mapping data to etcd

pkg/models/controllers/storageclasses.go

@@ -0,0 +1,141 @@
+/*
+Copyright 2018 The KubeSphere 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 controllers
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/api/storage/v1beta1"
+	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/watch"
+
+	"kubesphere.io/kubesphere/pkg/client"
+)
+
+func (ctl *StorageClassCtl) generateObject(item v1beta1.StorageClass) *StorageClass {
+
+	name := item.Name
+	createTime := item.CreationTimestamp.Time
+	isDefault := false
+	if item.Annotations["storageclass.beta.kubernetes.io/is-default-class"] == "true" {
+		isDefault = true
+	}
+
+	if createTime.IsZero() {
+		createTime = time.Now()
+	}
+
+	annotation, _ := json.Marshal(item.Annotations)
+	object := &StorageClass{Name: name, CreateTime: createTime, IsDefault: isDefault, AnnotationStr: string(annotation)}
+
+	return object
+}
+
+func (ctl *StorageClassCtl) listAndWatch() {
+	defer func() {
+		defer close(ctl.aliveChan)
+		if err := recover(); err != nil {
+			glog.Error(err)
+			return
+		}
+	}()
+
+	db := ctl.DB
+
+	if db.HasTable(&StorageClass{}) {
+		db.DropTable(&StorageClass{})
+	}
+
+	db = db.CreateTable(&StorageClass{})
+
+	k8sClient := client.NewK8sClient()
+	list, err := k8sClient.StorageV1beta1().StorageClasses().List(meta_v1.ListOptions{})
+	if err != nil {
+		glog.Error(err)
+		return
+	}
+
+	for _, item := range list.Items {
+		obj := ctl.generateObject(item)
+		db.Create(obj)
+	}
+
+	watcher, err := k8sClient.StorageV1beta1().StorageClasses().Watch(meta_v1.ListOptions{})
+	if err != nil {
+		glog.Error(err)
+		return
+	}
+
+	for {
+		select {
+		case <-ctl.stopChan:
+			return
+		case event := <-watcher.ResultChan():
+			var sc StorageClass
+			if event.Object == nil {
+				break
+			}
+			object := event.Object.(*v1beta1.StorageClass)
+			if event.Type == watch.Deleted {
+				db.Where("name=?", object.Name).Find(&sc)
+				db.Delete(sc)
+				break
+			}
+			obj := ctl.generateObject(*object)
+			db.Save(obj)
+		}
+	}
+}
+
+func (ctl *StorageClassCtl) CountWithConditions(conditions string) int {
+	var object StorageClass
+
+	return countWithConditions(ctl.DB, conditions, &object)
+}
+
+func (ctl *StorageClassCtl) ListWithConditions(conditions string, paging *Paging) (int, interface{}, error) {
+	var list []StorageClass
+	var object StorageClass
+	var total int
+
+	order := "createTime desc"
+
+	listWithConditions(ctl.DB, &total, &object, &list, conditions, paging, order)
+
+	for index, storageClass := range list {
+		name := storageClass.Name
+		annotation := make(map[string]string)
+		json.Unmarshal([]byte(storageClass.AnnotationStr), &annotation)
+		list[index].Annotation = annotation
+		list[index].AnnotationStr = ""
+		pvcCtl := PvcCtl{CommonAttribute{K8sClient: ctl.K8sClient, DB: ctl.DB}}
+
+		list[index].Count = pvcCtl.CountWithConditions(fmt.Sprintf("storage_class=\"%s\"", name))
+	}
+
+	return total, list, nil
+}
+
+func (ctl *StorageClassCtl) Count(name string) int {
+	var count int
+	db := ctl.DB
+	db.Model(&StorageClass{}).Count(&count)
+	return count
+}