feat: add imagesearch provider (#6449)

* feat: add imagesearch provider



* update



* update



* update



* update url and queries



* add func getProviderTypeByHost



---------

Signed-off-by: wenhaozhou <wenhaozhou@yunify.com>
Signed-off-by: hongming <coder.scala@gmail.com>
Co-authored-by: wenhaozhou <wenhaozhou@yunify.com>

pkg/models/registries/imagesearch/controller.go

@@ -0,0 +1,132 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
+package imagesearch
+
+import (
+	"context"
+	"fmt"
+	"sync"
+
+	v1 "k8s.io/api/core/v1"
+	toolscache "k8s.io/client-go/tools/cache"
+	"k8s.io/klog/v2"
+	runtimecache "sigs.k8s.io/controller-runtime/pkg/cache"
+
+	"kubesphere.io/kubesphere/pkg/constants"
+)
+
+var SharedImageSearchProviderController = NewController()
+
+const (
+	dockerHubRegisterProvider = "DockerHubRegistryProvider"
+	harborRegisterProvider    = "HarborRegistryProvider"
+
+	SecretTypeImageSearchProvider = "config.kubesphere.io/imagesearchprovider"
+)
+
+type Controller struct {
+	imageSearchProviders      *sync.Map
+	imageSearchProviderConfig *sync.Map
+}
+
+func NewController() *Controller {
+	return &Controller{
+		imageSearchProviders:      &sync.Map{},
+		imageSearchProviderConfig: &sync.Map{}}
+}
+
+func (c *Controller) WatchConfigurationChanges(ctx context.Context, cache runtimecache.Cache) error {
+	informer, err := cache.GetInformer(ctx, &v1.Secret{})
+	if err != nil {
+		return fmt.Errorf("get informer failed: %w", err)
+	}
+
+	c.initGenericProvider()
+
+	_, err = informer.AddEventHandler(toolscache.FilteringResourceEventHandler{
+		FilterFunc: func(obj interface{}) bool {
+			return IsImageSearchProviderConfiguration(obj.(*v1.Secret))
+		},
+		Handler: &toolscache.ResourceEventHandlerFuncs{
+			AddFunc: func(obj interface{}) {
+				c.OnConfigurationChange(obj.(*v1.Secret))
+			},
+			UpdateFunc: func(old, new interface{}) {
+				c.OnConfigurationChange(new.(*v1.Secret))
+			},
+			DeleteFunc: func(obj interface{}) {
+				c.OnConfigurationDelete(obj.(*v1.Secret))
+			},
+		},
+	})
+
+	if err != nil {
+		return fmt.Errorf("add event handler failed: %w", err)
+	}
+
+	return nil
+}
+
+func (c *Controller) GetDefaultProvider() SearchProvider {
+	provider, _ := c.imageSearchProviders.Load(dockerHubRegisterProvider)
+	return provider.(SearchProvider)
+}
+
+func (c *Controller) initGenericProvider() {
+	dockerHubProvider, _ := searchProviderFactories[dockerHubRegisterProvider].Create(nil)
+	c.imageSearchProviders.Store(dockerHubRegisterProvider, dockerHubProvider)
+
+	harborProvider, _ := searchProviderFactories[harborRegisterProvider].Create(nil)
+	c.imageSearchProviders.Store(harborRegisterProvider, harborProvider)
+}
+
+func IsImageSearchProviderConfiguration(secret *v1.Secret) bool {
+	if secret.Namespace != constants.KubeSphereNamespace {
+		return false
+	}
+	return secret.Type == SecretTypeImageSearchProvider
+}
+
+func (c *Controller) OnConfigurationDelete(secret *v1.Secret) {
+	configuration, err := UnmarshalFrom(secret)
+	if err != nil {
+		klog.Errorf("failed to unmarshal secret data: %s", err)
+		return
+	}
+	c.imageSearchProviders.Delete(configuration.Name)
+	c.imageSearchProviderConfig.Delete(configuration.Name)
+}
+
+func (c *Controller) OnConfigurationChange(secret *v1.Secret) {
+	configuration, err := UnmarshalFrom(secret)
+	if err != nil {
+		klog.Errorf("failed to unmarshal secret data: %s", err)
+		return
+	}
+
+	if factory, ok := searchProviderFactories[configuration.Type]; ok {
+		if provider, err := factory.Create(configuration.ProviderOptions); err != nil {
+			klog.Error(fmt.Sprintf("failed to create image search provider %s: %s", configuration.Name, err))
+		} else {
+			c.imageSearchProviders.Store(configuration.Name, provider)
+			c.imageSearchProviderConfig.Store(configuration.Name, configuration)
+			klog.V(4).Infof("create image search provider %s successfully", configuration.Name)
+		}
+	} else {
+		klog.Errorf("image search provider %s with type %s is not supported", configuration.Name, configuration.Type)
+		return
+	}
+
+}
+
+func (c *Controller) GetProvider(providerName string) (SearchProvider, bool) {
+	if obj, ok := c.imageSearchProviders.Load(providerName); ok {
+		if provider, ok := obj.(SearchProvider); ok {
+			return provider, true
+		}
+	}
+	return nil, false
+}