Add nginx event directive equivalent to Ingress Controller

[lhlhx]

Is your feature request related to a problem? Please describe.
We have a customer would like to understand the cause of a tcp reset by nginx, while the k8s cluster is in production. If the debug mode is on globally that may cause high CPU load and overwhelming of debug logs.
Hence we would like to have event directives included in nginx ingress configMap particularly with debug_connection
https://nginx.org/en/docs/ngx_core_module.html#debug_connection

Describe the solution you'd like
Add event snippet

Describe alternatives you've considered
Add debug_connection arguments should also work if event directives is not good to be exposed for user to edit directly.

Additional context
nil

[github-actions]

Hi @lhlhx thanks for reporting!

Be sure to check out the docs and the Contributing Guidelines while you wait for a human to take a look at this 🙂

Cheers!

[pdabelf5]

@lhlhx Thank you for creating this issue. Currently the only way to achieve what you are asking for is by making use of custom templates. I can see that being able to use event-snippets or setting one or more debug_connection directives would be useful for this type of debugging. The team will investigate this proposal.