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imagestream_evaluator.go
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/
imagestream_evaluator.go
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package image
import (
"k8s.io/kubernetes/pkg/admission"
kapi "k8s.io/kubernetes/pkg/api"
kquota "k8s.io/kubernetes/pkg/quota"
"k8s.io/kubernetes/pkg/quota/generic"
"k8s.io/kubernetes/pkg/runtime"
oscache "github.com/openshift/origin/pkg/client/cache"
imageapi "github.com/openshift/origin/pkg/image/api"
)
const imageStreamEvaluatorName = "Evaluator.ImageStream"
// NewImageStreamEvaluator computes resource usage of ImageStreams. Instantiating this is necessary for
// resource quota admission controller to properly work on image stream related objects.
func NewImageStreamEvaluator(store *oscache.StoreToImageStreamLister) kquota.Evaluator {
allResources := []kapi.ResourceName{
imageapi.ResourceImageStreams,
}
return &generic.GenericEvaluator{
Name: imageStreamEvaluatorName,
InternalGroupKind: imageapi.LegacyKind("ImageStream"),
InternalOperationResources: map[admission.Operation][]kapi.ResourceName{
admission.Create: allResources,
},
MatchedResourceNames: allResources,
MatchesScopeFunc: generic.MatchesNoScopeFunc,
ConstraintsFunc: generic.ObjectCountConstraintsFunc(imageapi.ResourceImageStreams),
UsageFunc: generic.ObjectCountUsageFunc(imageapi.ResourceImageStreams),
ListFuncByNamespace: func(namespace string, options kapi.ListOptions) ([]runtime.Object, error) {
list, err := store.ImageStreams(namespace).List(options.LabelSelector)
if err != nil {
return nil, err
}
results := make([]runtime.Object, 0, len(list))
for _, is := range list {
results = append(results, is)
}
return results, nil
},
}
}