Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/airflow/secrets/environment_variables.py: 75%

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10# http://www.apache.org/licenses/LICENSE-2.0 

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

19 

20from __future__ import annotations 

21 

22import os 

23import warnings 

24 

25from airflow.exceptions import RemovedInAirflow3Warning 

26from airflow.secrets import BaseSecretsBackend 

27 

28CONN_ENV_PREFIX = "AIRFLOW_CONN_" 

29VAR_ENV_PREFIX = "AIRFLOW_VAR_" 

30 

31 

32class EnvironmentVariablesBackend(BaseSecretsBackend): 

33 """Retrieves Connection object and Variable from environment variable.""" 

34 

35 def get_conn_uri(self, conn_id: str) -> str | None: 

36 """ 

37 Return URI representation of Connection conn_id. 

38 

39 :param conn_id: the connection id 

40 

41 :return: deserialized Connection 

42 """ 

43 warnings.warn( 

44 "This method is deprecated. Please use " 

45 "`airflow.secrets.environment_variables.EnvironmentVariablesBackend.get_conn_value`.", 

46 RemovedInAirflow3Warning, 

47 stacklevel=2, 

48 ) 

49 return self.get_conn_value(conn_id) 

50 

51 def get_conn_value(self, conn_id: str) -> str | None: 

52 return os.environ.get(CONN_ENV_PREFIX + conn_id.upper()) 

53 

54 def get_variable(self, key: str) -> str | None: 

55 """ 

56 Get Airflow Variable from Environment Variable. 

57 

58 :param key: Variable Key 

59 :return: Variable Value 

60 """ 

61 return os.environ.get(VAR_ENV_PREFIX + key.upper())