crd_watch.go 5.8 KB

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  1. /*
  2. Copyright 2018 The Kubernetes Authors.
  3. Licensed under the Apache License, Version 2.0 (the "License");
  4. you may not use this file except in compliance with the License.
  5. You may obtain a copy of the License at
  6. http://www.apache.org/licenses/LICENSE-2.0
  7. Unless required by applicable law or agreed to in writing, software
  8. distributed under the License is distributed on an "AS IS" BASIS,
  9. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10. See the License for the specific language governing permissions and
  11. limitations under the License.
  12. */
  13. package apimachinery
  14. import (
  15. "fmt"
  16. apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
  17. "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
  18. "k8s.io/apiextensions-apiserver/test/integration/fixtures"
  19. "k8s.io/apimachinery/pkg/api/meta"
  20. metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
  21. "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
  22. "k8s.io/apimachinery/pkg/runtime/schema"
  23. "k8s.io/apimachinery/pkg/watch"
  24. "k8s.io/client-go/dynamic"
  25. "k8s.io/kubernetes/test/e2e/framework"
  26. "github.com/onsi/ginkgo"
  27. )
  28. var _ = SIGDescribe("CustomResourceDefinition Watch", func() {
  29. f := framework.NewDefaultFramework("crd-watch")
  30. ginkgo.Context("CustomResourceDefinition Watch", func() {
  31. /*
  32. Testname: crd-watch
  33. Description: Create a Custom Resource Definition and make sure
  34. watches observe events on create/delete.
  35. */
  36. ginkgo.It("watch on custom resource definition objects", func() {
  37. framework.SkipUnlessServerVersionGTE(crdVersion, f.ClientSet.Discovery())
  38. const (
  39. watchCRNameA = "name1"
  40. watchCRNameB = "name2"
  41. )
  42. config, err := framework.LoadConfig()
  43. if err != nil {
  44. framework.Failf("failed to load config: %v", err)
  45. }
  46. apiExtensionClient, err := clientset.NewForConfig(config)
  47. if err != nil {
  48. framework.Failf("failed to initialize apiExtensionClient: %v", err)
  49. }
  50. noxuDefinition := fixtures.NewNoxuCustomResourceDefinition(apiextensionsv1beta1.ClusterScoped)
  51. noxuDefinition, err = fixtures.CreateNewCustomResourceDefinition(noxuDefinition, apiExtensionClient, f.DynamicClient)
  52. if err != nil {
  53. framework.Failf("failed to create CustomResourceDefinition: %v", err)
  54. }
  55. defer func() {
  56. err = fixtures.DeleteCustomResourceDefinition(noxuDefinition, apiExtensionClient)
  57. if err != nil {
  58. framework.Failf("failed to delete CustomResourceDefinition: %v", err)
  59. }
  60. }()
  61. ns := ""
  62. noxuResourceClient := newNamespacedCustomResourceClient(ns, f.DynamicClient, noxuDefinition)
  63. watchA, err := watchCRWithName(noxuResourceClient, watchCRNameA)
  64. framework.ExpectNoError(err, "failed to watch custom resource: %s", watchCRNameA)
  65. watchB, err := watchCRWithName(noxuResourceClient, watchCRNameB)
  66. framework.ExpectNoError(err, "failed to watch custom resource: %s", watchCRNameB)
  67. testCrA := fixtures.NewNoxuInstance(ns, watchCRNameA)
  68. testCrB := fixtures.NewNoxuInstance(ns, watchCRNameB)
  69. ginkgo.By("Creating first CR ")
  70. testCrA, err = instantiateCustomResource(testCrA, noxuResourceClient, noxuDefinition)
  71. framework.ExpectNoError(err, "failed to instantiate custom resource: %+v", testCrA)
  72. expectEvent(watchA, watch.Added, testCrA)
  73. expectNoEvent(watchB, watch.Added, testCrA)
  74. ginkgo.By("Creating second CR")
  75. testCrB, err = instantiateCustomResource(testCrB, noxuResourceClient, noxuDefinition)
  76. framework.ExpectNoError(err, "failed to instantiate custom resource: %+v", testCrB)
  77. expectEvent(watchB, watch.Added, testCrB)
  78. expectNoEvent(watchA, watch.Added, testCrB)
  79. ginkgo.By("Deleting first CR")
  80. err = deleteCustomResource(noxuResourceClient, watchCRNameA)
  81. framework.ExpectNoError(err, "failed to delete custom resource: %s", watchCRNameA)
  82. expectEvent(watchA, watch.Deleted, nil)
  83. expectNoEvent(watchB, watch.Deleted, nil)
  84. ginkgo.By("Deleting second CR")
  85. err = deleteCustomResource(noxuResourceClient, watchCRNameB)
  86. framework.ExpectNoError(err, "failed to delete custom resource: %s", watchCRNameB)
  87. expectEvent(watchB, watch.Deleted, nil)
  88. expectNoEvent(watchA, watch.Deleted, nil)
  89. })
  90. })
  91. })
  92. func watchCRWithName(crdResourceClient dynamic.ResourceInterface, name string) (watch.Interface, error) {
  93. return crdResourceClient.Watch(
  94. metav1.ListOptions{
  95. FieldSelector: "metadata.name=" + name,
  96. TimeoutSeconds: int64ptr(600),
  97. },
  98. )
  99. }
  100. func instantiateCustomResource(instanceToCreate *unstructured.Unstructured, client dynamic.ResourceInterface, definition *apiextensionsv1beta1.CustomResourceDefinition) (*unstructured.Unstructured, error) {
  101. createdInstance, err := client.Create(instanceToCreate, metav1.CreateOptions{})
  102. if err != nil {
  103. return nil, err
  104. }
  105. createdObjectMeta, err := meta.Accessor(createdInstance)
  106. if err != nil {
  107. return nil, err
  108. }
  109. // it should have a UUID
  110. if len(createdObjectMeta.GetUID()) == 0 {
  111. return nil, fmt.Errorf("missing uuid: %#v", createdInstance)
  112. }
  113. createdTypeMeta, err := meta.TypeAccessor(createdInstance)
  114. if err != nil {
  115. return nil, err
  116. }
  117. if e, a := definition.Spec.Group+"/"+definition.Spec.Version, createdTypeMeta.GetAPIVersion(); e != a {
  118. return nil, fmt.Errorf("expected %v, got %v", e, a)
  119. }
  120. if e, a := definition.Spec.Names.Kind, createdTypeMeta.GetKind(); e != a {
  121. return nil, fmt.Errorf("expected %v, got %v", e, a)
  122. }
  123. return createdInstance, nil
  124. }
  125. func deleteCustomResource(client dynamic.ResourceInterface, name string) error {
  126. return client.Delete(name, &metav1.DeleteOptions{})
  127. }
  128. func newNamespacedCustomResourceClient(ns string, client dynamic.Interface, crd *apiextensionsv1beta1.CustomResourceDefinition) dynamic.ResourceInterface {
  129. gvr := schema.GroupVersionResource{Group: crd.Spec.Group, Version: crd.Spec.Version, Resource: crd.Spec.Names.Plural}
  130. if crd.Spec.Scope != apiextensionsv1beta1.ClusterScoped {
  131. return client.Resource(gvr).Namespace(ns)
  132. }
  133. return client.Resource(gvr)
  134. }