Source code for airflow.secrets.environment_variables

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"""
Objects relating to sourcing connections from environment variables
"""

import os
from typing import Optional

from airflow.secrets import BaseSecretsBackend

[docs]CONN_ENV_PREFIX = "AIRFLOW_CONN_"
[docs]VAR_ENV_PREFIX = "AIRFLOW_VAR_"
[docs]class EnvironmentVariablesBackend(BaseSecretsBackend): """ Retrieves Connection object from environment variable. """ # pylint: disable=missing-docstring
[docs] def get_conn_uri(self, conn_id): # type: (str) -> Optional[str] environment_uri = os.environ.get(CONN_ENV_PREFIX + conn_id.upper()) return environment_uri
[docs] def get_variable(self, key): # type: (str) -> Optional[str] """ Get Airflow Variable from Environment Variable :param key: Variable Key :return: Variable Value """ return os.environ.get(VAR_ENV_PREFIX + key.upper())

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