Allow Istio gateway to use HTTPRoute from all namespaces

Author: nicolexin

config/manifests/gateway/istio/resources.yaml

@@ -5,12 +5,14 @@ metadata:
 spec:
   gatewayClassName: istio
   listeners:
-  - allowedRoutes:
-      namespaces:
-        from: Same
-    name: http
+  - name: http
     port: 80
     protocol: HTTP
+    allowedRoutes:
+     kinds:
+     - kind: HTTPRoute
+     namespaces:
+       from: All
 ---
 apiVersion: gateway.networking.k8s.io/v1
 kind: HTTPRoute