Files
fission-src/pkg/kubewatcher/watchSync.go
T
Shubham BansalandGitHub f37e9e6f89 Use informer for kube watcher handling with multiple namespace support (#2594)
* changes to add informer for kube watcher
* code refactor and fix cli issue for deleting watch
2022-11-02 19:10:06 +05:30

71 lines
2.1 KiB
Go

/*
Copyright 2016 The Fission 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 kubewatcher
import (
"context"
"time"
"go.uber.org/zap"
k8sCache "k8s.io/client-go/tools/cache"
fv1 "github.com/fission/fission/pkg/apis/core/v1"
"github.com/fission/fission/pkg/generated/clientset/versioned"
"github.com/fission/fission/pkg/utils"
)
type (
WatchSync struct {
logger *zap.Logger
client versioned.Interface
kubeWatcher *KubeWatcher
kubeWatcherInformer map[string]k8sCache.SharedIndexInformer
}
)
func MakeWatchSync(ctx context.Context, logger *zap.Logger, client versioned.Interface, kubeWatcher *KubeWatcher) *WatchSync {
ws := &WatchSync{
logger: logger.Named("watch_sync"),
client: client,
kubeWatcher: kubeWatcher,
}
ws.kubeWatcherInformer = utils.GetInformersForNamespaces(client, time.Minute*30, fv1.KubernetesWatchResource)
ws.KubeWatcherEventHandlers(ctx)
return ws
}
func (ws *WatchSync) Run(ctx context.Context) {
for _, informer := range ws.kubeWatcherInformer {
go informer.Run(ctx.Done())
}
}
func (ws *WatchSync) KubeWatcherEventHandlers(ctx context.Context) {
for _, informer := range ws.kubeWatcherInformer {
informer.AddEventHandler(k8sCache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
objKubeWatcher := obj.(*fv1.KubernetesWatchTrigger)
ws.kubeWatcher.addWatch(ctx, objKubeWatcher) //nolint: errCheck
},
DeleteFunc: func(obj interface{}) {
objKubeWatcher := obj.(*fv1.KubernetesWatchTrigger)
ws.kubeWatcher.removeWatch(objKubeWatcher) //nolint: errCheck
},
})
}
}