title: One ingress for two controllers
body: <p>Suppose I have two Ingress Controllers handling <code>ingress-class</code> <code>nginx-internal</code> and <code>nginx-external</code>.
  I want to expose a service with an Ingress, but I want it to be reachable on any of the controllers (ie. two Load Balancers).</p>
  <p>I know a solution would be to create two ingresses with <code>kubernetes.io/ingress.class: nginx-internal</code> and <code>kubernetes.io/ingress.class: nginx-external</code> on each.</p>
  <p>But :</p>
  <ul>
  <li>all the content of ingress would be duplicated (only the ingress.class annotation would be different)</li>
  <li>all helm charts I use does not allow to define multiple ingress (ex: keycloak, mercure, etc)</li>
  </ul>
  <p>Do I have other choice than fork all charts I want to use just to allow me to declare multiple ingresses ?</p>