knative
Make pod addressability work even in meshes and drop fallbacks
See exhaustive proposal here: https://docs.google.com/document/d/1vUDC_-qWei81QcjI8ZjZJ0Tc4SswUA1gBTSvBqy6CBY/edit?resourcekey=0-C_Yh8KqcLA6Mcr3CQs5Q1Q.
I'll use this as an umbrella to link PRs to.
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A huge chunk of this is done but it needs a little "pushing over the edge" to finish. We were hitting a wall with this when it was discovered that the mesh setup in serving tests maybe wasn't appropriate. I haven't touched it since. What's left is setting it up on the mesh legs and debugging why it doesn't quite work yet.
Sorta related is how operators are able to setup istio and prometheus together to allow scraping of metrics
https://istio.io/latest/docs/ops/integrations/prometheus/#tls-settings