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88 lines
3.1 KiB
Go
88 lines
3.1 KiB
Go
/*
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Copyright 2017 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 storage
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import (
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v1 "k8s.io/api/core/v1"
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utilerrors "k8s.io/apimachinery/pkg/util/errors"
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"k8s.io/kubernetes/test/e2e/framework"
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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e2epv "k8s.io/kubernetes/test/e2e/framework/pv"
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e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
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"k8s.io/kubernetes/test/e2e/upgrades"
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"github.com/onsi/ginkgo"
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)
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// PersistentVolumeUpgradeTest test that a pv is available before and after a cluster upgrade.
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type PersistentVolumeUpgradeTest struct {
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pvc *v1.PersistentVolumeClaim
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}
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// Name returns the tracking name of the test.
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func (PersistentVolumeUpgradeTest) Name() string { return "[sig-storage] persistent-volume-upgrade" }
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const (
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pvTestFile string = "/mnt/volume1/pv_upgrade_test"
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pvTestData string = "keep it pv"
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pvWriteCmd string = "echo \"" + pvTestData + "\" > " + pvTestFile
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pvReadCmd string = "cat " + pvTestFile
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)
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// Setup creates a pv and then verifies that a pod can consume it. The pod writes data to the volume.
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func (t *PersistentVolumeUpgradeTest) Setup(f *framework.Framework) {
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var err error
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e2eskipper.SkipUnlessProviderIs("gce", "gke", "openstack", "aws", "vsphere", "azure")
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ns := f.Namespace.Name
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ginkgo.By("Creating a PVC")
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pvcConfig := e2epv.PersistentVolumeClaimConfig{
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StorageClassName: nil,
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}
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t.pvc = e2epv.MakePersistentVolumeClaim(pvcConfig, ns)
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t.pvc, err = e2epv.CreatePVC(f.ClientSet, ns, t.pvc)
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framework.ExpectNoError(err)
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ginkgo.By("Consuming the PV before upgrade")
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t.testPod(f, pvWriteCmd+";"+pvReadCmd)
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}
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// Test waits for the upgrade to complete, and then verifies that a pod can still consume the pv
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// and that the volume data persists.
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func (t *PersistentVolumeUpgradeTest) Test(f *framework.Framework, done <-chan struct{}, upgrade upgrades.UpgradeType) {
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<-done
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ginkgo.By("Consuming the PV after upgrade")
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t.testPod(f, pvReadCmd)
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}
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// Teardown cleans up any remaining resources.
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func (t *PersistentVolumeUpgradeTest) Teardown(f *framework.Framework) {
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errs := e2epv.PVPVCCleanup(f.ClientSet, f.Namespace.Name, nil, t.pvc)
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if len(errs) > 0 {
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framework.Failf("Failed to delete 1 or more PVs/PVCs. Errors: %v", utilerrors.NewAggregate(errs))
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}
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}
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// testPod creates a pod that consumes a pv and prints it out. The output is then verified.
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func (t *PersistentVolumeUpgradeTest) testPod(f *framework.Framework, cmd string) {
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pod := e2epod.MakePod(f.Namespace.Name, nil, []*v1.PersistentVolumeClaim{t.pvc}, false, cmd)
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expectedOutput := []string{pvTestData}
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f.TestContainerOutput("pod consumes pv", pod, 0, expectedOutput)
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}
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