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Merge pull request #77816 from liggitt/graceful-crd
Graceful custom resource storage teardown
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125 changes: 125 additions & 0 deletions
125
staging/src/k8s.io/apiextensions-apiserver/test/integration/change_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| /* | ||
| Copyright 2019 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. | ||
| */ | ||
|
|
||
| package integration | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "sync" | ||
| "testing" | ||
| "time" | ||
|
|
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| apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1" | ||
| "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset" | ||
| "k8s.io/apiextensions-apiserver/test/integration/fixtures" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/dynamic" | ||
| ) | ||
|
|
||
| func TestChangeCRD(t *testing.T) { | ||
| tearDown, config, _, err := fixtures.StartDefaultServer(t) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| defer tearDown() | ||
| config.QPS = 1000 | ||
| config.Burst = 1000 | ||
| apiExtensionsClient, err := clientset.NewForConfig(config) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| dynamicClient, err := dynamic.NewForConfig(config) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| noxuDefinition := fixtures.NewNoxuCustomResourceDefinition(apiextensionsv1beta1.NamespaceScoped) | ||
| noxuDefinition, err = fixtures.CreateNewCustomResourceDefinition(noxuDefinition, apiExtensionsClient, dynamicClient) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| ns := "default" | ||
| noxuNamespacedResourceClient := newNamespacedCustomResourceVersionedClient(ns, dynamicClient, noxuDefinition, "v1beta1") | ||
|
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| stopChan := make(chan struct{}) | ||
|
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| wg := &sync.WaitGroup{} | ||
|
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| // Set up loop to modify CRD in the background | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| for { | ||
| select { | ||
| case <-stopChan: | ||
| return | ||
| default: | ||
| } | ||
|
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| noxuDefinitionToUpdate, err := apiExtensionsClient.ApiextensionsV1beta1().CustomResourceDefinitions().Get(noxuDefinition.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| if len(noxuDefinitionToUpdate.Spec.Versions) == 1 { | ||
| v2 := noxuDefinitionToUpdate.Spec.Versions[0] | ||
| v2.Name = "v2" | ||
| v2.Served = true | ||
| v2.Storage = false | ||
| noxuDefinitionToUpdate.Spec.Versions = append(noxuDefinitionToUpdate.Spec.Versions, v2) | ||
| } else { | ||
| noxuDefinitionToUpdate.Spec.Versions = noxuDefinitionToUpdate.Spec.Versions[0:1] | ||
| } | ||
| if _, err := apiExtensionsClient.ApiextensionsV1beta1().CustomResourceDefinitions().Update(noxuDefinitionToUpdate); err != nil && !apierrors.IsConflict(err) { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
| }() | ||
|
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| // Set up 100 loops creating and reading custom resources | ||
| for i := 0; i < 100; i++ { | ||
| wg.Add(1) | ||
| go func(i int) { | ||
| defer wg.Done() | ||
| noxuInstanceToCreate := fixtures.NewNoxuInstance(ns, fmt.Sprintf("foo-%d", i)) | ||
| if _, err := noxuNamespacedResourceClient.Create(noxuInstanceToCreate, metav1.CreateOptions{}); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| for { | ||
| select { | ||
| case <-stopChan: | ||
| return | ||
| default: | ||
| if _, err := noxuNamespacedResourceClient.Get(noxuInstanceToCreate.GetName(), metav1.GetOptions{}); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
| }(i) | ||
| } | ||
|
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| // Let all the established get request loops soak | ||
| time.Sleep(5 * time.Second) | ||
|
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| // Tear down | ||
| close(stopChan) | ||
|
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| // Let loops drain | ||
| wg.Wait() | ||
| } |