ykoyfman
commented
4 years ago We should add Kiali service graph visualizations here showing the PassThroughCluster situation when host headers are modified and we can discuss how to use ServiceEntries to avoid the passthrucluster for external services.
In the course of the intern project we encountered a tricky Istio issue that took several days to solve. Had to do with code that modifies http headers - and triggers a little known rule that silently breaks routing inside the mesh Blog post that goes into the investigation and inner workings of Envoy proxy.