mirror of
https://github.com/ceph/ceph-csi.git
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journal: move voljournal.go to a new package
This new journal package isolates journal logic from the rest of util and helps draw bright lines between what is a generic utility function and what is csi journal logic. Done partly as preparation for making use of go-ceph in journal. No functional changes are made except to update references to allow the code to compile. Signed-off-by: John Mulligan <jmulligan@redhat.com>
This commit is contained in:
John Mulligan
mergify[bot]
parent
22d1476bba
commit
c8271fe64c
@ -20,6 +20,7 @@ import (
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"k8s.io/klog"
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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"github.com/ceph/ceph-csi/internal/journal"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/container-storage-interface/spec/lib/go/csi"
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@ -55,7 +56,7 @@ var (
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// volJournal is used to maintain RADOS based journals for CO generated
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// VolumeName to backing CephFS subvolumes
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volJournal *util.CSIJournal
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volJournal *journal.CSIJournal
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)
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// NewDriver returns new ceph driver
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@ -109,7 +110,7 @@ func (fs *Driver) Run(conf *util.Config, cachePersister util.CachePersister) {
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CSIInstanceID = conf.InstanceID
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}
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// Get an instance of the volume journal
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volJournal = util.NewCSIVolumeJournal()
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volJournal = journal.NewCSIVolumeJournal()
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// Update keys with CSI instance suffix
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volJournal.SetCSIDirectorySuffix(CSIInstanceID)
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@ -14,7 +14,7 @@ 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 util
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package journal
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import (
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"context"
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@ -23,6 +23,8 @@ import (
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"fmt"
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"strings"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/pborman/uuid"
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"github.com/pkg/errors"
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"k8s.io/klog"
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@ -219,13 +221,13 @@ Return values:
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there was no reservation found
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- error: non-nil in case of any errors
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*/
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func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr *Credentials,
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func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr *util.Credentials,
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journalPool, reqName, namePrefix, parentName, kmsConfig string) (*ImageData, error) {
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var (
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snapSource bool
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objUUID string
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savedImagePool string
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savedImagePoolID int64 = InvalidPoolID
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savedImagePoolID int64 = util.InvalidPoolID
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)
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if parentName != "" {
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@ -237,13 +239,13 @@ func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr
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}
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// check if request name is already part of the directory omap
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objUUIDAndPool, err := GetOMapValue(ctx, monitors, cr, journalPool, cj.namespace, cj.csiDirectory,
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objUUIDAndPool, err := util.GetOMapValue(ctx, monitors, cr, journalPool, cj.namespace, cj.csiDirectory,
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cj.csiNameKeyPrefix+reqName)
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if err != nil {
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// error should specifically be not found, for volume to be absent, any other error
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// is not conclusive, and we should not proceed
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switch err.(type) {
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case ErrKeyNotFound, ErrPoolNotFound:
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case util.ErrKeyNotFound, util.ErrPoolNotFound:
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return nil, nil
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}
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return nil, err
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@ -265,9 +267,9 @@ func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr
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}
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savedImagePoolID = int64(binary.BigEndian.Uint64(buf64))
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savedImagePool, err = GetPoolName(ctx, monitors, cr, savedImagePoolID)
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savedImagePool, err = util.GetPoolName(ctx, monitors, cr, savedImagePoolID)
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if err != nil {
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if _, ok := err.(ErrPoolNotFound); ok {
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if _, ok := err.(util.ErrPoolNotFound); ok {
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err = cj.UndoReservation(ctx, monitors, cr, journalPool, "", "", reqName)
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}
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return nil, err
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@ -279,7 +281,7 @@ func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr
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if err != nil {
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// error should specifically be not found, for image to be absent, any other error
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// is not conclusive, and we should not proceed
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if _, ok := err.(ErrKeyNotFound); ok {
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if _, ok := err.(util.ErrKeyNotFound); ok {
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err = cj.UndoReservation(ctx, monitors, cr, journalPool, savedImagePool,
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cj.GetNameForUUID(namePrefix, objUUID, snapSource), reqName)
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}
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@ -315,7 +317,7 @@ func (cj *CSIJournal) CheckReservation(ctx context.Context, monitors string, cr
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err = fmt.Errorf("snapname points to different volume, request name (%s)"+
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" source name (%s) saved source name (%s)",
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reqName, parentName, savedImageAttributes.SourceName)
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return nil, ErrSnapNameConflict{reqName, err}
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return nil, util.NewErrSnapNameConflict(reqName, err)
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}
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}
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@ -344,7 +346,7 @@ Input arguments:
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- volJournalPool: Pool name that holds the image/subvolume and the per-image journal (may be
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different if image is created in a topology constrained pool)
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*/
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func (cj *CSIJournal) UndoReservation(ctx context.Context, monitors string, cr *Credentials,
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func (cj *CSIJournal) UndoReservation(ctx context.Context, monitors string, cr *util.Credentials,
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csiJournalPool, volJournalPool, volName, reqName string) error {
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// delete volume UUID omap (first, inverse of create order)
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@ -358,20 +360,20 @@ func (cj *CSIJournal) UndoReservation(ctx context.Context, monitors string, cr *
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return fmt.Errorf("failed parsing UUID in %s", volName)
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}
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err := RemoveObject(ctx, monitors, cr, volJournalPool, cj.namespace, cj.cephUUIDDirectoryPrefix+imageUUID)
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err := util.RemoveObject(ctx, monitors, cr, volJournalPool, cj.namespace, cj.cephUUIDDirectoryPrefix+imageUUID)
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if err != nil {
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if _, ok := err.(ErrObjectNotFound); !ok {
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klog.Errorf(Log(ctx, "failed removing oMap %s (%s)"), cj.cephUUIDDirectoryPrefix+imageUUID, err)
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if _, ok := err.(util.ErrObjectNotFound); !ok {
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klog.Errorf(util.Log(ctx, "failed removing oMap %s (%s)"), cj.cephUUIDDirectoryPrefix+imageUUID, err)
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return err
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}
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}
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}
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// delete the request name key (last, inverse of create order)
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err := RemoveOMapKey(ctx, monitors, cr, csiJournalPool, cj.namespace, cj.csiDirectory,
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err := util.RemoveOMapKey(ctx, monitors, cr, csiJournalPool, cj.namespace, cj.csiDirectory,
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cj.csiNameKeyPrefix+reqName)
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if err != nil {
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klog.Errorf(Log(ctx, "failed removing oMap key %s (%s)"), cj.csiNameKeyPrefix+reqName, err)
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klog.Errorf(util.Log(ctx, "failed removing oMap key %s (%s)"), cj.csiNameKeyPrefix+reqName, err)
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return err
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}
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@ -381,7 +383,7 @@ func (cj *CSIJournal) UndoReservation(ctx context.Context, monitors string, cr *
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// reserveOMapName creates an omap with passed in oMapNamePrefix and a generated <uuid>.
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// It ensures generated omap name does not already exist and if conflicts are detected, a set
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// number of retires with newer uuids are attempted before returning an error
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func reserveOMapName(ctx context.Context, monitors string, cr *Credentials, pool, namespace, oMapNamePrefix string) (string, error) {
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func reserveOMapName(ctx context.Context, monitors string, cr *util.Credentials, pool, namespace, oMapNamePrefix string) (string, error) {
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var iterUUID string
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maxAttempts := 5
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@ -390,12 +392,12 @@ func reserveOMapName(ctx context.Context, monitors string, cr *Credentials, pool
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// generate a uuid for the image name
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iterUUID = uuid.NewUUID().String()
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err := CreateObject(ctx, monitors, cr, pool, namespace, oMapNamePrefix+iterUUID)
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err := util.CreateObject(ctx, monitors, cr, pool, namespace, oMapNamePrefix+iterUUID)
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if err != nil {
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if _, ok := err.(ErrObjectExists); ok {
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if _, ok := err.(util.ErrObjectExists); ok {
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attempt++
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// try again with a different uuid, for maxAttempts tries
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klog.V(4).Infof(Log(ctx, "uuid (%s) conflict detected, retrying (attempt %d of %d)"),
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klog.V(4).Infof(util.Log(ctx, "uuid (%s) conflict detected, retrying (attempt %d of %d)"),
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iterUUID, attempt, maxAttempts)
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continue
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}
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@ -433,7 +435,7 @@ Return values:
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- string: Contains the image name that was reserved for the passed in reqName
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- error: non-nil in case of any errors
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*/
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func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Credentials,
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func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *util.Credentials,
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journalPool string, journalPoolID int64,
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imagePool string, imagePoolID int64,
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reqName, namePrefix, parentName, kmsConf string) (string, string, error) {
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@ -464,7 +466,7 @@ func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Cred
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// Create request name (csiNameKey) key in csiDirectory and store the UUID based
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// volume name and optionally the image pool location into it
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if journalPool != imagePool && imagePoolID != InvalidPoolID {
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if journalPool != imagePool && imagePoolID != util.InvalidPoolID {
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buf64 := make([]byte, 8)
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binary.BigEndian.PutUint64(buf64, uint64(imagePoolID))
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poolIDEncodedHex := hex.EncodeToString(buf64)
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@ -473,17 +475,17 @@ func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Cred
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nameKeyVal = volUUID
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}
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err = SetOMapKeyValue(ctx, monitors, cr, journalPool, cj.namespace, cj.csiDirectory,
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err = util.SetOMapKeyValue(ctx, monitors, cr, journalPool, cj.namespace, cj.csiDirectory,
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cj.csiNameKeyPrefix+reqName, nameKeyVal)
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if err != nil {
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return "", "", err
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}
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defer func() {
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if err != nil {
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klog.Warningf(Log(ctx, "reservation failed for volume: %s"), reqName)
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klog.Warningf(util.Log(ctx, "reservation failed for volume: %s"), reqName)
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errDefer := cj.UndoReservation(ctx, monitors, cr, imagePool, journalPool, imageName, reqName)
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if errDefer != nil {
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klog.Warningf(Log(ctx, "failed undoing reservation of volume: %s (%v)"), reqName, errDefer)
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klog.Warningf(util.Log(ctx, "failed undoing reservation of volume: %s (%v)"), reqName, errDefer)
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}
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}
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}()
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@ -492,14 +494,14 @@ func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Cred
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// and also CSI journal pool, when only the VolumeID is passed in (e.g DeleteVolume/DeleteSnapshot,
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// VolID during CreateSnapshot).
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// Update UUID directory to store CSI request name
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err = SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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err = util.SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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cj.csiNameKey, reqName)
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if err != nil {
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return "", "", err
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}
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// Update UUID directory to store image name
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err = SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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err = util.SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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cj.csiImageKey, imageName)
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if err != nil {
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return "", "", err
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@ -507,20 +509,20 @@ func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Cred
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// Update UUID directory to store encryption values
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if kmsConf != "" {
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err = SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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err = util.SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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cj.encryptKMSKey, kmsConf)
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if err != nil {
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return "", "", err
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}
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}
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if journalPool != imagePool && journalPoolID != InvalidPoolID {
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if journalPool != imagePool && journalPoolID != util.InvalidPoolID {
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buf64 := make([]byte, 8)
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binary.BigEndian.PutUint64(buf64, uint64(journalPoolID))
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journalPoolIDStr := hex.EncodeToString(buf64)
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// Update UUID directory to store CSI journal pool name (prefer ID instead of name to be pool rename proof)
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err = SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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err = util.SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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cj.csiJournalPool, journalPoolIDStr)
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if err != nil {
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return "", "", err
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@ -529,7 +531,7 @@ func (cj *CSIJournal) ReserveName(ctx context.Context, monitors string, cr *Cred
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if snapSource {
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// Update UUID directory to store source volume UUID in case of snapshots
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err = SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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err = util.SetOMapKeyValue(ctx, monitors, cr, imagePool, cj.namespace, cj.cephUUIDDirectoryPrefix+volUUID,
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cj.cephSnapSourceKey, parentName)
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if err != nil {
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return "", "", err
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@ -549,7 +551,7 @@ type ImageAttributes struct {
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}
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// GetImageAttributes fetches all keys and their values, from a UUID directory, returning ImageAttributes structure
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func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, cr *Credentials, pool, objectUUID string, snapSource bool) (*ImageAttributes, error) {
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func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, cr *util.Credentials, pool, objectUUID string, snapSource bool) (*ImageAttributes, error) {
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var (
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err error
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imageAttributes *ImageAttributes = &ImageAttributes{}
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@ -561,7 +563,7 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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}
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// TODO: fetch all omap vals in one call, than make multiple listomapvals
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imageAttributes.RequestName, err = GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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imageAttributes.RequestName, err = util.GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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cj.cephUUIDDirectoryPrefix+objectUUID, cj.csiNameKey)
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if err != nil {
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return nil, err
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@ -569,7 +571,7 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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// image key was added at some point, so not all volumes will have this key set
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// when ceph-csi was upgraded
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imageAttributes.ImageName, err = GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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imageAttributes.ImageName, err = util.GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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cj.cephUUIDDirectoryPrefix+objectUUID, cj.csiImageKey)
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if err != nil {
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// if the key was not found, assume the default key + UUID
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@ -577,7 +579,7 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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switch err.(type) {
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default:
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return nil, err
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case ErrKeyNotFound, ErrPoolNotFound:
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case util.ErrKeyNotFound, util.ErrPoolNotFound:
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}
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if snapSource {
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@ -587,7 +589,7 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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}
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}
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imageAttributes.KmsID, err = GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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imageAttributes.KmsID, err = util.GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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cj.cephUUIDDirectoryPrefix+objectUUID, cj.encryptKMSKey)
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if err != nil {
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// ErrKeyNotFound means no encryption KMS was used
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@ -595,17 +597,17 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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default:
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return nil, fmt.Errorf("OMapVal for %s/%s failed to get encryption KMS value: %s",
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pool, cj.cephUUIDDirectoryPrefix+objectUUID, err)
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case ErrKeyNotFound, ErrPoolNotFound:
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case util.ErrKeyNotFound, util.ErrPoolNotFound:
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}
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}
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journalPoolIDStr, err := GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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journalPoolIDStr, err := util.GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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cj.cephUUIDDirectoryPrefix+objectUUID, cj.csiJournalPool)
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if err != nil {
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if _, ok := err.(ErrKeyNotFound); !ok {
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if _, ok := err.(util.ErrKeyNotFound); !ok {
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return nil, err
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}
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imageAttributes.JournalPoolID = InvalidPoolID
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imageAttributes.JournalPoolID = util.InvalidPoolID
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} else {
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var buf64 []byte
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buf64, err = hex.DecodeString(journalPoolIDStr)
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@ -616,7 +618,7 @@ func (cj *CSIJournal) GetImageAttributes(ctx context.Context, monitors string, c
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}
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if snapSource {
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imageAttributes.SourceName, err = GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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imageAttributes.SourceName, err = util.GetOMapValue(ctx, monitors, cr, pool, cj.namespace,
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cj.cephUUIDDirectoryPrefix+objectUUID, cj.cephSnapSourceKey)
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if err != nil {
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return nil, err
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@ -18,6 +18,7 @@ package rbd
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import (
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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"github.com/ceph/ceph-csi/internal/journal"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/container-storage-interface/spec/lib/go/csi"
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@ -50,8 +51,8 @@ var (
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|
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// volJournal and snapJournal are used to maintain RADOS based journals for CO generated
|
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// VolumeName to backing RBD images
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volJournal *util.CSIJournal
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snapJournal *util.CSIJournal
|
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volJournal *journal.CSIJournal
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snapJournal *journal.CSIJournal
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)
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// NewDriver returns new rbd driver
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@ -103,8 +104,8 @@ func (r *Driver) Run(conf *util.Config, cachePersister util.CachePersister) {
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}
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// Get an instance of the volume and snapshot journal keys
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volJournal = util.NewCSIVolumeJournal()
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snapJournal = util.NewCSISnapshotJournal()
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volJournal = journal.NewCSIVolumeJournal()
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snapJournal = journal.NewCSISnapshotJournal()
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// Update keys with CSI instance suffix
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volJournal.SetCSIDirectorySuffix(CSIInstanceID)
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@ -24,6 +24,7 @@ import (
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"strings"
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|
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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"github.com/ceph/ceph-csi/internal/journal"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/container-storage-interface/spec/lib/go/csi"
|
||||
@ -145,7 +146,7 @@ func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVol
|
||||
}
|
||||
default:
|
||||
var vi util.CSIIdentifier
|
||||
var imageAttributes *util.ImageAttributes
|
||||
var imageAttributes *journal.ImageAttributes
|
||||
err = vi.DecomposeCSIID(volID)
|
||||
if err != nil {
|
||||
err = fmt.Errorf("error decoding volume ID (%s) (%s)", err, volID)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user