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

1# 

2# Licensed to the Apache Software Foundation (ASF) under one 

3# or more contributor license agreements. See the NOTICE file 

4# distributed with this work for additional information 

5# regarding copyright ownership. The ASF licenses this file 

6# to you under the Apache License, Version 2.0 (the 

7# "License"); you may not use this file except in compliance 

8# with the License. You may obtain a copy of the License at 

9# 

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

11# 

12# Unless required by applicable law or agreed to in writing, 

13# software distributed under the License is distributed on an 

14# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 

15# KIND, either express or implied. See the License for the 

16# specific language governing permissions and limitations 

17# under the License. 

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

19from __future__ import annotations 

20 

21import os 

22import warnings 

23 

24from airflow.exceptions import RemovedInAirflow3Warning 

25from airflow.secrets import BaseSecretsBackend 

26 

27CONN_ENV_PREFIX = "AIRFLOW_CONN_" 

28VAR_ENV_PREFIX = "AIRFLOW_VAR_" 

29 

30 

31class EnvironmentVariablesBackend(BaseSecretsBackend): 

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

33 

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

35 """ 

36 Return URI representation of Connection conn_id. 

37 

38 :param conn_id: the connection id 

39 

40 :return: deserialized Connection 

41 """ 

42 warnings.warn( 

43 "This method is deprecated. Please use " 

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

45 RemovedInAirflow3Warning, 

46 stacklevel=2, 

47 ) 

48 return self.get_conn_value(conn_id) 

49 

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

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

52 

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

54 """ 

55 Get Airflow Variable from Environment Variable. 

56 

57 :param key: Variable Key 

58 :return: Variable Value 

59 """ 

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