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e2e: introduce writeDataInPod() to write data to an attached PVC

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writeDataInPod() write data to the attached PVC using `dd` command
It leave the pod and pvc state as it is.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit is contained in:
Humble Chirammal 2020-08-03 22:25:44 +05:30 committed by mergify[bot]
parent 53fa00dee8
commit 2d72550a39
1 changed files with 21 additions and 1 deletions
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22
e2e/utils.go
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@ -283,7 +283,6 @@ func createCephfsStorageClass(c kubernetes.Interface, f *framework.Framework, en
Expect(stdErr).Should(BeEmpty()) Expect(stdErr).Should(BeEmpty())
// remove new line present in fsID // remove new line present in fsID
fsID = strings.Trim(fsID, "\n") fsID = strings.Trim(fsID, "\n")
if clusterID != "" { if clusterID != "" {
fsID = clusterID fsID = clusterID
} }
@ -928,6 +927,27 @@ func listRBDImages(f *framework.Framework) []string {
return imgInfos return imgInfos
} }
// writeDataInPod fill zero content to a file in the provided POD volume.
func writeDataInPod(app *v1.Pod, f *framework.Framework) error {
app.Labels = map[string]string{"app": "write-data-in-pod"}
app.Namespace = f.UniqueName
err := createApp(f.ClientSet, app, deployTimeout)
if err != nil {
return err
}
opt := metav1.ListOptions{
LabelSelector: "app=write-data-in-pod",
}
// write data to PVC. The idea here is to fill some content in the file
// instead of filling and reverifying the md5sum/data integrity
filePath := app.Spec.Containers[0].VolumeMounts[0].MountPath + "/test"
// While writing more data we are encountering issues in E2E timeout, so keeping it low for now
_, writeErr := execCommandInPod(f, fmt.Sprintf("dd if=/dev/zero of=%s bs=1M count=10 status=none", filePath), app.Namespace, &opt)
Expect(writeErr).Should(BeEmpty())
return nil
}
func checkDataPersist(pvcPath, appPath string, f *framework.Framework) error { func checkDataPersist(pvcPath, appPath string, f *framework.Framework) error {
data := "checking data persist" data := "checking data persist"
pvc, err := loadPVC(pvcPath) pvc, err := loadPVC(pvcPath)