121 lines
4.1 KiB
Go
121 lines
4.1 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package pvc
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import (
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"context"
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"testing"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/client-go/kubernetes"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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kubeapiservertesting "k8s.io/kubernetes/cmd/kube-apiserver/app/testing"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/test/integration/framework"
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)
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func Test_UpgradePVC(t *testing.T) {
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t.Run("feature_enabled", func(t *testing.T) { test_UpgradePVC(t, true) })
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t.Run("feature_disabled", func(t *testing.T) { test_UpgradePVC(t, false) })
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}
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func test_UpgradePVC(t *testing.T, featureEnabled bool) {
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featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.AnyVolumeDataSource, featureEnabled)
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etcdOptions := framework.SharedEtcd()
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apiServerOptions := kubeapiservertesting.NewDefaultTestServerOptions()
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s := kubeapiservertesting.StartTestServerOrDie(t, apiServerOptions, nil, etcdOptions)
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defer s.TearDownFn()
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pvcName := "test-old-pvc"
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ns := "old-pvc-ns"
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kubeclient, err := kubernetes.NewForConfig(s.ClientConfig)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if _, err := kubeclient.CoreV1().Namespaces().Create(context.TODO(), (&v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: ns}}), metav1.CreateOptions{}); err != nil {
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t.Fatal(err)
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}
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// Create a pvc and store it in etcd with missing fields representing an old version
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pvc := &v1.PersistentVolumeClaim{
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ObjectMeta: metav1.ObjectMeta{
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Name: pvcName,
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Namespace: ns,
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CreationTimestamp: metav1.Now(),
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UID: "08675309-9376-9376-9376-086753099999",
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},
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Spec: v1.PersistentVolumeClaimSpec{
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Resources: v1.VolumeResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceName(v1.ResourceStorage): resource.MustParse("10G"),
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},
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},
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DataSource: &v1.TypedLocalObjectReference{
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APIGroup: nil,
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Kind: "PersistentVolumeClaim",
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Name: "foo",
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},
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AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce},
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},
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}
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pvcJSON, err := runtime.Encode(legacyscheme.Codecs.LegacyCodec(v1.SchemeGroupVersion), pvc)
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if err != nil {
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t.Fatalf("Failed creating pvc JSON: %v", err)
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}
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key := "/" + etcdOptions.Prefix + "/persistentvolumeclaims/" + ns + "/" + pvcName
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if _, err := s.EtcdClient.Put(context.Background(), key, string(pvcJSON)); err != nil {
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t.Error(err)
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}
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t.Logf("PVC stored in etcd %v", string(pvcJSON))
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// Try to update the pvc as a no-op write of the original content
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{
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_, err := kubeclient.CoreV1().PersistentVolumeClaims(ns).Update(context.TODO(), pvc, metav1.UpdateOptions{DryRun: []string{"All"}})
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if err != nil {
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t.Errorf("write of original content failed: %v", err)
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}
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}
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// Try to update the pvc as an internal server no-op patch of the original content
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{
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_, err := kubeclient.CoreV1().PersistentVolumeClaims(ns).Patch(context.TODO(), pvc.Name, types.MergePatchType, []byte(`{}`), metav1.PatchOptions{DryRun: []string{"All"}})
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if err != nil {
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t.Errorf("no-op patch failed: %v", err)
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}
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}
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// Try to update the pvc as a no-op get/update
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{
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getPVC, err := kubeclient.CoreV1().PersistentVolumeClaims(ns).Get(context.TODO(), pvc.Name, metav1.GetOptions{})
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if err != nil {
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t.Fatal(err)
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}
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_, err = kubeclient.CoreV1().PersistentVolumeClaims(ns).Update(context.TODO(), getPVC, metav1.UpdateOptions{DryRun: []string{"All"}})
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if err != nil {
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t.Errorf("no-op get/put failed: %v", err)
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}
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}
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}
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