title: Is there a way to hook into a Kubernetes Ingress Resource change event?
body: <p>I'm creating a minimal custom ingress controller in dotnet core. I can access the k8s ingress resources by querying the api server, but polling doesn't seem like a good solution to update ingress rules since in my use case they aren't changed that often but if they change, the changes should be applied right away.</p>
  
  <p>Is there a way to receive notifications on ingress resource changes? Like registering a webhook or something along the lines? Or is polling the only way?</p>