[release-1.23] Fix regression in waypoints to use original IP #1254
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Regression from istio#1224 Before that PR (and now the behavior returns), we would use the IP family of the IP stuck in the workload.waypoint or service.waypoint field. This was always IPv4 due to istiod's implementation. With the PR, we started to use the original IP family of the request. Since waypoints had IPv6 addresses, we would use them. Due to another bug in Istiod (fixed in istio/istio#52555), the waypoints didn't actually listen on IPv6, though, so would drop the requests. With this PR, we will continue to send to the IP actually specified. In the near future we will move to hostname references, where we can correctly pick the best IP family based on the request.
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mikemorris
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Aug 7, 2024
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This is an automated cherry-pick of #1253