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/manager.go

@@ -0,0 +1,98 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package controller
+
+import (
+	"context"
+	"fmt"
+	"sort"
+
+	"github.com/Masterminds/semver/v3"
+	"k8s.io/klog/v2"
+	"sigs.k8s.io/controller-runtime/pkg/manager"
+
+	"kubesphere.io/kubesphere/pkg/controller/options"
+	"kubesphere.io/kubesphere/pkg/simple/client/k8s"
+	"kubesphere.io/kubesphere/pkg/utils/clusterclient"
+)
+
+const (
+	SyncFailed            = "SyncFailed"
+	Synced                = "Synced"
+	MessageResourceSynced = "Synced successfully"
+)
+
+type Controller interface {
+	Name() string
+	SetupWithManager(mgr *Manager) error
+}
+
+type Hideable interface {
+	Hidden() bool
+}
+
+type ClusterSelector interface {
+	Enabled(clusterRole string) bool
+}
+
+type Manager struct {
+	options.Options
+	manager.Manager
+	K8sClient k8s.Client
+	IsControllerEnabled
+	ClusterClient clusterclient.Interface
+	K8sVersion    *semver.Version
+}
+
+type IsControllerEnabled func(controllerName string) bool
+
+func (mgr *Manager) Run(ctx context.Context, registry Registry) error {
+	for name, ctr := range registry {
+		if mgr.IsControllerEnabled(name) {
+			if clusterSelector, ok := ctr.(ClusterSelector); ok &&
+				!clusterSelector.Enabled(mgr.MultiClusterOptions.ClusterRole) {
+				klog.Infof("%s controller is enabled but is not going to run due to its dependent component being disabled.", name)
+				continue
+			}
+			if err := ctr.SetupWithManager(mgr); err != nil {
+				return fmt.Errorf("unable to setup %s controller: %v", name, err)
+			} else {
+				klog.Infof("%s controller is enabled and added successfully.", name)
+			}
+		} else {
+			klog.Infof("%s controller is disabled by controller selectors.", name)
+		}
+	}
+	klog.V(0).Info("Starting the controllers.")
+	if err := mgr.Manager.Start(ctx); err != nil {
+		return fmt.Errorf("unable to start the controller manager: %v", err)
+	}
+	return nil
+}
+
+func Register(controller Controller) error {
+	if _, exist := Controllers[controller.Name()]; exist {
+		return fmt.Errorf("controller %s already exists", controller.Name())
+	}
+	Controllers[controller.Name()] = controller
+	return nil
+}
+
+var Controllers = make(Registry)
+
+type Registry map[string]Controller
+
+func (r Registry) Keys() []string {
+	var keys []string
+	for k, v := range r {
+		if hidden, ok := v.(Hideable); ok && hidden.Hidden() {
+			continue
+		}
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	return keys
+}