In the document [1], it is mentioned that it is not supported to modify the environment variables directly by modifying the deployment of Ingress POD.


Whereas in this section [2] of the document, it is mentioned that we can modify the environment variables by modifying the IngressController directly. 

Somewhere the explanation of the document Ingress Controller (router) performance optimizations [1] is misleading for the users. 

Most of the users will think that OpenShift won't support tuning `ROUTER_THREADS, ROUTER_DEFAULT_TUNNEL_TIMEOUT, ROUTER_DEFAULT_CLIENT_TIMEOUT, ROUTER_DEFAULT_SERVER_TIMEOUT, and RELOAD_INTERVAL`. But in fact, they can tune them with tuningOptions [2].


Thus the expectation from this issue is that the section Ingress Controller (router) performance optimizations document [1] should highlight that changing the underlying timeouts variables is supported through the tuningOptions [2] to avoid the confusion.

Routing Optimization document is not highlighting the tunningOptions which is used to modify the Timeouts variables. 

Routing Optimization document should highlight Router Tuning Options to modify the environment variables.

Issue: https://github.com/openshift/openshift-docs/issues/51823