tests/testdata/config/rule-redirect-injection.yaml

apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
  name: redirect
  namespace: testns
spec:
   hosts:
   - redirect.test.istio.io
   ports:
   - number: 8080
     name: http
     protocol: HTTP
   resolution: STATIC
   endpoints:
    - address: 127.0.0.2
      ports:
        http: 8080
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: redirect
  namespace: testns
spec:
  hosts:
    - redirect.test.istio.io
  http:
    - match:
      - headers:
          testredirect:
            exact: enabled
      redirect:
        uri: /new/path
        authority: redirect2.test.istio.io