Reverse Proxy on Kubernetes

This isn’t the ip of my ingress-controller. This is the ip of my VM hosting the NGINX configuration that is behind Rancher.

This was effectively trusted_domains. But I’ve tried with the following snippets too without any success:

 'trusted_domains' =>
  array (
          0 => 'mydomain.com',
          1 => '<load balancer ip>',
          2 => '127.0.0.1',
          3 => '10.42.2.184', // = Pod IP
          4 => '<ip node1>',
          5 => '<ip node2>',
          6 => '<ip node3>'
  ),
  'trusted_proxies' =>
  array (
          0 => 'mydomain.com',
          1 => '<load balancer ip>',
          2 => '127.0.0.1',
          3 => '10.42.2.184', // = Pod IP
          4 => '<ip node1>',
          5 => '<ip node2>',
          6 => '<ip node3>'
  )

Do you have any tips on how I could add this to my nginx-controller ?
I’m new to Kubernetes and as far as I know the config file is generated by following ingress rules ?

Thanks for your help.