Customer of openshift/kubernetes which uses NFS as there persistent volume type want sometimes to change the mount options.
The main reason why this blog post exist is that OpenShift V3 and Kubernetes is very close binded to port 8443. This could be changed in the future.
Since OpenShift Enterprise 3.4 are both ports
Configuring Master API and Console Ports.
I used several times a dedicated haproxy pod to provide access to the OpenShift v3 Web console and api on port 443 (https).
This concept could also be used for different services in the PaaS which are able to talk via SNI.