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storage capacity: CRUD conformance test
This is needed for GA APIs. This one is based on test/e2e/common/node/runtimeclass.go.
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/* | ||
Copyright 2022 The Kubernetes Authors. | ||
Licensed under the Apache License, Version 2.0 (the "License"); | ||
you may not use this file except in compliance with the License. | ||
You may obtain a copy of the License at | ||
http://www.apache.org/licenses/LICENSE-2.0 | ||
Unless required by applicable law or agreed to in writing, software | ||
distributed under the License is distributed on an "AS IS" BASIS, | ||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
See the License for the specific language governing permissions and | ||
limitations under the License. | ||
*/ | ||
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package storage | ||
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import ( | ||
"context" | ||
"time" | ||
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storagev1 "k8s.io/api/storage/v1" | ||
apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
types "k8s.io/apimachinery/pkg/types" | ||
"k8s.io/apimachinery/pkg/util/wait" | ||
"k8s.io/apimachinery/pkg/watch" | ||
"k8s.io/kubernetes/test/e2e/framework" | ||
"k8s.io/kubernetes/test/e2e/storage/utils" | ||
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"github.com/onsi/ginkgo" | ||
) | ||
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var _ = utils.SIGDescribe("CSIStorageCapacity", func() { | ||
f := framework.NewDefaultFramework("csistoragecapacity") | ||
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/* | ||
Release: v1.24 | ||
Testname: CSIStorageCapacity API | ||
Description: | ||
The storage.k8s.io API group MUST exist in the /apis discovery document. | ||
The storage.k8s.io/v1 API group/version MUST exist in the /apis/mode.k8s.io discovery document. | ||
The csistoragecapacities resource MUST exist in the /apis/storage.k8s.io/v1 discovery document. | ||
The csistoragecapacities resource must support create, get, list, watch, update, patch, delete, and deletecollection. | ||
TODO (pohly): promote to framework.ConformanceIt | ||
*/ | ||
ginkgo.It(" should support CSIStorageCapacities API operations", func() { | ||
// Setup | ||
cscVersion := "v1" | ||
cscClient := f.ClientSet.StorageV1().CSIStorageCapacities(f.Namespace.Name) | ||
cscClientNoNamespace := f.ClientSet.StorageV1().CSIStorageCapacities("") | ||
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// The fictional StorageClass for these objects. | ||
scName := "e2e.example.com" | ||
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// All CRUD operations in this test are limited to the objects with the label test=f.UniqueName | ||
newCSIStorageCapacity := func(nameSuffix string) *storagev1.CSIStorageCapacity { | ||
return &storagev1.CSIStorageCapacity{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: f.UniqueName + nameSuffix, | ||
Labels: map[string]string{ | ||
"test": f.UniqueName, | ||
}, | ||
}, | ||
StorageClassName: scName, | ||
} | ||
} | ||
csc := newCSIStorageCapacity("-csc1") | ||
csc2 := newCSIStorageCapacity("-csc2") | ||
csc3 := newCSIStorageCapacity("-csc3") | ||
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// Discovery | ||
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ginkgo.By("getting /apis") | ||
{ | ||
discoveryGroups, err := f.ClientSet.Discovery().ServerGroups() | ||
framework.ExpectNoError(err) | ||
found := false | ||
for _, group := range discoveryGroups.Groups { | ||
if group.Name == storagev1.GroupName { | ||
for _, version := range group.Versions { | ||
if version.Version == cscVersion { | ||
found = true | ||
break | ||
} | ||
} | ||
} | ||
} | ||
if !found { | ||
framework.Failf("expected CSIStorageCapacity API group/version, got %#v", discoveryGroups.Groups) | ||
} | ||
} | ||
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ginkgo.By("getting /apis/storage.k8s.io") | ||
{ | ||
group := &metav1.APIGroup{} | ||
err := f.ClientSet.Discovery().RESTClient().Get().AbsPath("/apis/storage.k8s.io").Do(context.TODO()).Into(group) | ||
framework.ExpectNoError(err) | ||
found := false | ||
for _, version := range group.Versions { | ||
if version.Version == cscVersion { | ||
found = true | ||
break | ||
} | ||
} | ||
if !found { | ||
framework.Failf("expected CSIStorageCapacity API version, got %#v", group.Versions) | ||
} | ||
} | ||
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ginkgo.By("getting /apis/storage.k8s.io/" + cscVersion) | ||
{ | ||
resources, err := f.ClientSet.Discovery().ServerResourcesForGroupVersion(storagev1.SchemeGroupVersion.String()) | ||
framework.ExpectNoError(err) | ||
found := false | ||
for _, resource := range resources.APIResources { | ||
switch resource.Name { | ||
case "csistoragecapacities": | ||
found = true | ||
} | ||
} | ||
if !found { | ||
framework.Failf("expected csistoragecapacities, got %#v", resources.APIResources) | ||
} | ||
} | ||
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// Main resource create/read/update/watch operations | ||
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ginkgo.By("creating") | ||
createdCSC, err := cscClient.Create(context.TODO(), csc, metav1.CreateOptions{}) | ||
framework.ExpectNoError(err) | ||
_, err = cscClient.Create(context.TODO(), csc, metav1.CreateOptions{}) | ||
if !apierrors.IsAlreadyExists(err) { | ||
framework.Failf("expected 409, got %#v", err) | ||
} | ||
_, err = cscClient.Create(context.TODO(), csc2, metav1.CreateOptions{}) | ||
framework.ExpectNoError(err) | ||
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ginkgo.By("watching") | ||
framework.Logf("starting watch") | ||
cscWatch, err := cscClient.Watch(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
cscWatchNoNamespace, err := cscClientNoNamespace.Watch(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
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// added for a watch | ||
_, err = cscClient.Create(context.TODO(), csc3, metav1.CreateOptions{}) | ||
framework.ExpectNoError(err) | ||
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ginkgo.By("getting") | ||
gottenCSC, err := cscClient.Get(context.TODO(), csc.Name, metav1.GetOptions{}) | ||
framework.ExpectNoError(err) | ||
framework.ExpectEqual(gottenCSC.UID, createdCSC.UID) | ||
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ginkgo.By("listing in namespace") | ||
cscs, err := cscClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
framework.ExpectEqual(len(cscs.Items), 3, "filtered list should have 3 items, got: %s", cscs) | ||
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ginkgo.By("listing across namespaces") | ||
cscs, err = cscClientNoNamespace.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
framework.ExpectEqual(len(cscs.Items), 3, "filtered list should have 3 items, got: %s", cscs) | ||
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ginkgo.By("patching") | ||
patchedCSC, err := cscClient.Patch(context.TODO(), createdCSC.Name, types.MergePatchType, []byte(`{"metadata":{"annotations":{"patched":"true"}}}`), metav1.PatchOptions{}) | ||
framework.ExpectNoError(err) | ||
framework.ExpectEqual(patchedCSC.Annotations["patched"], "true", "patched object should have the applied annotation") | ||
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ginkgo.By("updating") | ||
csrToUpdate := patchedCSC.DeepCopy() | ||
csrToUpdate.Annotations["updated"] = "true" | ||
updatedCSC, err := cscClient.Update(context.TODO(), csrToUpdate, metav1.UpdateOptions{}) | ||
framework.ExpectNoError(err) | ||
framework.ExpectEqual(updatedCSC.Annotations["updated"], "true", "updated object should have the applied annotation") | ||
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expectWatchResult := func(kind string, w watch.Interface) { | ||
framework.Logf("waiting for watch events with expected annotations %s", kind) | ||
for sawAdded, sawPatched, sawUpdated := false, false, false; !sawAdded && !sawPatched && !sawUpdated; { | ||
select { | ||
case evt, ok := <-w.ResultChan(): | ||
if !ok { | ||
framework.Failf("%s: watch channel should not close", kind) | ||
} | ||
if evt.Type == watch.Modified { | ||
watchedCSC, isCSC := evt.Object.(*storagev1.CSIStorageCapacity) | ||
if !isCSC { | ||
framework.Failf("%s: expected CSC, got %T", kind, evt.Object) | ||
} | ||
if watchedCSC.Annotations["patched"] == "true" { | ||
framework.Logf("%s: saw patched annotations", kind) | ||
sawPatched = true | ||
} else if watchedCSC.Annotations["updated"] == "true" { | ||
framework.Logf("%s: saw updated annotations", kind) | ||
sawUpdated = true | ||
} else { | ||
framework.Logf("%s: missing expected annotations, waiting: %#v", kind, watchedCSC.Annotations) | ||
} | ||
} else if evt.Type == watch.Added { | ||
_, isCSC := evt.Object.(*storagev1.CSIStorageCapacity) | ||
if !isCSC { | ||
framework.Failf("%s: expected CSC, got %T", kind, evt.Object) | ||
} | ||
sawAdded = true | ||
} | ||
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case <-time.After(wait.ForeverTestTimeout): | ||
framework.Failf("%s: timed out waiting for watch event", kind) | ||
} | ||
} | ||
w.Stop() | ||
} | ||
expectWatchResult("in namespace", cscWatch) | ||
expectWatchResult("across namespace", cscWatchNoNamespace) | ||
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// main resource delete operations | ||
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ginkgo.By("deleting") | ||
err = cscClient.Delete(context.TODO(), createdCSC.Name, metav1.DeleteOptions{}) | ||
framework.ExpectNoError(err) | ||
csc, err = cscClient.Get(context.TODO(), createdCSC.Name, metav1.GetOptions{}) | ||
min := 2 | ||
max := min | ||
switch { | ||
case apierrors.IsNotFound(err): | ||
// Okay, normal case. | ||
case err != nil: | ||
// Unexpected error. | ||
framework.Failf("expected 404, got %#v", err) | ||
case csc.DeletionTimestamp != nil && len(csc.Finalizers) > 0: | ||
// Deletion was prevented by a finalizer, but it might | ||
// still get deleted before we list them below. | ||
max++ | ||
default: | ||
framework.Failf("CSIStorageCapacitity should have been deleted or have DeletionTimestamp and Finalizers, but instead got: %s", csc) | ||
} | ||
cscs, err = cscClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
actualLen := len(cscs.Items) | ||
if actualLen < min || actualLen > max { | ||
framework.Failf("expected <= %d and >= %d remaining CSIStorageCapacity objects, got %d: %v", max, min, actualLen, cscs.Items) | ||
} | ||
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ginkgo.By("deleting a collection") | ||
err = cscClient.DeleteCollection(context.TODO(), metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
cscs, err = cscClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName}) | ||
framework.ExpectNoError(err) | ||
for _, csc := range cscs.Items { | ||
// Any remaining objects should be marked for deletion | ||
// and only held back by a Finalizer. | ||
if csc.DeletionTimestamp == nil || len(csc.Finalizers) == 0 { | ||
framework.Failf("CSIStorageCapacity should have been deleted or have DeletionTimestamp and Finalizers, but instead got: %s", &csc) | ||
} | ||
} | ||
}) | ||
}) |