fix: cannot use ingress when disabling gateway API

Author: AlinsRan

internal/controller/httproutepolicy.go

@@ -45,7 +45,8 @@ func (r *HTTPRouteReconciler) processHTTPRoutePolicies(tctx *provider.TranslateC
 		key  = indexer.GenIndexKeyWithGK(gatewayv1.GroupName, internaltypes.KindHTTPRoute, httpRoute.GetNamespace(), httpRoute.GetName())
 	)
 	if err := r.List(context.Background(), &list, client.MatchingFields{indexer.PolicyTargetRefs: key}); err != nil {
-		return err
+		r.Log.Error(err, "failed to list HTTPRoutePolicies for HTTPRoute", "httproute", utils.NamespacedName(httpRoute))
+		return nil
 	}
 
 	if len(list.Items) == 0 {
@@ -109,7 +110,8 @@ func (r *HTTPRouteReconciler) updateHTTPRoutePolicyStatusOnDeleting(ctx context.
 		key  = indexer.GenIndexKeyWithGK(gatewayv1.GroupName, internaltypes.KindHTTPRoute, nn.Namespace, nn.Name)
 	)
 	if err := r.List(ctx, &list, client.MatchingFields{indexer.PolicyTargetRefs: key}); err != nil {
-		return err
+		r.Log.Error(err, "failed to list HTTPRoutePolicies for HTTPRoute", "httproute", nn)
+		return nil
 	}
 	var (
 		httpRoutes = make(map[types.NamespacedName]gatewayv1.HTTPRoute)
@@ -141,7 +143,8 @@ func (r *IngressReconciler) processHTTPRoutePolicies(tctx *provider.TranslateCon
 		key  = indexer.GenIndexKeyWithGK(networkingv1.GroupName, internaltypes.KindIngress, ingress.GetNamespace(), ingress.GetName())
 	)
 	if err := r.List(context.Background(), &list, client.MatchingFields{indexer.PolicyTargetRefs: key}); err != nil {
-		return err
+		r.Log.Error(err, "failed to list HTTPRoutePolicies for Ingress", "ingress", utils.NamespacedName(ingress))
+		return nil
 	}
 
 	if len(list.Items) == 0 {
@@ -183,7 +186,8 @@ func (r *IngressReconciler) updateHTTPRoutePolicyStatusOnDeleting(ctx context.Co
 		key  = indexer.GenIndexKeyWithGK(networkingv1.GroupName, internaltypes.KindIngress, nn.Namespace, nn.Name)
 	)
 	if err := r.List(ctx, &list, client.MatchingFields{indexer.PolicyTargetRefs: key}); err != nil {
-		return err
+		r.Log.Error(err, "failed to list HTTPRoutePolicies for Ingress", "ingress", nn)
+		return nil
 	}
 	var (
 		ingress2ParentRef = make(map[types.NamespacedName]gatewayv1.ParentReference)

internal/controller/indexer/indexer.go

@@ -88,6 +88,7 @@ func SetupIndexer(mgr ctrl.Manager) error {
 		&networkingv1.IngressClass{}:      setupIngressClassIndexer,
 		&networkingv1beta1.IngressClass{}: setupIngressClassV1beta1Indexer,
 		&v1alpha1.BackendTrafficPolicy{}:  setupBackendTrafficPolicyIndexer,
+		&v1alpha1.HTTPRoutePolicy{}:       setHTTPRoutePolicyIndexer,
 	} {
 		if utils.HasAPIResource(mgr, resource) {
 			if err := setup(mgr); err != nil {
@@ -275,7 +276,10 @@ func setupHTTPRouteIndexer(mgr ctrl.Manager) error {
 	); err != nil {
 		return err
 	}
+	return nil
+}
 
+func setHTTPRoutePolicyIndexer(mgr ctrl.Manager) error {
 	if err := mgr.GetFieldIndexer().IndexField(
 		context.Background(),
 		&v1alpha1.HTTPRoutePolicy{},
@@ -284,7 +288,6 @@ func setupHTTPRouteIndexer(mgr ctrl.Manager) error {
 	); err != nil {
 		return err
 	}
-
 	return nil
 }