add notification apis (#2066)

add alerting apis

add generic proxy

pkg/kapis/alerting/v1/register.go

@@ -0,0 +1,18 @@
+package v1
+
+import (
+	"github.com/emicklei/go-restful"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"kubesphere.io/kubesphere/pkg/kapis/generic"
+)
+
+var GroupVersion = schema.GroupVersion{Group: "alerting.kubesphere.io", Version: "v1"}
+
+func AddToContainer(container *restful.Container, endpoint string) error {
+	proxy, err := generic.NewGenericProxy(endpoint, GroupVersion.Group, GroupVersion.Version)
+	if err != nil {
+		return nil
+	}
+
+	return proxy.AddToContainer(container)
+}