Timeout error - OCSP responder query - inside Kubernetes network

I have a replicaset running openresty inside a kubernetes network. Everytime I try to access some domains that are pointed to our host, I get this error:

```shell
021/09/23 13:38:14 [error] 32#0: *2831 [lua] ssl_certificate.lua:260: set_response_cert(): auto-ssl: failed to set ocsp stapling for academiamedica.com.br - continuing anyway - failed to get ocsp response: OCSP responder query failed (http://r3.o.lencr.org): timeout, context: ssl_certificate_by_lua*, client: xxx.xxx.xxx.xxx, server: 0.0.0.0:443
```

Is there any other configuration to apply to make autossl works inside a kubernetes' pod?

Start with the error from ssl_certificate.lua:260 and the auto-ssl OCSP stapling path. Check whether the Kubernetes pod can reach the OCSP responder at http://r3.o.lencr.org and identify any configuration needed for that network path. Done means determining the cause of the timeout and documenting or verifying a working configuration.

Written by the indexing model from the issue text.