Files
cloudpods/pkg/cloudcommon/syncman/watcher/watcher.go

93 lines
2.8 KiB
Go

// Copyright 2019 Yunion
//
// 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 watcher
import (
"context"
"yunion.io/x/jsonutils"
"yunion.io/x/log"
"yunion.io/x/pkg/errors"
"yunion.io/x/onecloud/pkg/apis"
"yunion.io/x/onecloud/pkg/cloudcommon/consts"
"yunion.io/x/onecloud/pkg/cloudcommon/syncman"
"yunion.io/x/onecloud/pkg/mcclient"
"yunion.io/x/onecloud/pkg/mcclient/auth"
"yunion.io/x/onecloud/pkg/mcclient/informer"
)
type SInformerSyncManager struct {
syncman.SSyncManager
resourceManager informer.IResourceManager
done bool
}
func (manager *SInformerSyncManager) OnAdd(obj *jsonutils.JSONDict) {
log.Infof("[CREATED]: \n%s", obj.String())
if manager.NeedSync(obj) {
manager.SyncOnce()
}
}
func (manager *SInformerSyncManager) OnUpdate(oldObj, newObj *jsonutils.JSONDict) {
log.Infof("[UPDATED]: \n[NEW]: %s\n[OLD]: %s", newObj.String(), oldObj.String())
if manager.NeedSync(oldObj) || manager.NeedSync(newObj) {
manager.SyncOnce()
}
}
func (manager *SInformerSyncManager) OnDelete(obj *jsonutils.JSONDict) {
log.Infof("[DELETED]: \n%s", obj.String())
if manager.NeedSync(obj) {
manager.SyncOnce()
}
}
func (manager *SInformerSyncManager) OnServiceCatalogChange(catalog mcclient.IServiceCatalog) {
if manager.done {
return
}
url, _ := catalog.GetServiceURL(apis.SERVICE_TYPE_ETCD, consts.GetRegion(), "", "internal")
if len(url) == 0 {
log.Debugf("[%s] OnServiceCatalogChange: no etcd url found, retry", manager.Name())
return
}
err := manager.startWatcher()
if err != nil {
log.Errorf("[%s] watching resource errror %s", manager.Name(), err)
return
}
manager.done = true
}
func (manager *SInformerSyncManager) StartWatching(resMan informer.IResourceManager) {
manager.resourceManager = resMan
auth.RegisterCatalogListener(manager)
}
func (manager *SInformerSyncManager) startWatcher() error {
log.Infof("[%s] Start resource informer watcher for %s", manager.Name(), manager.resourceManager.GetKeyword())
ctx := context.Background()
s := auth.GetAdminSession(ctx, consts.GetRegion(), "v1")
informer.NewWatchManagerBySessionBg(s, func(watchMan *informer.SWatchManager) error {
if err := watchMan.For(manager.resourceManager).AddEventHandler(ctx, manager); err != nil {
return errors.Wrapf(err, "watch resource %s", manager.resourceManager.GetKeyword())
}
return nil
})
return nil
}