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[kubernetes] ignore empty endpoint changes

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This commit is contained in:
Henning 2021-04-29 16:20:03 +02:00 • committed by GitHub
parent 0624cefc10
commit ab71dad51a
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5 changed files with 707 additions and 54 deletions
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29
pkg/provider/kubernetes/ingress/client.go
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@ -11,6 +11,7 @@ import (
"github.com/hashicorp/go-version"
"github.com/traefik/traefik/v2/pkg/log"
"github.com/traefik/traefik/v2/pkg/provider/kubernetes/k8s"
traefikversion "github.com/traefik/traefik/v2/pkg/version"
corev1 "k8s.io/api/core/v1"
networkingv1 "k8s.io/api/networking/v1"
@ -34,22 +35,6 @@ type marshaler interface {
Marshal() ([]byte, error)
}
type resourceEventHandler struct {
ev chan<- interface{}
}
func (reh *resourceEventHandler) OnAdd(obj interface{}) {
eventHandlerFunc(reh.ev, obj)
}
func (reh *resourceEventHandler) OnUpdate(oldObj, newObj interface{}) {
eventHandlerFunc(reh.ev, newObj)
}
func (reh *resourceEventHandler) OnDelete(obj interface{}) {
eventHandlerFunc(reh.ev, obj)
}
// Client is a client for the Provider master.
// WatchAll starts the watch of the Provider resources and updates the stores.
// The stores can then be accessed via the Get* functions.
@ -151,7 +136,7 @@ func newClientImpl(clientset kubernetes.Interface) *clientWrapper {
// WatchAll starts namespace-specific controllers for all relevant kinds.
func (c *clientWrapper) WatchAll(namespaces []string, stopCh <-chan struct{}) (<-chan interface{}, error) {
eventCh := make(chan interface{}, 1)
eventHandler := &resourceEventHandler{eventCh}
eventHandler := &k8s.ResourceEventHandler{Ev: eventCh}
if len(namespaces) == 0 {
namespaces = []string{metav1.NamespaceAll}
@ -508,16 +493,6 @@ func (c *clientWrapper) GetServerVersion() (*version.Version, error) {
return version.NewVersion(serverVersion.GitVersion)
}
// eventHandlerFunc will pass the obj on to the events channel or drop it.
// This is so passing the events along won't block in the case of high volume.
// The events are only used for signaling anyway so dropping a few is ok.
func eventHandlerFunc(events chan<- interface{}, obj interface{}) {
select {
case events <- obj:
default:
}
}
// translateNotFoundError will translate a "not found" error to a boolean return
// value which indicates if the resource exists and a nil error.
func translateNotFoundError(err error) (bool, error) {