diaosj opened a new issue #3017: URL: https://github.com/apache/apisix/issues/3017
### Issue description I noticed that version v2.1 supports environment variables in the configuration file: https://github.com/apache/apisix/pull/2743. I wrote these lines below to `conf/config.yaml`: ```yaml etcd: host: - "http://${{ETCD_HOST}}:2379"; prefix: "/apisix" timeout: 30 tls: verify: false ``` I run the docker image with the corresponding environment variable and config file as below: ```bash docker run -e TZ=Asia/Shanghai -e ETCD_HOST=`ipconfig getifaddr en0` -p 9080:9080 -p 9443:9443 -v `pwd`/conf/config-default.yaml:/usr/local/apisix/conf/config-default.yaml -v `pwd`/conf/config.yaml:/usr/local/apisix/conf/config.yaml -v `pwd`/plugins:/usr/local/apisix/apisix/plugins -v `pwd`/logs/error.log:/usr/local/apisix/logs/error.log apache/apisix:2.1-centos ``` Then I call the admin API. But the response is like this: ```json { "error_msg": "invalid http host: http://${{ETCD_HOST}}:2379, err: not matched" } ``` I searched for this message in the repository. This message looks like from here: https://github.com/api7/lua-resty-etcd/blob/master/lib/resty/etcd/v3.lua#L155 It seems like that etcd client still use "${{ETCD_HOST}}" literally when admin API is called. ### Environment * apisix version (cmd: `apisix version`): 2.1 * OS: docker image (apache/apisix:2.1-centos) ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
