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Kubernetes: istio Gateway in a different namespace than VirtualService

If your istio ingress Gateway is in a different namespace than your VirtualService, then you need to make sure you prefix the gateway reference with that namespace. For example, if your istio ingress Gateway is in the ‘default’ namespace, yet your Deployment, Service, and VirtualService are in the namespace ‘helloworld’. apiVersion: networking.istio.io/v1alpha3 kind: VirtualService metadata: Kubernetes: istio Gateway in a different namespace than VirtualService