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ceph-csi/e2e/cephfs_helper.go

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/*
Copyright 2021 The Ceph-CSI 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 e2e
import (
"context"
"encoding/json"
"fmt"
"regexp"
"strings"
"time"
snapapi "github.com/kubernetes-csi/external-snapshotter/client/v6/apis/volumesnapshot/v1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/test/e2e/framework"
)
const (
adminUser = "admin"
)
// validateSubvolumegroup validates whether subvolumegroup is present.
func validateSubvolumegroup(f *framework.Framework, subvolgrp string) error {
cmd := fmt.Sprintf("ceph fs subvolumegroup getpath %s %s", fileSystemName, subvolgrp)
stdOut, stdErr, err := execCommandInToolBoxPod(f, cmd, rookNamespace)
if err != nil {
return fmt.Errorf("failed to exec command in toolbox: %w", err)
}
if stdErr != "" {
return fmt.Errorf("failed to getpath for subvolumegroup %s : %v", subvolgrp, stdErr)
}
expectedGrpPath := "/volumes/" + subvolgrp
stdOut = strings.TrimSpace(stdOut)
if stdOut != expectedGrpPath {
return fmt.Errorf("error unexpected group path. Found: %s", stdOut)
}
return nil
}
func createCephfsStorageClass(
c kubernetes.Interface,
f *framework.Framework,
enablePool bool,
params map[string]string,
) error {
scPath := fmt.Sprintf("%s/%s", cephFSExamplePath, "storageclass.yaml")
sc, err := getStorageClass(scPath)
if err != nil {
return err
}
sc.Parameters["fsName"] = fileSystemName
sc.Parameters["csi.storage.k8s.io/provisioner-secret-namespace"] = cephCSINamespace
sc.Parameters["csi.storage.k8s.io/provisioner-secret-name"] = cephFSProvisionerSecretName
sc.Parameters["csi.storage.k8s.io/controller-expand-secret-namespace"] = cephCSINamespace
sc.Parameters["csi.storage.k8s.io/controller-expand-secret-name"] = cephFSProvisionerSecretName
sc.Parameters["csi.storage.k8s.io/node-stage-secret-namespace"] = cephCSINamespace
sc.Parameters["csi.storage.k8s.io/node-stage-secret-name"] = cephFSNodePluginSecretName
if enablePool {
sc.Parameters["pool"] = "myfs-replicated"
}
// overload any parameters that were passed
if params == nil {
// create an empty params, so that params["clusterID"] below
// does not panic
params = map[string]string{}
}
for param, value := range params {
sc.Parameters[param] = value
}
// fetch and set fsID from the cluster if not set in params
if _, found := params["clusterID"]; !found {
var fsID string
fsID, err = getClusterID(f)
if err != nil {
return fmt.Errorf("failed to get clusterID: %w", err)
}
sc.Parameters["clusterID"] = fsID
}
timeout := time.Duration(deployTimeout) * time.Minute
return wait.PollUntilContextTimeout(context.TODO(), poll, timeout, true, func(ctx context.Context) (bool, error) {
_, err = c.StorageV1().StorageClasses().Create(ctx, &sc, metav1.CreateOptions{})
if err != nil {
framework.Logf("error creating StorageClass %q: %v", sc.Name, err)
if isRetryableAPIError(err) {
return false, nil
}
return false, fmt.Errorf("failed to create StorageClass %q: %w", sc.Name, err)
}
return true, nil
})
}
func createCephfsSecret(f *framework.Framework, secretName, userName, userKey string) error {
scPath := fmt.Sprintf("%s/%s", cephFSExamplePath, "secret.yaml")
sc, err := getSecret(scPath)
if err != nil {
return err
}
if secretName != "" {
sc.Name = secretName
}
sc.StringData["adminID"] = userName
sc.StringData["adminKey"] = userKey
delete(sc.StringData, "userID")
delete(sc.StringData, "userKey")
sc.Namespace = cephCSINamespace
_, err = f.ClientSet.CoreV1().Secrets(cephCSINamespace).Create(context.TODO(), &sc, metav1.CreateOptions{})
return err
}
// unmountCephFSVolume unmounts a cephFS volume mounted on a pod.
func unmountCephFSVolume(f *framework.Framework, appName, pvcName string) error {
pod, err := f.ClientSet.CoreV1().Pods(f.UniqueName).Get(context.TODO(), appName, metav1.GetOptions{})
if err != nil {
framework.Logf("Error occurred getting pod %s in namespace %s", appName, f.UniqueName)
return fmt.Errorf("failed to get pod: %w", err)
}
pvc, err := getPersistentVolumeClaim(f.ClientSet, f.UniqueName, pvcName)
if err != nil {
framework.Logf("Error occurred getting PVC %s in namespace %s", pvcName, f.UniqueName)
return fmt.Errorf("failed to get pvc: %w", err)
}
cmd := fmt.Sprintf(
"umount /var/lib/kubelet/pods/%s/volumes/kubernetes.io~csi/%s/mount",
pod.UID,
pvc.Spec.VolumeName)
stdErr, err := execCommandInDaemonsetPod(
f,
cmd,
cephFSDeamonSetName,
pod.Spec.NodeName,
cephFSContainerName,
cephCSINamespace)
if stdErr != "" {
framework.Logf("StdErr occurred: %s", stdErr)
}
return err
}
func deleteBackingCephFSVolume(f *framework.Framework, pvc *v1.PersistentVolumeClaim) error {
imageData, err := getImageInfoFromPVC(pvc.Namespace, pvc.Name, f)
if err != nil {
return err
}
cmd := fmt.Sprintf("ceph fs subvolume rm %s %s %s", fileSystemName, imageData.imageName, subvolumegroup)
_, stdErr, err := execCommandInToolBoxPod(f, cmd, rookNamespace)
if err != nil {
return err
}
if stdErr != "" {
return fmt.Errorf("error deleting backing volume %s %v", imageData.imageName, stdErr)
}
return nil
}
type cephfsSubVolume struct {
Name string `json:"name"`
}
func listCephFSSubVolumes(f *framework.Framework, filesystem, groupname string) ([]cephfsSubVolume, error) {
var subVols []cephfsSubVolume
stdout, stdErr, err := execCommandInToolBoxPod(
f,
fmt.Sprintf("ceph fs subvolume ls %s --group_name=%s --format=json", filesystem, groupname),
rookNamespace)
if err != nil {
return subVols, err
}
if stdErr != "" {
return subVols, fmt.Errorf("error listing subvolumes %v", stdErr)
}
err = json.Unmarshal([]byte(stdout), &subVols)
if err != nil {
return subVols, err
}
return subVols, nil
}
type cephfsSubvolumeMetadata struct {
PVCNameKey string `json:"csi.storage.k8s.io/pvc/name"`
PVCNamespaceKey string `json:"csi.storage.k8s.io/pvc/namespace"`
PVNameKey string `json:"csi.storage.k8s.io/pv/name"`
ClusterNameKey string `json:"csi.ceph.com/cluster/name"`
}
func listCephFSSubvolumeMetadata(
f *framework.Framework,
filesystem,
subvolume,
groupname string,
) (*cephfsSubvolumeMetadata, error) {
stdout, stdErr, err := execCommandInToolBoxPod(
f,
fmt.Sprintf("ceph fs subvolume metadata ls %s %s --group_name=%s --format=json", filesystem, subvolume, groupname),
rookNamespace)
if err != nil {
return nil, err
}
if stdErr != "" {
return nil, fmt.Errorf("error listing subvolume metadata %v", stdErr)
}
metadata := &cephfsSubvolumeMetadata{}
err = json.Unmarshal([]byte(stdout), metadata)
if err != nil {
return metadata, err
}
return metadata, nil
}
type cephfsSnapshotMetadata struct {
VolSnapNameKey string `json:"csi.storage.k8s.io/volumesnapshot/name"`
VolSnapNamespaceKey string `json:"csi.storage.k8s.io/volumesnapshot/namespace"`
VolSnapContentNameKey string `json:"csi.storage.k8s.io/volumesnapshotcontent/name"`
ClusterNameKey string `json:"csi.ceph.com/cluster/name"`
}
func listCephFSSnapshotMetadata(
f *framework.Framework,
filesystem,
subvolume,
snapname,
groupname string,
) (*cephfsSnapshotMetadata, error) {
stdout, stdErr, err := execCommandInToolBoxPod(
f,
fmt.Sprintf("ceph fs subvolume snapshot metadata ls %s %s %s --group_name=%s --format=json",
filesystem, subvolume, snapname, groupname),
rookNamespace)
if err != nil {
return nil, err
}
if stdErr != "" {
return nil, fmt.Errorf("error listing subvolume snapshots metadata %v", stdErr)
}
metadata := &cephfsSnapshotMetadata{}
err = json.Unmarshal([]byte(stdout), metadata)
if err != nil {
return metadata, err
}
return metadata, nil
}
type cephfsSnapshot struct {
Name string `json:"name"`
}
func listCephFSSnapshots(f *framework.Framework, filesystem, subvolume, groupname string) ([]cephfsSnapshot, error) {
var snaps []cephfsSnapshot
stdout, stdErr, err := execCommandInToolBoxPod(
f,
fmt.Sprintf("ceph fs subvolume snapshot ls %s %s --group_name=%s --format=json", filesystem, subvolume, groupname),
rookNamespace)
if err != nil {
return snaps, err
}
if stdErr != "" {
return snaps, fmt.Errorf("error listing subolume snapshots %v", stdErr)
}
err = json.Unmarshal([]byte(stdout), &snaps)
if err != nil {
return snaps, err
}
return snaps, nil
}
// getSubvolumepath validates whether subvolumegroup is present.
func getSubvolumePath(f *framework.Framework, filesystem, subvolgrp, subvolume string) (string, error) {
cmd := fmt.Sprintf("ceph fs subvolume getpath %s %s --group_name=%s", filesystem, subvolume, subvolgrp)
stdOut, stdErr, err := execCommandInToolBoxPod(f, cmd, rookNamespace)
if err != nil {
return "", err
}
if stdErr != "" {
return "", fmt.Errorf("failed to getpath for subvolume %s : %s", subvolume, stdErr)
}
return strings.TrimSpace(stdOut), nil
}
func getSnapName(snapNamespace, snapName string) (string, error) {
sclient, err := newSnapshotClient()
if err != nil {
return "", err
}
snap, err := sclient.
VolumeSnapshots(snapNamespace).
Get(context.TODO(), snapName, metav1.GetOptions{})
if err != nil {
return "", fmt.Errorf("failed to get volumesnapshot: %w", err)
}
sc, err := sclient.
VolumeSnapshotContents().
Get(context.TODO(), *snap.Status.BoundVolumeSnapshotContentName, metav1.GetOptions{})
if err != nil {
return "", fmt.Errorf("failed to get volumesnapshotcontent: %w", err)
}
snapIDRegex := regexp.MustCompile(`(\w+\-?){5}$`)
snapID := snapIDRegex.FindString(*sc.Status.SnapshotHandle)
snapshotName := fmt.Sprintf("csi-snap-%s", snapID)
framework.Logf("snapshotName= %s", snapshotName)
return snapshotName, nil
}
func deleteBackingCephFSSubvolumeSnapshot(
f *framework.Framework,
pvc *v1.PersistentVolumeClaim,
snap *snapapi.VolumeSnapshot,
) error {
snapshotName, err := getSnapName(snap.Namespace, snap.Name)
if err != nil {
return err
}
imageData, err := getImageInfoFromPVC(pvc.Namespace, pvc.Name, f)
if err != nil {
return err
}
cmd := fmt.Sprintf(
"ceph fs subvolume snapshot rm %s %s %s %s",
fileSystemName,
imageData.imageName,
snapshotName,
subvolumegroup)
_, stdErr, err := execCommandInToolBoxPod(f, cmd, rookNamespace)
if err != nil {
return err
}
if stdErr != "" {
return fmt.Errorf("error deleting backing snapshot %s %v", snapshotName, stdErr)
}
return nil
}
func validateEncryptedCephfs(f *framework.Framework, pvName, appName string) error {
pod, err := f.ClientSet.CoreV1().Pods(f.UniqueName).Get(context.TODO(), appName, metav1.GetOptions{})
if err != nil {
return fmt.Errorf("failed to get pod %q in namespace %q: %w", appName, f.UniqueName, err)
}
volumeMountPath := fmt.Sprintf(
"/var/lib/kubelet/pods/%s/volumes/kubernetes.io~csi/%s/mount",
pod.UID,
pvName)
selector, err := getDaemonSetLabelSelector(f, cephCSINamespace, cephFSDeamonSetName)
if err != nil {
return fmt.Errorf("failed to get labels: %w", err)
}
opt := metav1.ListOptions{
LabelSelector: selector,
}
cmd := fmt.Sprintf("getfattr --name=ceph.fscrypt.auth --only-values %s", volumeMountPath)
_, _, err = execCommandInContainer(f, cmd, cephCSINamespace, "csi-cephfsplugin", &opt)
if err != nil {
cmd = fmt.Sprintf("getfattr --recursive --dump %s", volumeMountPath)
stdOut, stdErr, listErr := execCommandInContainer(f, cmd, cephCSINamespace, "csi-cephfsplugin", &opt)
if listErr == nil {
return fmt.Errorf("error checking for cephfs fscrypt xattr on %q. listing: %s %s",
volumeMountPath, stdOut, stdErr)
}
return fmt.Errorf("error checking file xattr: %w", err)
}
return nil
}
func getInfoFromPVC(pvcNamespace, pvcName string, f *framework.Framework) (string, string, error) {
c := f.ClientSet.CoreV1()
pvc, err := c.PersistentVolumeClaims(pvcNamespace).Get(context.TODO(), pvcName, metav1.GetOptions{})
if err != nil {
return "", "", fmt.Errorf("failed to get pvc: %w", err)
}
pv, err := c.PersistentVolumes().Get(context.TODO(), pvc.Spec.VolumeName, metav1.GetOptions{})
if err != nil {
return "", "", fmt.Errorf("failed to get pv: %w", err)
}
return pv.Name, pv.Spec.CSI.VolumeHandle, nil
}
func validateFscryptAndAppBinding(pvcPath, appPath string, kms kmsConfig, f *framework.Framework) error {
pvc, app, err := createPVCAndAppBinding(pvcPath, appPath, f, deployTimeout)
if err != nil {
return err
}
pvName, csiVolumeHandle, err := getInfoFromPVC(pvc.Namespace, pvc.Name, f)
if err != nil {
return err
}
err = validateEncryptedCephfs(f, pvName, app.Name)
if err != nil {
return err
}
if kms != noKMS && kms.canGetPassphrase() {
// check new passphrase created
_, stdErr := kms.getPassphrase(f, csiVolumeHandle)
if stdErr != "" {
return fmt.Errorf("failed to read passphrase from vault: %s", stdErr)
}
}
err = deletePVCAndApp("", f, pvc, app)
if err != nil {
return err
}
if kms != noKMS && kms.canGetPassphrase() {
// check new passphrase created
stdOut, _ := kms.getPassphrase(f, csiVolumeHandle)
if stdOut != "" {
return fmt.Errorf("passphrase found in vault while should be deleted: %s", stdOut)
}
}
if kms != noKMS && kms.canVerifyKeyDestroyed() {
destroyed, msg := kms.verifyKeyDestroyed(f, csiVolumeHandle)
if !destroyed {
return fmt.Errorf("passphrased was not destroyed: %s", msg)
} else if msg != "" {
framework.Logf("passphrase destroyed, but message returned: %s", msg)
}
}
return nil
}
//nolint:gocyclo,cyclop // test function
func validateFscryptClone(
pvcPath, appPath, pvcSmartClonePath, appSmartClonePath string,
kms kmsConfig,
f *framework.Framework,
) {
pvc, err := loadPVC(pvcPath)
if err != nil {
framework.Failf("failed to load PVC: %v", err)
}
pvc.Namespace = f.UniqueName
err = createPVCAndvalidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC: %v", err)
}
app, err := loadApp(appPath)
if err != nil {
framework.Failf("failed to load application: %v", err)
}
label := make(map[string]string)
label[appKey] = appLabel
app.Namespace = f.UniqueName
app.Spec.Volumes[0].PersistentVolumeClaim.ClaimName = pvc.Name
app.Labels = label
opt := metav1.ListOptions{
LabelSelector: fmt.Sprintf("%s=%s", appKey, label[appKey]),
}
wErr := writeDataInPod(app, &opt, f)
if wErr != nil {
framework.Failf("failed to write data from application %v", wErr)
}
pvcClone, err := loadPVC(pvcSmartClonePath)
if err != nil {
framework.Failf("failed to load PVC: %v", err)
}
pvcClone.Spec.DataSource.Name = pvc.Name
pvcClone.Namespace = f.UniqueName
appClone, err := loadApp(appSmartClonePath)
if err != nil {
framework.Failf("failed to load application: %v", err)
}
appClone.Namespace = f.UniqueName
appClone.Labels = map[string]string{
appKey: f.UniqueName,
}
err = createPVCAndApp(f.UniqueName, f, pvcClone, appClone, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC or application (%s): %v", f.UniqueName, err)
}
_, csiVolumeHandle, err := getInfoFromPVC(pvcClone.Namespace, pvcClone.Name, f)
if err != nil {
framework.Failf("failed to get pvc info: %s", err)
}
if kms != noKMS && kms.canGetPassphrase() {
// check new passphrase created
stdOut, stdErr := kms.getPassphrase(f, csiVolumeHandle)
if stdOut != "" {
framework.Logf("successfully read the passphrase from vault: %s", stdOut)
}
if stdErr != "" {
framework.Failf("failed to read passphrase from vault: %s", stdErr)
}
}
// delete parent pvc
err = deletePVCAndApp("", f, pvc, app)
if err != nil {
framework.Failf("failed to delete PVC or application: %v", err)
}
err = deletePVCAndApp(f.UniqueName, f, pvcClone, appClone)
if err != nil {
framework.Failf("failed to delete PVC or application (%s): %v", f.UniqueName, err)
}
if kms != noKMS && kms.canGetPassphrase() {
// check passphrase deleted
stdOut, _ := kms.getPassphrase(f, csiVolumeHandle)
if stdOut != "" {
framework.Failf("passphrase found in vault while should be deleted: %s", stdOut)
}
}
if kms != noKMS && kms.canVerifyKeyDestroyed() {
destroyed, msg := kms.verifyKeyDestroyed(f, csiVolumeHandle)
if !destroyed {
framework.Failf("passphrased was not destroyed: %s", msg)
} else if msg != "" {
framework.Logf("passphrase destroyed, but message returned: %s", msg)
}
}
}