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Posted to notifications@apisix.apache.org by "zxyao145 (via GitHub)" <gi...@apache.org> on 2023/08/28 09:32:29 UTC
[GitHub] [apisix] zxyao145 opened a new issue, #10096: bug: os.getenv always is nil
zxyao145 opened a new issue, #10096:
URL: https://github.com/apache/apisix/issues/10096
### Current Behavior
In the lua plugin, when using `os.getenv` to get environment variable, the return value is always nil:
```
local pod_ip
function _M.getpod_ip()
if pod_ip then
return pod_ip
end
pod_ip = os.getenv("POD_IP")
log.error("get pod_ip result: ", pod_ip)
if pod_ip == nil then
pod_ip = "127.0.0.1"
end
return pod_ip
end
```
### Expected Behavior
get environment variables correctly.
### Error Logs
see the picture
### Steps to Reproduce
Code as described above, and use it in plugins.
In my case, it's in the OpenTelemetry plugin and we need to expose the IP address.
### Environment
- APISIX version (run `apisix version`): 2.14.1
- Operating system (run `uname -a`): api7/apisix-base:1.19.9.1.6
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): 1.19.9.1
- etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`): 3.4.0
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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[GitHub] [apisix] Revolyssup commented on issue #10096: bug: os.getenv always is nil
Posted by "Revolyssup (via GitHub)" <gi...@apache.org>.
Revolyssup commented on issue #10096:
URL: https://github.com/apache/apisix/issues/10096#issuecomment-1695558520
@zxyao145 The env variables are not automatically passed in the nginx process. You need to declare them [here](https://github.com/apache/apisix/blob/704645f6114ce6f2a4fe79857a8049e693f3878c/conf/config-default.yaml#L168) so that APISIX can add them explicitly in your config.
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[GitHub] [apisix] zxyao145 commented on issue #10096: bug: os.getenv always is nil
Posted by "zxyao145 (via GitHub)" <gi...@apache.org>.
zxyao145 commented on issue #10096:
URL: https://github.com/apache/apisix/issues/10096#issuecomment-1695596573
@Revolyssup Thanks a lot! This is helpful!
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[GitHub] [apisix] zxyao145 closed issue #10096: bug: os.getenv always is nil
Posted by "zxyao145 (via GitHub)" <gi...@apache.org>.
zxyao145 closed issue #10096: bug: os.getenv always is nil
URL: https://github.com/apache/apisix/issues/10096
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