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deployment_informer.go
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/
deployment_informer.go
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package main
import (
"github.com/forbearing/k8s/deployment"
"github.com/forbearing/k8s/util/signals"
log "github.com/sirupsen/logrus"
appsv1 "k8s.io/api/apps/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type updateObj struct {
oldObj interface{}
newObj interface{}
}
func Deployment_Informer() {
handler, err := deployment.New(ctx, kubeconfig, namespace)
if err != nil {
panic(err)
}
defer cleanup(handler)
addQueue := make(chan interface{}, 100)
updateQueue := make(chan updateObj, 100)
deleteQueue := make(chan interface{}, 100)
addFunc := func(obj interface{}) { addQueue <- obj }
updateFunc := func(oldObj interface{}, newObj interface{}) {
uo := updateObj{}
uo.oldObj = oldObj
uo.newObj = newObj
updateQueue <- uo
}
deleteFunc := func(obj interface{}) { deleteQueue <- obj }
stopCh := signals.NewSignalChannel()
go func() {
handler.RunInformer(stopCh, addFunc, updateFunc, deleteFunc)
}()
for {
select {
case obj := <-addQueue:
myObj := obj.(metav1.Object)
log.Println("Add: ", myObj.GetName())
case ou := <-updateQueue:
// Periodic resync will send update events for all known deployments.
// Two different versions of the same deployment will always have
// different ResourceVersion.
//oldObj := ou.oldObj.(metav1.Object)
//newObj := ou.newObj.(metav1.Object)
//if !reflect.DeepEqual(oldObj, newObj) {
// log.Println("Update:", newObj.GetName())
//}
oldObj := ou.oldObj.(*appsv1.Deployment)
curObj := ou.newObj.(*appsv1.Deployment)
if oldObj.ResourceVersion == curObj.ResourceVersion {
return
}
log.Println("Update:", curObj.Name)
case obj := <-deleteQueue:
myObj := obj.(metav1.Object)
log.Println("Delete", myObj.GetName())
case <-stopCh:
log.Println("Informer stopped.")
return
}
}
}