OpenShift Nutanix CSI Operator - HTTP Proxy

[sveno1990]

Currently it is very difficult to use the CSI Driver for Nutanix (from the operatorhub) on a OpenShift cluster that is behind a HTTP proxy because some of the images for the csi components are located in the k8s.registry.io. This brings two potential issues:

• The k8s.registry.io does not provide a list of CDN's that serve the image layers, making it impossible to whitelist (reliably) behind a HTTP proxy. The CNCF actually discourages to use these registries behind a proxy (or even use them for production).
  
  https://github.com/kubernetes/registry.k8s.io
• The default list to whitelist for OpenShift does not include these url's which would have to be added seperately.
  https://docs.openshift.com/container-platform/4.16/installing/install_config/configuring-firewall.html#configuring-firewall_configuring-firewall

Would it be an option to host the csi driver images in registry.redhat.io?