Golang unversioned.ResourceQuotaInterface類代碼示例

// WaitForResourceQuotaSync watches given resource quota until its usage is updated to desired level or a
// timeout occurs. If successful, used quota values will be returned for expected resources. Otherwise an
// ErrWaitTimeout will be returned. If expectedIsUpperLimit is true, given expected usage must compare greater
// or equal to quota's usage, which is useful for expected usage increment. Otherwise expected usage must
// compare lower or equal to quota's usage, which is useful for expected usage decrement.
func WaitForResourceQuotaSync(
	client kclient.ResourceQuotaInterface,
	name string,
	expectedUsage kapi.ResourceList,
	expectedIsUpperLimit bool,
	timeout time.Duration,
) (kapi.ResourceList, error) {

	startTime := time.Now()
	endTime := startTime.Add(timeout)

	expectedResourceNames := quota.ResourceNames(expectedUsage)

	list, err := client.List(kapi.ListOptions{FieldSelector: fields.Set{"metadata.name": name}.AsSelector()})
	if err != nil {
		return nil, err
	}

	for i := range list.Items {
		used := quota.Mask(list.Items[i].Status.Used, expectedResourceNames)
		if isUsageSynced(used, expectedUsage, expectedIsUpperLimit) {
			return used, nil
		}
	}

	rv := list.ResourceVersion
	w, err := client.Watch(kapi.ListOptions{FieldSelector: fields.Set{"metadata.name": name}.AsSelector(), ResourceVersion: rv})
	if err != nil {
		return nil, err
	}
	defer w.Stop()

	for time.Now().Before(endTime) {
		select {
		case val, ok := <-w.ResultChan():
			if !ok {
				// reget and re-watch
				continue
			}
			if rq, ok := val.Object.(*kapi.ResourceQuota); ok {
				used := quota.Mask(rq.Status.Used, expectedResourceNames)
				if isUsageSynced(used, expectedUsage, expectedIsUpperLimit) {
					return used, nil
				}
			}
		case <-time.After(endTime.Sub(time.Now())):
			return nil, wait.ErrWaitTimeout
		}
	}
	return nil, wait.ErrWaitTimeout
}

// bumpQuota modifies hard spec of quota object with the given value. It returns modified hard spec.
func bumpQuota(t *testing.T, rqs kclient.ResourceQuotaInterface, quotaName string, resourceName kapi.ResourceName, value int64) kapi.ResourceList {
	t.Logf("bump the quota %s to %s=%d", quotaName, resourceName, value)
	rq, err := rqs.Get(quotaName)
	if err != nil {
		t.Fatal(err)
	}
	rq.Spec.Hard[resourceName] = *resource.NewQuantity(value, resource.DecimalSI)
	_, err = rqs.Update(rq)
	if err != nil {
		t.Fatal(err)
	}
	err = testutil.WaitForResourceQuotaLimitSync(
		rqs,
		quotaName,
		rq.Spec.Hard,
		time.Second*10)
	if err != nil {
		t.Fatal(err)
	}
	return rq.Spec.Hard
}

// createResourceQuota creates a resource quota with given hard limits in a current namespace and waits until
// a first usage refresh
func createResourceQuota(t *testing.T, rqClient kclient.ResourceQuotaInterface, quotaName string, hard kapi.ResourceList) *kapi.ResourceQuota {
	rq := &kapi.ResourceQuota{
		ObjectMeta: kapi.ObjectMeta{
			Name: quotaName,
		},
		Spec: kapi.ResourceQuotaSpec{
			Hard: hard,
		},
	}

	t.Logf("creating resource quota %q with a limit %v", quotaName, hard)
	rq, err := rqClient.Create(rq)
	if err != nil {
		t.Fatal(err)
	}
	err = testutil.WaitForResourceQuotaLimitSync(rqClient, quotaName, hard, time.Second*30)
	if err != nil {
		t.Fatal(err)
	}
	return rq
}