Source code for airflow.secrets.environment_variables

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"""Objects relating to sourcing connections from environment variables."""
from __future__ import annotations

import os
import warnings

from airflow.exceptions import RemovedInAirflow3Warning
from airflow.secrets import BaseSecretsBackend

[docs]class EnvironmentVariablesBackend(BaseSecretsBackend): """Retrieves Connection object and Variable from environment variable."""
[docs] def get_conn_uri(self, conn_id: str) -> str | None: """ Return URI representation of Connection conn_id. :param conn_id: the connection id :return: deserialized Connection """ warnings.warn( "This method is deprecated. Please use " "`airflow.secrets.environment_variables.EnvironmentVariablesBackend.get_conn_value`.", RemovedInAirflow3Warning, stacklevel=2, ) return self.get_conn_value(conn_id)
[docs] def get_conn_value(self, conn_id: str) -> str | None: return os.environ.get(CONN_ENV_PREFIX + conn_id.upper())
[docs] def get_variable(self, key: str) -> str | None: """ 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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