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cephfs: use new 'ceph fs resize' command when available
Use ceph fs resize command when its available in the cluster.if its not available fallback to old style of resizing the subvolume ceph change log:https://docs.ceph.com/docs/master/releases/nautilus/#v14-2-8-nautilus Fixes #1002 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
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@ -361,7 +361,7 @@ func (cs *ControllerServer) ControllerExpandVolume(ctx context.Context, req *csi
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RoundOffSize := util.RoundOffBytes(req.GetCapacityRange().GetRequiredBytes())
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if err = createVolume(ctx, volOptions, cr, volumeID(volIdentifier.FsSubvolName), RoundOffSize); err != nil {
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if err = resizeVolume(ctx, volOptions, cr, volumeID(volIdentifier.FsSubvolName), RoundOffSize); err != nil {
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klog.Errorf(util.Log(ctx, "failed to expand volume %s: %v"), volumeID(volIdentifier.FsSubvolName), err)
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return nil, status.Error(codes.Internal, err.Error())
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}
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@ -34,6 +34,12 @@ var (
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// Subvolume group create gets called every time the plugin loads, though it doesn't result in error
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// its unnecessary
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cephfsInit = false
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// resizeSupportedList stores the mapping for clusterID and resize is
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// supported in the particular cluster
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resizeSupportedList = make(map[string]bool)
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inValidCommmand = "no valid command found"
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)
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func getCephRootVolumePathLocalDeprecated(volID volumeID) string {
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@ -134,6 +140,48 @@ func createVolume(ctx context.Context, volOptions *volumeOptions, cr *util.Crede
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return nil
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}
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// resizeVolume will try to use ceph fs subvolume resize command to resize the
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// subvolume. If the command is not available as a fallback it will use
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// CreateVolume to resize the subvolume.
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func resizeVolume(ctx context.Context, volOptions *volumeOptions, cr *util.Credentials, volID volumeID, bytesQuota int64) error {
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supported := false
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ok := false
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if supported, ok = resizeSupportedList[volOptions.ClusterID]; supported || !ok {
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args := []string{
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"fs",
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"subvolume",
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"resize",
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volOptions.FsName,
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string(volID),
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strconv.FormatInt(bytesQuota, 10),
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"--group_name",
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volOptions.SubvolumeGroup,
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"-m", volOptions.Monitors,
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"-c", util.CephConfigPath,
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"-n", cephEntityClientPrefix + cr.ID,
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"--keyfile=" + cr.KeyFile,
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}
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err := execCommandErr(
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ctx,
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"ceph",
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args[:]...)
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if err == nil {
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resizeSupportedList[volOptions.ClusterID] = true
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return nil
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}
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// Incase the error is other than invalid command return error to the caller.
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if !strings.Contains(err.Error(), inValidCommmand) {
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klog.Errorf(util.Log(ctx, "failed to resize subvolume %s(%s) in fs %s"), string(volID), err, volOptions.FsName)
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return err
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}
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}
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resizeSupportedList[volOptions.ClusterID] = false
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return createVolume(ctx, volOptions, cr, volID, bytesQuota)
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}
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func mountCephRoot(ctx context.Context, volID volumeID, volOptions *volumeOptions, adminCr *util.Credentials) error {
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cephRoot := getCephRootPathLocalDeprecated(volID)
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