/
limit_verifier.go
35 lines (29 loc) · 1.27 KB
/
limit_verifier.go
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package etcd
import (
"fmt"
"k8s.io/klog"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
corev1informers "k8s.io/client-go/informers/core/v1"
imageadmission "github.com/openshift/origin/pkg/image/apiserver/admission/limitrange"
)
func ImageLimitVerifier(limitRangeInformer corev1informers.LimitRangeInformer) imageadmission.LimitVerifier {
// this call just forces the informer to be registered
limitRangeInformer.Informer()
return imageadmission.NewLimitVerifier(imageadmission.LimitRangesForNamespaceFunc(func(ns string) ([]*corev1.LimitRange, error) {
list, err := limitRangeInformer.Lister().LimitRanges(ns).List(labels.Everything())
if err != nil {
return nil, err
}
// the verifier must return an error
if len(list) == 0 && len(limitRangeInformer.Informer().LastSyncResourceVersion()) == 0 {
klog.V(4).Infof("LimitVerifier still waiting for ranges to load: %#v", limitRangeInformer.Informer())
forbiddenErr := apierrors.NewForbidden(schema.GroupResource{Resource: "limitranges"}, "", fmt.Errorf("the server is still loading limit information"))
forbiddenErr.ErrStatus.Details.RetryAfterSeconds = 1
return nil, forbiddenErr
}
return list, nil
}))
}