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fix: factorise confimap informer code (#7667)

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Signed-off-by: Charles-Edouard Brétéché <charles.edouard@nirmata.com>
Co-authored-by: shuting <shuting@nirmata.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
This commit is contained in:
Charles-Edouard Brétéché 2023-06-28 06:43:16 +02:00 • committed by GitHub
parent b98c0775f2
commit 88cfa4396a
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 51 additions and 19 deletions
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24
pkg/controllers/generic/configmap/controller.go
View file

@ -7,13 +7,11 @@ import (
"github.com/go-logr/logr"
"github.com/kyverno/kyverno/pkg/controllers"
"github.com/kyverno/kyverno/pkg/informers"
"github.com/kyverno/kyverno/pkg/logging"
controllerutils "github.com/kyverno/kyverno/pkg/utils/controller"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
corev1informers "k8s.io/client-go/informers/core/v1"
"k8s.io/client-go/kubernetes"
corev1listers "k8s.io/client-go/listers/core/v1"
"k8s.io/client-go/tools/cache"
@ -21,8 +19,6 @@ import (
)
const (
// Workers is the number of workers for this controller
Workers = 1
maxRetries = 10
)
@ -57,27 +53,17 @@ func NewController(
name string,
callback callback,
) Controller {
indexers := cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}
options := func(lo *metav1.ListOptions) {
lo.FieldSelector = fields.OneTermEqualSelector(metav1.ObjectNameField, name).String()
}
informer := corev1informers.NewFilteredConfigMapInformer(
client,
namespace,
resyncPeriod,
indexers,
options,
)
informer := informers.NewConfigMapInformer(client, namespace, name, resyncPeriod)
c := controller{
informer: informer,
lister: corev1listers.NewConfigMapLister(informer.GetIndexer()).ConfigMaps(namespace),
informer: informer.Informer(),
lister: informer.Lister().ConfigMaps(namespace),
controllerName: controllerName,
queue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), controllerName),
logger: logging.ControllerLogger(controllerName),
name: name,
callback: callback,
}
controllerutils.AddDefaultEventHandlers(c.logger, informer, c.queue)
controllerutils.AddDefaultEventHandlers(c.logger, informer.Informer(), c.queue)
return &c
}

46
pkg/informers/configmaps.go Normal file
View file

@ -0,0 +1,46 @@
package informers
import (
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
corev1informers "k8s.io/client-go/informers/core/v1"
"k8s.io/client-go/kubernetes"
corev1listers "k8s.io/client-go/listers/core/v1"
"k8s.io/client-go/tools/cache"
)
type configMapInformer struct {
informer cache.SharedIndexInformer
lister corev1listers.ConfigMapLister
}
func NewConfigMapInformer(
client kubernetes.Interface,
namespace string,
name string,
resyncPeriod time.Duration,
) corev1informers.ConfigMapInformer {
indexers := cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}
options := func(lo *metav1.ListOptions) {
lo.FieldSelector = fields.OneTermEqualSelector(metav1.ObjectNameField, name).String()
}
informer := corev1informers.NewFilteredConfigMapInformer(
client,
namespace,
resyncPeriod,
indexers,
options,
)
lister := corev1listers.NewConfigMapLister(informer.GetIndexer())
return &configMapInformer{informer, lister}
}
func (i *configMapInformer) Informer() cache.SharedIndexInformer {
return i.informer
}
func (i *configMapInformer) Lister() corev1listers.ConfigMapLister {
return i.lister
}