ilya-tishonok opened a new issue, #11239: URL: https://github.com/apache/apisix/issues/11239
### Current Behavior When running Apache APISIX in standalone mode, there seems to be an issue with the environment variable substitution mechanism where variables with a common prefix are not correctly recognized. This results in the wrong values being used for certain configuration settings. For example for configuration (```apisix.yaml```): ```yaml organizations_server: keepalive_pool: ${{ORGANIZATIONS_SERVER_KEEPALIVE_POOL}} keepalive_timeout: ${{ORGANIZATIONS_SERVER_KEEPALIVE_TIMEOUT}} keepalive: ${{ORGANIZATIONS_SERVER_KEEPALIVE}} ``` and envs: ```ORGANIZATIONS_SERVER_KEEPALIVE_POOL=60000``` ```ORGANIZATIONS_SERVER_KEEPALIVE_TIMEOUT=10000``` ```ORGANIZATIONS_SERVER_KEEPALIVE=wrong_value``` values for keepalive_pool and keepalive_timeout are incorrectly populated with the value of ORGANIZATIONS_SERVER_KEEPALIVE (i.e., ```wrong_value```). ### Expected Behavior Configuration values should be correctly populated according to their corresponding environment variables based on unique, fully matched variable names. ### Error Logs ![image](https://github.com/apache/apisix/assets/67690609/a7cea746-e88e-44ca-9c7f-121c748fcc7c) ### Steps to Reproduce 1. Ensure basic config.yaml and apisix.yaml configurations are set up for APISIX in standalone mode. 2. Modify the configuration to reference environment variables that share the same prefix but are intended for different settings. For example, include references to TEST_ENV_CORRECT and TEST_ENV in the configuration as follows: ```yaml example_config: correct_value: ${{TEST_ENV_CORRECT}} base_value: ${{TEST_ENV}} ``` 3. Set the environment variables to different values: ```TEST_ENV_CORRECT=expected_value``` ```TEST_ENV=base_value``` 4. Start APISIX. ### Environment - Docker image: apache/apisix:3.8.0-debian -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@apisix.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org