AKS managed Gateway API blocks the ALB controller
I was setting up Application Gateway for Containers (AGC) as the ingress layer for a project cluster. The AKS add-on makes it look straightforward in Bicep - enable it, deploy your Gateway and HTTPRoute manifests, done. What I ran into instead was a version deadlock between two managed add-ons that left the Gateway stuck at PROGRAMMED: Unknown for twelve hours and Front Door returning 504 the whole time.
This is what happened, why, and how I got out of it.
