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rbd: use ioctx locks for key rotation

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Signed-off-by: Niraj Yadav <niryadav@redhat.com>
This commit is contained in:
Niraj Yadav 2024-07-26 09:15:21 +05:30 committed by mergify[bot]
parent 0bed833ef7
commit 4445247690
2 changed files with 24 additions and 8 deletions
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8
internal/csi-addons/rbd/encryptionkeyrotation.go
View File

@ -20,12 +20,10 @@ import (
"context"
"errors"
csicommon "github.com/ceph/ceph-csi/internal/csi-common"
"github.com/ceph/ceph-csi/internal/rbd"
"github.com/ceph/ceph-csi/internal/util"
"github.com/ceph/ceph-csi/internal/util/log"
"github.com/container-storage-interface/spec/lib/go/csi"
ekr "github.com/csi-addons/spec/lib/go/encryptionkeyrotation"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
@ -55,12 +53,6 @@ func (ekrs *EncryptionKeyRotationServer) EncryptionKeyRotate(
return nil, status.Error(codes.InvalidArgument, "empty volume ID in request")
}
// Block key rotation for RWX/ROX volumes
_, isMultiNode := csicommon.IsBlockMultiNode([]*csi.VolumeCapability{req.GetVolumeCapability()})
if isMultiNode {
return nil, status.Error(codes.Unimplemented, "multi-node key rotation is not supported")
}
if acquired := ekrs.volLock.TryAcquire(volID); !acquired {
return nil, status.Errorf(codes.Aborted, util.VolumeOperationAlreadyExistsFmt, volID)
}

24
internal/rbd/encryption.go
View File

@ -22,9 +22,11 @@ import (
"fmt"
"strconv"
"strings"
"time"
kmsapi "github.com/ceph/ceph-csi/internal/kms"
"github.com/ceph/ceph-csi/internal/util"
"github.com/ceph/ceph-csi/internal/util/lock"
"github.com/ceph/ceph-csi/internal/util/log"
librbd "github.com/ceph/go-ceph/rbd"
@ -463,6 +465,28 @@ func (rv *rbdVolume) RotateEncryptionKey(ctx context.Context) error {
return errors.New("key rotation not supported for unencrypted device")
}
// Call open Ioctx to create a new ioctx object
// if the obj already exists, no error is returned
err = rv.openIoctx()
if err != nil {
return fmt.Errorf("failed to open ioctx, err: %w", err)
}
// Lock params
lockName := rv.VolID + "-mutexlock"
lockDesc := "Key rotation mutex lock for " + rv.VolID
lockDuration := 3 * time.Minute
lockCookie := rv.VolID + "-enc-key-rotate"
// Acquire the exclusive lock based on vol id
lck := lock.NewLock(rv.ioctx, rv.VolID, lockName, lockCookie, lockDesc, lockDuration)
err = lck.LockExclusive(ctx)
if err != nil {
return err
}
defer lck.Unlock(ctx)
log.DebugLog(ctx, "acquired ioctx lock for vol id: %s", rv.VolID)
// Get the device path for the underlying image
useNbd := rv.Mounter == rbdNbdMounter && hasNBD
devicePath, found := waitForPath(ctx, rv.Pool, rv.RadosNamespace, rv.RbdImageName, 1, useNbd)