feat: add crd gen

Signed-off-by: runzexia <runzexia@yunify.com>

vendor/k8s.io/apiserver/pkg/server/routes/openapi.go

@@ -0,0 +1,46 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+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 routes
+
+import (
+	restful "github.com/emicklei/go-restful"
+	"k8s.io/klog"
+
+	"k8s.io/apiserver/pkg/server/mux"
+	"k8s.io/kube-openapi/pkg/common"
+	"k8s.io/kube-openapi/pkg/handler"
+)
+
+// OpenAPI installs spec endpoints for each web service.
+type OpenAPI struct {
+	Config *common.Config
+}
+
+// Install adds the SwaggerUI webservice to the given mux.
+func (oa OpenAPI) Install(c *restful.Container, mux *mux.PathRecorderMux) {
+	// NOTE: [DEPRECATION] We will announce deprecation for format-separated endpoints for OpenAPI spec,
+	// and switch to a single /openapi/v2 endpoint in Kubernetes 1.10. The design doc and deprecation process
+	// are tracked at: https://docs.google.com/document/d/19lEqE9lc4yHJ3WJAJxS_G7TcORIJXGHyq3wpwcH28nU.
+	_, err := handler.BuildAndRegisterOpenAPIService("/swagger.json", c.RegisteredWebServices(), oa.Config, mux)
+	if err != nil {
+		klog.Fatalf("Failed to register open api spec for root: %v", err)
+	}
+	_, err = handler.BuildAndRegisterOpenAPIVersionedService("/openapi/v2", c.RegisteredWebServices(), oa.Config, mux)
+	if err != nil {
+		klog.Fatalf("Failed to register versioned open api spec for root: %v", err)
+	}
+}