/
imagestreamtag_evaluator.go
113 lines (94 loc) · 4.25 KB
/
imagestreamtag_evaluator.go
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package image
import (
"fmt"
corev1 "k8s.io/api/core/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
kadmission "k8s.io/apiserver/pkg/admission"
kquota "k8s.io/kubernetes/pkg/quota/v1"
"k8s.io/kubernetes/pkg/quota/v1/generic"
"github.com/openshift/api/image"
imagev1 "github.com/openshift/api/image/v1"
imagev1typedclient "github.com/openshift/client-go/image/clientset/versioned/typed/image/v1"
imagev1lister "github.com/openshift/client-go/image/listers/image/v1"
imageapi "github.com/openshift/origin/pkg/image/apis/image"
imagev1conversions "github.com/openshift/origin/pkg/image/apis/image/v1"
)
var imageStreamTagResources = []corev1.ResourceName{
imagev1.ResourceImageStreams,
}
type imageStreamTagEvaluator struct {
store imagev1lister.ImageStreamLister
istGetter imagev1typedclient.ImageStreamTagsGetter
}
// NewImageStreamTagEvaluator computes resource usage of ImageStreamsTags. Its sole purpose is to handle
// UPDATE admission operations on imageStreamTags resource.
func NewImageStreamTagEvaluator(store imagev1lister.ImageStreamLister, istGetter imagev1typedclient.ImageStreamTagsGetter) kquota.Evaluator {
return &imageStreamTagEvaluator{
store: store,
istGetter: istGetter,
}
}
// Constraints checks that given object is an image stream tag
func (i *imageStreamTagEvaluator) Constraints(required []corev1.ResourceName, object runtime.Object) error {
_, okInt := object.(*imageapi.ImageStreamTag)
_, okExt := object.(*imagev1.ImageStreamTag)
if !okInt && !okExt {
return fmt.Errorf("unexpected input object %v", object)
}
return nil
}
func (i *imageStreamTagEvaluator) GroupResource() schema.GroupResource {
return image.Resource("imagestreamtags")
}
func (i *imageStreamTagEvaluator) Handles(a kadmission.Attributes) bool {
operation := a.GetOperation()
return operation == kadmission.Create || operation == kadmission.Update
}
func (i *imageStreamTagEvaluator) Matches(resourceQuota *corev1.ResourceQuota, item runtime.Object) (bool, error) {
matchesScopeFunc := func(corev1.ScopedResourceSelectorRequirement, runtime.Object) (bool, error) { return true, nil }
return generic.Matches(resourceQuota, item, i.MatchingResources, matchesScopeFunc)
}
func (p *imageStreamTagEvaluator) MatchingScopes(item runtime.Object, scopes []corev1.ScopedResourceSelectorRequirement) ([]corev1.ScopedResourceSelectorRequirement, error) {
return []corev1.ScopedResourceSelectorRequirement{}, nil
}
func (p *imageStreamTagEvaluator) UncoveredQuotaScopes(limitedScopes []corev1.ScopedResourceSelectorRequirement, matchedQuotaScopes []corev1.ScopedResourceSelectorRequirement) ([]corev1.ScopedResourceSelectorRequirement, error) {
return []corev1.ScopedResourceSelectorRequirement{}, nil
}
func (i *imageStreamTagEvaluator) MatchingResources(input []corev1.ResourceName) []corev1.ResourceName {
return kquota.Intersection(input, imageStreamTagResources)
}
func (i *imageStreamTagEvaluator) Usage(item runtime.Object) (corev1.ResourceList, error) {
if istInternal, ok := item.(*imageapi.ImageStreamTag); ok {
out := &imagev1.ImageStreamTag{}
if err := imagev1conversions.Convert_image_ImageStreamTag_To_v1_ImageStreamTag(istInternal, out, nil); err != nil {
return corev1.ResourceList{}, fmt.Errorf("error converting ImageStreamImport: %v", err)
}
item = out
}
ist, ok := item.(*imagev1.ImageStreamTag)
if !ok {
return corev1.ResourceList{}, nil
}
res := map[corev1.ResourceName]resource.Quantity{
imagev1.ResourceImageStreams: *resource.NewQuantity(0, resource.BinarySI),
}
isName, _, err := imageapi.ParseImageStreamTagName(ist.Name)
if err != nil {
return corev1.ResourceList{}, err
}
is, err := i.store.ImageStreams(ist.Namespace).Get(isName)
if err != nil && !kerrors.IsNotFound(err) {
utilruntime.HandleError(fmt.Errorf("failed to get image stream %s/%s: %v", ist.Namespace, isName, err))
}
if is == nil || kerrors.IsNotFound(err) {
res[imagev1.ResourceImageStreams] = *resource.NewQuantity(1, resource.BinarySI)
}
return res, nil
}
func (i *imageStreamTagEvaluator) UsageStats(options kquota.UsageStatsOptions) (kquota.UsageStats, error) {
return kquota.UsageStats{}, nil
}