Support nacos discovery (#108)

pkg/ingress/kube/common/schema.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package common
+
+import (
+	"istio.io/istio/pkg/config/schema/collection"
+	"istio.io/istio/pkg/config/schema/collections"
+)
+
+var IngressIR = collection.NewSchemasBuilder().
+	MustAdd(collections.IstioNetworkingV1Alpha3Destinationrules).
+	MustAdd(collections.IstioNetworkingV1Alpha3Envoyfilters).
+	MustAdd(collections.IstioNetworkingV1Alpha3Gateways).
+	MustAdd(collections.IstioNetworkingV1Alpha3Serviceentries).
+	MustAdd(collections.IstioNetworkingV1Alpha3Virtualservices).
+	Build()

pkg/ingress/kube/common/tool.go

@@ -28,9 +28,20 @@ import (
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/util/version"
 
+	netv1 "github.com/alibaba/higress/client/pkg/apis/networking/v1"
 	. "github.com/alibaba/higress/pkg/ingress/log"
 )
 
+func ValidateBackendResource(resource *v1.TypedLocalObjectReference) bool {
+	if resource == nil || resource.APIGroup == nil ||
+		*resource.APIGroup != netv1.SchemeGroupVersion.Group ||
+		resource.Kind != "McpBridge" || resource.Name != "default" {
+		IngressLog.Warnf("invalid mcpbridge resource: %v", resource)
+		return false
+	}
+	return true
+}
+
 // V1Available check if the "networking/v1" Ingress is available.
 func V1Available(client kube.Client) bool {
 	// check kubernetes version to use new ingress package or not