ode>：</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: reviews
spec:
  parentRefs:
  - group: &#34;&#34;
    kind: Service
    name: reviews
    port: 9080
  rules:
  - matches:
    - headers:
      - name: my-favorite-service-mesh
        value: istio
    filters:
    - type: RequestHeaderModifier
      requestHeaderModifier:
      add:
        - name: hello
          value: world
    backendRefs:
    - name