We’re trying to use an Application Gateway with Istio. I need an internal load balancer IP to point my Application gateway to. How do I go about doing this?
You can add annotation cloud.google.com/load-balancer-type: internal for istio-ingressgateway service. after that you get a new EXTERNAL-IP and use it for upstream target.
We finally figured out the right annotation for us, pointed our Azure Application Gateway’s backend to the external IP, which was an internal IP, and it worked perfectly. Awesome stuff.