feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

pkg/controller/openapi/config.go

@@ -0,0 +1,93 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package openapi
+
+import (
+	"github.com/go-openapi/spec"
+
+	"kubesphere.io/kubesphere/pkg/api"
+	ksVersion "kubesphere.io/kubesphere/pkg/version"
+)
+
+func EnrichSwaggerObject(swo *spec.Swagger) {
+	swo.Info = &spec.Info{
+		InfoProps: spec.InfoProps{
+			Title:       "KubeSphere API",
+			Description: "KubeSphere Enterprise OpenAPI",
+			Version:     ksVersion.Get().GitVersion,
+			Contact: &spec.ContactInfo{
+				ContactInfoProps: spec.ContactInfoProps{
+					Name:  "KubeSphere",
+					URL:   "https://kubesphere.com.cn",
+					Email: "support@kubesphere.cloud",
+				},
+			},
+		},
+	}
+	// setup security definitions
+	swo.SecurityDefinitions = map[string]*spec.SecurityScheme{
+		"BearerToken": {SecuritySchemeProps: spec.SecuritySchemeProps{
+			Type:        "apiKey",
+			Name:        "Authorization",
+			In:          "header",
+			Description: "Bearer Token Authentication",
+		}},
+	}
+	swo.Security = []map[string][]string{{"BearerToken": []string{}}}
+	swo.Tags = []spec.Tag{
+
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagAuthentication,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagMultiCluster,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagIdentityManagement,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagAccessManagement,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagClusterResources,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagNamespacedResources,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagComponentStatus,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagUserRelatedResources,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagTerminal,
+			},
+		},
+		{
+			TagProps: spec.TagProps{
+				Name: api.TagNonResourceAPI,
+			},
+		},
+	}
+}

pkg/controller/openapi/openapi_controller.go

@@ -0,0 +1,69 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package openapi
+
+import (
+	"context"
+	"fmt"
+
+	toolscache "k8s.io/client-go/tools/cache"
+	"k8s.io/klog/v2"
+	runtimecache "sigs.k8s.io/controller-runtime/pkg/cache"
+
+	extensionsv1alpha1 "kubesphere.io/api/extensions/v1alpha1"
+
+	"kubesphere.io/kubesphere/kube/pkg/openapi"
+)
+
+var SharedOpenAPIController = NewController()
+
+type Controller struct{}
+
+func NewController() *Controller {
+	return &Controller{}
+}
+
+func (c *Controller) WatchOpenAPIChanges(ctx context.Context, cache runtimecache.Cache, openAPIV2Service openapi.APIServiceManager, openAPIV3Service openapi.APIServiceManager) error {
+	informer, err := cache.GetInformer(ctx, &extensionsv1alpha1.APIService{})
+	if err != nil {
+		return fmt.Errorf("get informer failed: %w", err)
+	}
+	_, err = informer.AddEventHandler(toolscache.FilteringResourceEventHandler{
+		FilterFunc: func(obj interface{}) bool {
+			apiService := obj.(*extensionsv1alpha1.APIService)
+			return apiService.Status.State == extensionsv1alpha1.StateAvailable
+		},
+		Handler: &toolscache.ResourceEventHandlerFuncs{
+			AddFunc: func(obj interface{}) {
+				apiService := obj.(*extensionsv1alpha1.APIService)
+				if err := openAPIV2Service.AddUpdateApiService(apiService); err != nil {
+					klog.Error(err)
+				}
+				if err := openAPIV3Service.AddUpdateApiService(apiService); err != nil {
+					klog.Error(err)
+				}
+			},
+			UpdateFunc: func(old, new interface{}) {
+				apiService := new.(*extensionsv1alpha1.APIService)
+				if err := openAPIV2Service.AddUpdateApiService(apiService); err != nil {
+					klog.Error(err)
+				}
+				if err := openAPIV3Service.AddUpdateApiService(apiService); err != nil {
+					klog.Error(err)
+				}
+			},
+			DeleteFunc: func(obj interface{}) {
+				apiService := obj.(*extensionsv1alpha1.APIService)
+				openAPIV2Service.RemoveApiService(apiService.Name)
+				openAPIV3Service.RemoveApiService(apiService.Name)
+			},
+		},
+	})
+	if err != nil {
+		return fmt.Errorf("add event handler failed: %w", err)
+	}
+	return nil
+}