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rbd: Add rados namespace support for rbd

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Make sure to operate within the namespace if any given
when dealing with rbd images and snapshots and their journals.

Signed-off-by: Mehdy Khoshnoody <mehdy.khoshnoody@gmail.com>
This commit is contained in:
Mehdy Khoshnoody 2020-06-01 18:27:51 +04:30 committed by Humble Devassy Chirammal
parent b5320d9273
commit fc5eadf106
12 changed files with 125 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
internal/cephfs/fsjournal.go
View File

@ -65,7 +65,8 @@ func checkVolExists(ctx context.Context,
sID *snapshotIdentifier,
cr *util.Credentials) (*volumeIdentifier, error) {
var vid volumeIdentifier
j, err := volJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := volJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return nil, err
}
@ -174,7 +175,8 @@ func undoVolReservation(ctx context.Context, volOptions *volumeOptions, vid volu
}
defer cr.DeleteCredentials()
j, err := volJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := volJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return err
}
@ -220,7 +222,8 @@ func reserveVol(ctx context.Context, volOptions *volumeOptions, secret map[strin
return nil, err
}
j, err := volJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := volJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return nil, err
}
@ -256,7 +259,8 @@ func reserveSnap(ctx context.Context, volOptions *volumeOptions, parentSubVolNam
err error
)
j, err := snapJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := snapJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return nil, err
}
@ -285,7 +289,8 @@ func reserveSnap(ctx context.Context, volOptions *volumeOptions, parentSubVolNam
// undoSnapReservation is a helper routine to undo a name reservation for a CSI SnapshotName.
func undoSnapReservation(ctx context.Context, volOptions *volumeOptions, vid snapshotIdentifier, snapName string, cr *util.Credentials) error {
j, err := snapJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := snapJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return err
}
@ -316,7 +321,8 @@ func checkSnapExists(
parentSubVolName string,
snap *cephfsSnapshot,
cr *util.Credentials) (*snapshotIdentifier, *snapshotInfo, error) {
j, err := snapJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := snapJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return nil, nil, err
}

6
internal/cephfs/volumeoptions.go
View File

@ -261,7 +261,8 @@ func newVolumeOptionsFromVolID(ctx context.Context, volID string, volOpt, secret
return nil, nil, err
}
j, err := volJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := volJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return nil, nil, err
}
@ -448,7 +449,8 @@ func newSnapshotOptionsFromID(ctx context.Context, snapID string, cr *util.Crede
return &volOptions, nil, &sid, err
}
j, err := snapJournal.Connect(volOptions.Monitors, cr)
// Connect to cephfs' default radosNamespace (csi)
j, err := snapJournal.Connect(volOptions.Monitors, radosNamespace, cr)
if err != nil {
return &volOptions, nil, &sid, err
}

3
internal/journal/voljournal.go
View File

@ -235,7 +235,8 @@ type Connection struct {
}
// Connect establishes a new connection to a ceph cluster for journal metadata.
func (cj *Config) Connect(monitors string, cr *util.Credentials) (*Connection, error) {
func (cj *Config) Connect(monitors, namespace string, cr *util.Credentials) (*Connection, error) {
cj.namespace = namespace
cc := &util.ClusterConnection{}
if err := cc.Connect(monitors, cr); err != nil {
return nil, err

2
internal/rbd/clone.go
View File

@ -164,7 +164,7 @@ func (rv *rbdVolume) createCloneFromImage(ctx context.Context, parentVol *rbdVol
)
var j = &journal.Connection{}
j, err = volJournal.Connect(rv.Monitors, rv.conn.Creds)
j, err = volJournal.Connect(rv.Monitors, rv.RadosNamespace, rv.conn.Creds)
if err != nil {
return status.Error(codes.Internal, err.Error())
}

11
internal/rbd/controllerserver.go
View File

@ -75,6 +75,9 @@ func (cs *ControllerServer) validateVolumeReq(ctx context.Context, req *csi.Crea
if value, ok := options["dataPool"]; ok && value == "" {
return status.Error(codes.InvalidArgument, "empty datapool name to provision volume from")
}
if value, ok := options["raodsNamespace"]; ok && value == "" {
return status.Error(codes.InvalidArgument, "empty namespace name to provision volume from")
}
if value, ok := options["volumeNamePrefix"]; ok && value == "" {
return status.Error(codes.InvalidArgument, "empty volume name prefix to provision volume from")
}
@ -146,6 +149,9 @@ func buildCreateVolumeResponse(ctx context.Context, req *csi.CreateVolumeRequest
volumeContext["pool"] = rbdVol.Pool
volumeContext["journalPool"] = rbdVol.JournalPool
volumeContext["imageName"] = rbdVol.RbdImageName
if rbdVol.RadosNamespace != "" {
volumeContext["radosNamespace"] = rbdVol.RadosNamespace
}
volume := &csi.Volume{
VolumeId: rbdVol.VolID,
CapacityBytes: rbdVol.VolSize,
@ -291,6 +297,7 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
volumeContext := req.GetParameters()
volumeContext["pool"] = rbdVol.Pool
volumeContext["journalPool"] = rbdVol.JournalPool
volumeContext["radosNamespace"] = rbdVol.RadosNamespace
volumeContext["imageName"] = rbdVol.RbdImageName
volume := &csi.Volume{
VolumeId: rbdVol.VolID,
@ -409,7 +416,7 @@ func (cs *ControllerServer) createBackingImage(ctx context.Context, cr *util.Cre
var err error
var j = &journal.Connection{}
j, err = volJournal.Connect(rbdVol.Monitors, cr)
j, err = volJournal.Connect(rbdVol.Monitors, rbdVol.RadosNamespace, cr)
if err != nil {
return status.Error(codes.Internal, err.Error())
}
@ -906,7 +913,7 @@ func (cs *ControllerServer) doSnapshotClone(ctx context.Context, parentVol *rbdV
}
var j = &journal.Connection{}
// save image ID
j, err = snapJournal.Connect(rbdSnap.Monitors, cr)
j, err = snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
if err != nil {
klog.Errorf(util.Log(ctx, "failed to connect to cluster: %v"), err)
return ready, cloneRbd, err

2
internal/rbd/errors.go
View File

@ -19,7 +19,7 @@ package rbd
import "errors"
var (
// ErrImageNotFound is returned when image name is not found in the cluster on the given pool.
// ErrImageNotFound is returned when image name is not found in the cluster on the given pool and/or namespace.
ErrImageNotFound = errors.New("image not found")
// ErrSnapNotFound is returned when snap name passed is not found in the list of snapshots for the
// given image.

4
internal/rbd/nodeserver.go
View File

@ -187,7 +187,7 @@ func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVol
return nil, status.Error(codes.Internal, err.Error())
}
j, err2 := volJournal.Connect(volOptions.Monitors, cr)
j, err2 := volJournal.Connect(volOptions.Monitors, volOptions.RadosNamespace, cr)
if err2 != nil {
klog.Errorf(
util.Log(ctx, "failed to establish cluster connection: %v"),
@ -751,7 +751,7 @@ func getDevicePath(ctx context.Context, volumePath string) (string, error) {
if err != nil {
klog.Errorf(util.Log(ctx, "failed to find image metadata: %v"), err)
}
device, found := findDeviceMappingImage(ctx, imgInfo.Pool, imgInfo.ImageName, imgInfo.NbdAccess)
device, found := findDeviceMappingImage(ctx, imgInfo.Pool, imgInfo.RadosNamespace, imgInfo.ImageName, imgInfo.NbdAccess)
if found {
return device, nil
}

22
internal/rbd/rbd_attach.go
View File

@ -60,6 +60,7 @@ func init() {
type rbdDeviceInfo struct {
ID string `json:"id"`
Pool string `json:"pool"`
RadosNamespace string `json:"radosNamespace"`
Name string `json:"name"`
Device string `json:"device"`
}
@ -71,6 +72,7 @@ type rbdDeviceInfo struct {
type nbdDeviceInfo struct {
ID int64 `json:"id"`
Pool string `json:"pool"`
RadosNamespace string `json:"radosNamespace"`
Name string `json:"image"`
Device string `json:"device"`
}
@ -106,6 +108,7 @@ func rbdGetDeviceList(ctx context.Context, accessType string) ([]rbdDeviceInfo,
rbdDeviceInfo{
ID: strconv.FormatInt(device.ID, 10),
Pool: device.Pool,
RadosNamespace: device.RadosNamespace,
Name: device.Name,
Device: device.Device,
})
@ -115,21 +118,26 @@ func rbdGetDeviceList(ctx context.Context, accessType string) ([]rbdDeviceInfo,
return rbdDeviceList, nil
}
// findDeviceMappingImage finds a devicePath, if available, based on image spec (pool/image) on the node.
func findDeviceMappingImage(ctx context.Context, pool, image string, useNbdDriver bool) (string, bool) {
// findDeviceMappingImage finds a devicePath, if available, based on image spec (pool/{namespace/}image) on the node.
func findDeviceMappingImage(ctx context.Context, pool, namespace, image string, useNbdDriver bool) (string, bool) {
accessType := accessTypeKRbd
if useNbdDriver {
accessType = accessTypeNbd
}
imageSpec := fmt.Sprintf("%s/%s", pool, image)
if namespace != "" {
imageSpec = fmt.Sprintf("%s/%s/%s", pool, namespace, image)
}
rbdDeviceList, err := rbdGetDeviceList(ctx, accessType)
if err != nil {
klog.Warningf(util.Log(ctx, "failed to determine if image (%s/%s) is mapped to a device (%v)"), pool, image, err)
klog.Warningf(util.Log(ctx, "failed to determine if image (%s) is mapped to a device (%v)"), imageSpec, err)
return "", false
}
for _, device := range rbdDeviceList {
if device.Name == image && device.Pool == pool {
if device.Name == image && device.Pool == pool && device.RadosNamespace == namespace {
return device.Device, true
}
}
@ -138,13 +146,13 @@ func findDeviceMappingImage(ctx context.Context, pool, image string, useNbdDrive
}
// Stat a path, if it doesn't exist, retry maxRetries times.
func waitForPath(ctx context.Context, pool, image string, maxRetries int, useNbdDriver bool) (string, bool) {
func waitForPath(ctx context.Context, pool, namespace, image string, maxRetries int, useNbdDriver bool) (string, bool) {
for i := 0; i < maxRetries; i++ {
if i != 0 {
time.Sleep(time.Second)
}
device, found := findDeviceMappingImage(ctx, pool, image, useNbdDriver)
device, found := findDeviceMappingImage(ctx, pool, namespace, image, useNbdDriver)
if found {
return device, found
}
@ -182,7 +190,7 @@ func attachRBDImage(ctx context.Context, volOptions *rbdVolume, cr *util.Credent
useNBD = true
}
devicePath, found := waitForPath(ctx, volOptions.Pool, image, 1, useNBD)
devicePath, found := waitForPath(ctx, volOptions.Pool, volOptions.RadosNamespace, image, 1, useNBD)
if !found {
backoff := wait.Backoff{
Duration: rbdImageWatcherInitDelay,

12
internal/rbd/rbd_journal.go
View File

@ -117,7 +117,7 @@ func checkSnapCloneExists(ctx context.Context, parentVol *rbdVolume, rbdSnap *rb
return false, err
}
j, err := snapJournal.Connect(rbdSnap.Monitors, cr)
j, err := snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
if err != nil {
return false, err
}
@ -242,7 +242,7 @@ func (rv *rbdVolume) Exists(ctx context.Context, parentVol *rbdVolume) (bool, er
kmsID = rv.KMS.GetID()
}
j, err := volJournal.Connect(rv.Monitors, rv.conn.Creds)
j, err := volJournal.Connect(rv.Monitors, rv.RadosNamespace, rv.conn.Creds)
if err != nil {
return false, err
}
@ -345,7 +345,7 @@ func reserveSnap(ctx context.Context, rbdSnap *rbdSnapshot, rbdVol *rbdVolume, c
return err
}
j, err := snapJournal.Connect(rbdSnap.Monitors, cr)
j, err := snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
if err != nil {
return err
}
@ -423,7 +423,7 @@ func reserveVol(ctx context.Context, rbdVol *rbdVolume, rbdSnap *rbdSnapshot, cr
kmsID = rbdVol.KMS.GetID()
}
j, err := volJournal.Connect(rbdVol.Monitors, cr)
j, err := volJournal.Connect(rbdVol.Monitors, rbdVol.RadosNamespace, cr)
if err != nil {
return err
}
@ -450,7 +450,7 @@ func reserveVol(ctx context.Context, rbdVol *rbdVolume, rbdSnap *rbdSnapshot, cr
// undoSnapReservation is a helper routine to undo a name reservation for rbdSnapshot.
func undoSnapReservation(ctx context.Context, rbdSnap *rbdSnapshot, cr *util.Credentials) error {
j, err := snapJournal.Connect(rbdSnap.Monitors, cr)
j, err := snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
if err != nil {
return err
}
@ -465,7 +465,7 @@ func undoSnapReservation(ctx context.Context, rbdSnap *rbdSnapshot, cr *util.Cre
// undoVolReservation is a helper routine to undo a name reservation for rbdVolume.
func undoVolReservation(ctx context.Context, rbdVol *rbdVolume, cr *util.Credentials) error {
j, err := volJournal.Connect(rbdVol.Monitors, cr)
j, err := volJournal.Connect(rbdVol.Monitors, rbdVol.RadosNamespace, cr)
if err != nil {
return err
}

40
internal/rbd/rbd_util.go
View File

@ -86,6 +86,7 @@ type rbdVolume struct {
JournalPool string
Pool string `json:"pool"`
DataPool string
RadosNamespace string
ImageID string
ParentName string
imageFeatureSet librbd.FeatureSet
@ -129,6 +130,7 @@ type rbdSnapshot struct {
Monitors string
JournalPool string
Pool string
RadosNamespace string
CreatedAt *timestamp.Timestamp
SizeBytes int64
ClusterID string
@ -165,13 +167,19 @@ func (rv *rbdVolume) Destroy() {
}
}
// String returns the image-spec (pool/image) format of the image.
// String returns the image-spec (pool/{namespace/}image) format of the image.
func (rv *rbdVolume) String() string {
if rv.RadosNamespace != "" {
return fmt.Sprintf("%s/%s/%s", rv.Pool, rv.RadosNamespace, rv.RbdImageName)
}
return fmt.Sprintf("%s/%s", rv.Pool, rv.RbdImageName)
}
// String returns the snap-spec (pool/image@snap) format of the snapshot.
// String returns the snap-spec (pool/{namespace/}image@snap) format of the snapshot.
func (rs *rbdSnapshot) String() string {
if rs.RadosNamespace != "" {
return fmt.Sprintf("%s/%s/%s@%s", rs.Pool, rs.RadosNamespace, rs.RbdImageName, rs.RbdSnapName)
}
return fmt.Sprintf("%s/%s@%s", rs.Pool, rs.RbdImageName, rs.RbdSnapName)
}
@ -228,6 +236,7 @@ func (rv *rbdVolume) openIoctx() error {
return err
}
ioctx.SetNamespace(rv.RadosNamespace)
rv.ioctx = ioctx
return nil
@ -485,6 +494,7 @@ func (rv *rbdVolume) hasFeature(feature uint64) bool {
func (rv *rbdVolume) checkImageChainHasFeature(ctx context.Context, feature uint64) (bool, error) {
vol := rbdVolume{
Pool: rv.Pool,
RadosNamespace: rv.RadosNamespace,
Monitors: rv.Monitors,
RbdImageName: rv.RbdImageName,
conn: rv.conn,
@ -543,7 +553,12 @@ func genSnapFromSnapID(ctx context.Context, rbdSnap *rbdSnapshot, snapshotID str
}
rbdSnap.JournalPool = rbdSnap.Pool
j, err := snapJournal.Connect(rbdSnap.Monitors, cr)
rbdSnap.RadosNamespace, err = util.RadosNamespace(csiConfigFile, rbdSnap.ClusterID)
if err != nil {
return err
}
j, err := snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
if err != nil {
return err
}
@ -611,7 +626,12 @@ func genVolFromVolID(ctx context.Context, volumeID string, cr *util.Credentials,
}
rbdVol.JournalPool = rbdVol.Pool
j, err := volJournal.Connect(rbdVol.Monitors, cr)
rbdVol.RadosNamespace, err = util.RadosNamespace(csiConfigFile, rbdVol.ClusterID)
if err != nil {
return nil, err
}
j, err := volJournal.Connect(rbdVol.Monitors, rbdVol.RadosNamespace, cr)
if err != nil {
return rbdVol, err
}
@ -690,6 +710,10 @@ func genVolFromVolumeOptions(ctx context.Context, volOptions, credentials map[st
return nil, err
}
rbdVol.RadosNamespace, err = util.RadosNamespace(csiConfigFile, rbdVol.ClusterID)
if err != nil {
return nil, err
}
// if no image features is provided, it results in empty string
// which disable all RBD image features as we expected
@ -742,6 +766,7 @@ func genSnapFromOptions(ctx context.Context, rbdVol *rbdVolume, snapOptions map[
rbdSnap := &rbdSnapshot{}
rbdSnap.Pool = rbdVol.Pool
rbdSnap.JournalPool = rbdVol.JournalPool
rbdSnap.RadosNamespace = rbdVol.RadosNamespace
rbdSnap.Monitors, rbdSnap.ClusterID, err = util.GetMonsAndClusterID(snapOptions)
if err != nil {
@ -953,6 +978,7 @@ func (rv *rbdVolume) checkSnapExists(rbdSnap *rbdSnapshot) error {
type rbdImageMetadataStash struct {
Version int `json:"Version"`
Pool string `json:"pool"`
RadosNamespace string `json:"radosNamespace"`
ImageName string `json:"image"`
NbdAccess bool `json:"accessType"`
Encrypted bool `json:"encrypted"`
@ -961,8 +987,11 @@ type rbdImageMetadataStash struct {
// file name in which image metadata is stashed.
const stashFileName = "image-meta.json"
// spec returns the image-spec (pool/image) format of the image.
// spec returns the image-spec (pool/{namespace/}image) format of the image.
func (ri *rbdImageMetadataStash) String() string {
if ri.RadosNamespace != "" {
return fmt.Sprintf("%s/%s/%s", ri.Pool, ri.RadosNamespace, ri.ImageName)
}
return fmt.Sprintf("%s/%s", ri.Pool, ri.ImageName)
}
@ -973,6 +1002,7 @@ func stashRBDImageMetadata(volOptions *rbdVolume, path string) error {
// there are no checks for this at present
Version: 2, // nolint:gomnd // number specifies version.
Pool: volOptions.Pool,
RadosNamespace: volOptions.RadosNamespace,
ImageName: volOptions.RbdImageName,
Encrypted: volOptions.Encrypted,
}

1
internal/rbd/snapshot.go
View File

@ -88,6 +88,7 @@ func generateVolFromSnap(rbdSnap *rbdSnapshot) *rbdVolume {
vol.Monitors = rbdSnap.Monitors
vol.Pool = rbdSnap.Pool
vol.JournalPool = rbdSnap.JournalPool
vol.RadosNamespace = rbdSnap.RadosNamespace
vol.RbdImageName = rbdSnap.RbdSnapName
vol.ImageID = rbdSnap.ImageID
return vol

12
internal/util/csiconfig.go
View File

@ -37,6 +37,8 @@ const (
type ClusterInfo struct {
// ClusterID is used for unique identification
ClusterID string `json:"clusterID"`
// Namespace is the namespace in the pool
RadosNamespace string `json:"radosNamespace"`
// Monitors is monitor list for corresponding cluster ID
Monitors []string `json:"monitors"`
// CephFS contains CephFS specific options
@ -50,6 +52,7 @@ type ClusterInfo struct {
// [
// {
// "clusterID": "<cluster-id>",
// "namespace": "<namespace>",
// "monitors":
// [
// "<monitor-value>",
@ -100,6 +103,15 @@ func Mons(pathToConfig, clusterID string) (string, error) {
return strings.Join(cluster.Monitors, ","), nil
}
// RadosNamespace returns the namespace for the given clusterID.
func RadosNamespace(pathToConfig, clusterID string) (string, error) {
cluster, err := readClusterInfo(pathToConfig, clusterID)
if err != nil {
return "", err
}
return cluster.RadosNamespace, nil
}
// CephFSSubvolumeGroup returns the subvolumeGroup for CephFS volumes. If not set, it returns the default value "csi".
func CephFSSubvolumeGroup(pathToConfig, clusterID string) (string, error) {
cluster, err := readClusterInfo(pathToConfig, clusterID)