[GitHub] [apisix] nanamikon opened a new issue #3055: bug: environment variable can not work well in yaml

[GitBox]

nanamikon opened a new issue #3055:
URL: https://github.com/apache/apisix/issues/3055


   ### Issue description
   
   
   ### Environment
   
   * apisix version (cmd: `apisix version`): 2.1
   * OS: mac
   
   ### Minimal test code / Steps to reproduce the issue
   config.ymal
   ```
   etcd:
     prefix: "/apisix${{CLUSTER_PATH}}"
     timeout: 30
   ```
   
   export and run
   ```
   export CLUSTER_PATH=/TEST
   ./bin/apisix start
   ```
   
   The path of plugins is not correct
   ```
   /apisix${{CLUSTER_PATH}}/plugins
   
[{"name":"api-breaker"},{"name":"authz-keycloak"},{"name":"basic-auth"},{"name":"batch-requests"},{"name":"consumer-restriction"},{"name":"cors"},{"name":"echo"},{"name":"fault-injection"},{"name":"grpc-transcode"},{"name":"hmac-auth"},{"name":"http-logger"},{"name":"ip-restriction"},{"name":"jwt-auth"},{"name":"kafka-logger"},{"name":"key-auth"},{"name":"limit-conn"},{"name":"limit-count"},{"name":"limit-req"},{"name":"node-status"},{"name":"openid-connect"},{"name":"prometheus"},{"name":"proxy-cache"},{"name":"proxy-mirror"},{"name":"proxy-rewrite"},{"name":"redirect"},{"name":"referer-restriction"},{"name":"request-id"},{"name":"request-validation"},{"name":"response-rewrite"},{"name":"serverless-post-function"},{"name":"serverless-pre-function"},{"name":"sls-logger"},{"name":"syslog"},{"name":"tcp-logger"},{"name":"udp-logger"},{"name":"uri-blocker"},{"name":"wolf-rbac"},{"name":"zipkin"},{"stream":true,"name":"mqtt-proxy"}]
   /apisix/TEST/consumers/
   init_dir
   /apisix/TEST/global_rules/
   init_dir
   /apisix/TEST/node_status/
   init_dir
   /apisix/TEST/plugin_metadata/
   init_dir
   /apisix/TEST/plugins/
   init_dir
   /apisix/TEST/proto/
   init_dir
   /apisix/TEST/routes/
   init_dir
   /apisix/TEST/services/
   init_dir
   /apisix/TEST/ssl/
   init_dir
   /apisix/TEST/stream_routes/
   init_dir
   /apisix/TEST/upstreams/
   init_dir
   
   ```
   
   
   ### What's the actual result? (including assertion message & call stack if 
applicable)
   
   
   
   ### What's the expected result?
   ``
   /apisix${{CLUSTER_PATH}}/plugins
   ```
   
   ->
   
   ```
   /apisix/TEST/plugins
   ```


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