Golang GroupVersionResource.GroupResource方法代碼示例

// ForResource gives generic access to a shared informer of the matching type
// TODO extend this to unknown resources with a client pool
func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource) (GenericInformer, error) {
	switch resource {
	// Group=Apiregistration, Version=InternalVersion
	case apiregistration.SchemeGroupVersion.WithResource("apiservices"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Apiregistration().InternalVersion().APIServices().Informer()}, nil

		// Group=Apiregistration, Version=V1alpha1
	case v1alpha1.SchemeGroupVersion.WithResource("apiservices"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Apiregistration().V1alpha1().APIServices().Informer()}, nil

	}

	return nil, fmt.Errorf("no informer found for %v", resource)
}

// estimateGrracefulTermination will estimate the graceful termination required for the specific entity in the namespace
func estimateGracefulTermination(kubeClient clientset.Interface, groupVersionResource schema.GroupVersionResource, ns string, namespaceDeletedAt metav1.Time) (int64, error) {
	groupResource := groupVersionResource.GroupResource()
	glog.V(5).Infof("namespace controller - estimateGracefulTermination - group %s, resource: %s", groupResource.Group, groupResource.Resource)
	estimate := int64(0)
	var err error
	switch groupResource {
	case schema.GroupResource{Group: "", Resource: "pods"}:
		estimate, err = estimateGracefulTerminationForPods(kubeClient, ns)
	}
	if err != nil {
		return estimate, err
	}
	// determine if the estimate is greater than the deletion timestamp
	duration := time.Since(namespaceDeletedAt.Time)
	allowedEstimate := time.Duration(estimate) * time.Second
	if duration >= allowedEstimate {
		estimate = int64(0)
	}
	return estimate, nil
}

// patchResource divides PatchResource for easier unit testing
func patchResource(
	ctx api.Context,
	admit updateAdmissionFunc,
	timeout time.Duration,
	versionedObj runtime.Object,
	patcher rest.Patcher,
	name string,
	patchType api.PatchType,
	patchJS []byte,
	namer ScopeNamer,
	copier runtime.ObjectCopier,
	resource schema.GroupVersionResource,
	codec runtime.Codec,
) (runtime.Object, error) {

	namespace := api.NamespaceValue(ctx)

	var (
		originalObjJS        []byte
		originalPatchedObjJS []byte
		lastConflictErr      error
	)

	// applyPatch is called every time GuaranteedUpdate asks for the updated object,
	// and is given the currently persisted object as input.
	applyPatch := func(_ api.Context, _, currentObject runtime.Object) (runtime.Object, error) {
		// Make sure we actually have a persisted currentObject
		if hasUID, err := hasUID(currentObject); err != nil {
			return nil, err
		} else if !hasUID {
			return nil, errors.NewNotFound(resource.GroupResource(), name)
		}

		switch {
		case len(originalObjJS) == 0 || len(originalPatchedObjJS) == 0:
			// first time through,
			// 1. apply the patch
			// 2. save the originalJS and patchedJS to detect whether there were conflicting changes on retries
			if js, err := runtime.Encode(codec, currentObject); err != nil {
				return nil, err
			} else {
				originalObjJS = js
			}

			if js, err := getPatchedJS(patchType, originalObjJS, patchJS, versionedObj); err != nil {
				return nil, err
			} else {
				originalPatchedObjJS = js
			}

			objToUpdate := patcher.New()
			if err := runtime.DecodeInto(codec, originalPatchedObjJS, objToUpdate); err != nil {
				return nil, err
			}
			if err := checkName(objToUpdate, name, namespace, namer); err != nil {
				return nil, err
			}
			return objToUpdate, nil

		default:
			// on a conflict,
			// 1. build a strategic merge patch from originalJS and the patchedJS.  Different patch types can
			//    be specified, but a strategic merge patch should be expressive enough handle them.  Build the
			//    patch with this type to handle those cases.
			// 2. build a strategic merge patch from originalJS and the currentJS
			// 3. ensure no conflicts between the two patches
			// 4. apply the #1 patch to the currentJS object
			currentObjectJS, err := runtime.Encode(codec, currentObject)
			if err != nil {
				return nil, err
			}
			currentPatch, err := strategicpatch.CreateStrategicMergePatch(originalObjJS, currentObjectJS, versionedObj)
			if err != nil {
				return nil, err
			}
			originalPatch, err := strategicpatch.CreateStrategicMergePatch(originalObjJS, originalPatchedObjJS, versionedObj)
			if err != nil {
				return nil, err
			}

			diff1 := make(map[string]interface{})
			if err := json.Unmarshal(originalPatch, &diff1); err != nil {
				return nil, err
			}
			diff2 := make(map[string]interface{})
			if err := json.Unmarshal(currentPatch, &diff2); err != nil {
				return nil, err
			}
			hasConflicts, err := strategicpatch.HasConflicts(diff1, diff2)
			if err != nil {
				return nil, err
			}
			if hasConflicts {
				glog.V(4).Infof("patchResource failed for resource %s, because there is a meaningful conflict.\n diff1=%v\n, diff2=%v\n", name, diff1, diff2)
				// Return the last conflict error we got if we have one
				if lastConflictErr != nil {
					return nil, lastConflictErr
				}
				// Otherwise manufacture one of our own
//.........這裏部分代碼省略.........

// ForResource gives generic access to a shared informer of the matching type
// TODO extend this to unknown resources with a client pool
func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource) (GenericInformer, error) {
	switch resource {
	// Group=Apps, Version=InternalVersion
	case apps.SchemeGroupVersion.WithResource("statefulsets"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Apps().InternalVersion().StatefulSets().Informer()}, nil

		// Group=Apps, Version=V1beta1
	case v1beta1.SchemeGroupVersion.WithResource("statefulsets"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Apps().V1beta1().StatefulSets().Informer()}, nil

		// Group=Autoscaling, Version=InternalVersion
	case autoscaling.SchemeGroupVersion.WithResource("horizontalpodautoscalers"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Autoscaling().InternalVersion().HorizontalPodAutoscalers().Informer()}, nil

		// Group=Autoscaling, Version=V1
	case v1.SchemeGroupVersion.WithResource("horizontalpodautoscalers"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Autoscaling().V1().HorizontalPodAutoscalers().Informer()}, nil

		// Group=Batch, Version=InternalVersion
	case batch.SchemeGroupVersion.WithResource("cronjobs"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Batch().InternalVersion().CronJobs().Informer()}, nil
	case batch.SchemeGroupVersion.WithResource("jobs"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Batch().InternalVersion().Jobs().Informer()}, nil

		// Group=Batch, Version=V1
	case batch_v1.SchemeGroupVersion.WithResource("jobs"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Batch().V1().Jobs().Informer()}, nil

		// Group=Batch, Version=V2alpha1
	case v2alpha1.SchemeGroupVersion.WithResource("cronjobs"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Batch().V2alpha1().CronJobs().Informer()}, nil
	case v2alpha1.SchemeGroupVersion.WithResource("jobs"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Batch().V2alpha1().Jobs().Informer()}, nil

		// Group=Certificates, Version=InternalVersion
	case certificates.SchemeGroupVersion.WithResource("certificatesigningrequests"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Certificates().InternalVersion().CertificateSigningRequests().Informer()}, nil

		// Group=Certificates, Version=V1alpha1
	case v1alpha1.SchemeGroupVersion.WithResource("certificatesigningrequests"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Certificates().V1alpha1().CertificateSigningRequests().Informer()}, nil

		// Group=Core, Version=InternalVersion
	case api.SchemeGroupVersion.WithResource("componentstatuses"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().ComponentStatuses().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("configmaps"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().ConfigMaps().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("endpoints"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Endpoints().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("events"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Events().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("limitranges"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().LimitRanges().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("namespaces"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Namespaces().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("nodes"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Nodes().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("persistentvolumes"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().PersistentVolumes().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("persistentvolumeclaims"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().PersistentVolumeClaims().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("pods"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Pods().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("podtemplates"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().PodTemplates().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("replicationcontrollers"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().ReplicationControllers().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("resourcequotas"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().ResourceQuotas().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("secrets"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Secrets().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("services"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().Services().Informer()}, nil
	case api.SchemeGroupVersion.WithResource("serviceaccounts"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().InternalVersion().ServiceAccounts().Informer()}, nil

		// Group=Core, Version=V1
	case api_v1.SchemeGroupVersion.WithResource("componentstatuses"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().ComponentStatuses().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("configmaps"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().ConfigMaps().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("endpoints"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().Endpoints().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("events"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().Events().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("limitranges"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().LimitRanges().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("namespaces"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().Namespaces().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("nodes"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().Nodes().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("persistentvolumes"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().PersistentVolumes().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("persistentvolumeclaims"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().PersistentVolumeClaims().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("pods"):
		return &genericInformer{resource: resource.GroupResource(), informer: f.Core().V1().Pods().Informer()}, nil
	case api_v1.SchemeGroupVersion.WithResource("podtemplates"):
//.........這裏部分代碼省略.........