn_value` nor `get_conn_uri`. Method `get_conn_uri` is " "deprecated and will be removed in a future release. Please implement `get_conn_value`." ) if value: return self.deserialize_connection(conn_id=conn_id, value=value) else: return None
[docs] def get_connections(self, conn_id: str) -> List['Connection']: """ Return connection object with a given ``conn_id``. :param conn_id: connection id """ warnings.warn( "This method is deprecated. Please use " "`airflow.secrets.base_secrets.BaseSecretsBackend.get_connection`.", PendingDeprecationWarning, stacklevel=2, ) conn = self.get_connection(conn_id=conn_id) if conn: return [conn] return []
[docs] def get_variable(self, key: str) -> Optional[str]: """ Return value for Airflow Variable :param key: Variable Key :return: Variable Value """ raise NotImplementedError()
[docs] def get_config(self, key: str) -> Optional[str]: """ Return value for Airflow Config Key :param key: Config Key :return: Config Value """ return None

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