Use full object for prefix redirect example

Author: rainest

examples/v1alpha2/http-redirect-rewrite/httproute-redirect-prefix.yaml

@@ -1,6 +1,23 @@
+apiVersion: gateway.networking.k8s.io/v1alpha2
+kind: HTTPRoute
+metadata:
+  name: http-filter-redirect
+spec:
+  hostnames:
+    - redirect.example
+  rules:
+    - matches:
+      - path:
+          type: PathPrefix
+          value: /cayenne
+      filters:
       - type: RequestRedirect
         requestRedirect:
           path:
             type: ReplacePrefixMatch
             replacePrefixMatch: /paprika
           statusCode: 302
+      backendRefs:
+      - name: example-svc
+        weight: 1
+        port: 80