Envoy virtual host creation logging

Networking
1

Hi,

I’m trying to determine why an envoy virtual host is not being created. Here’s the relevant gateway and virtual service:

---
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: star-cert
  namespace: istio-system
spec:
  selector:
    istio: ingressgateway
  servers:
  - hosts:
    - '*'
    port:
      name: http-passthrough
      number: 80
      protocol: HTTP
    tls:
      mode: PASSTHROUGH
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: shorthand
spec:
  gateways:
  - star-cert.istio-system
  hosts:
  - '*'
  http:
  - match:
    - authority:
        exact: foo
    redirect:
      authority: foo.company.com

For one cluster I tried this on istioctl proxy-config route showed me a “*.80” virtual host as expected and I’ve successfully used the route. On another cluster the route does not exist. How can I tell if there is a misconfiguration? Are there logs for when virtual hosts are created? Any help is appreciated.