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controllerserver.go
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controllerserver.go
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/**
* Copyright 2019 IBM Corp.
*
* 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 scale
import (
"fmt"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/IBM/ibm-spectrum-scale-csi/driver/csiplugin/connectors"
"github.com/IBM/ibm-spectrum-scale-csi/driver/csiplugin/settings"
"github.com/IBM/ibm-spectrum-scale-csi/driver/csiplugin/utils"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/protobuf/ptypes/timestamp"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/klog/v2"
)
const (
no = "no"
yes = "yes"
notFound = "NOT_FOUND"
filesystemTypeRemote = "remote"
filesystemMounted = "mounted"
filesetUnlinkedPath = "--"
ResponseStatusUnknown = "UNKNOWN"
oneGB uint64 = 1024 * 1024 * 1024
smallestVolSize uint64 = oneGB // 1GB
defaultSnapWindow = "30" // default snapWindow for Consistency Group snapshots is 30 minutes
cgPrefixLen = 37
discoverCGFileset = "DISCOVER_CG_FILESET"
discoverCGFilesetDisabled = "DISABLED"
)
type ScaleControllerServer struct {
Driver *ScaleDriver
}
func (cs *ScaleControllerServer) IfSameVolReqInProcess(scVol *scaleVolume) (bool, error) {
capacity, volpresent := cs.Driver.reqmap[scVol.VolName]
if volpresent {
if capacity == int64(scVol.VolSize) {
return true, nil
} else {
return false, status.Error(codes.Internal, fmt.Sprintf("Volume %v present in map but requested size %v does not match with size %v in map", scVol.VolName, scVol.VolSize, capacity))
}
}
return false, nil
}
// createLWVol: Create lightweight volume - return relative path of directory created
func (cs *ScaleControllerServer) createLWVol(ctx context.Context, scVol *scaleVolume) (string, error) {
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] volume: [%v] - ControllerServer:createLWVol", loggerId, scVol.VolName)
var err error
// check if directory exist
dirExists, err := scVol.PrimaryConnector.CheckIfFileDirPresent(ctx, scVol.VolBackendFs, scVol.VolDirBasePath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to check if DirBasePath %v is present in filesystem %v. Error : %v", loggerId, scVol.VolName, scVol.VolDirBasePath, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to check if DirBasePath %v is present in filesystem %v. Error : %v", scVol.VolDirBasePath, scVol.VolBackendFs, err))
}
if !dirExists {
klog.Errorf("[%s] volume:[%v] - directory base path %v not present in filesystem %v", loggerId, scVol.VolName, scVol.VolDirBasePath, scVol.VolBackendFs)
return "", status.Error(codes.Internal, fmt.Sprintf("directory base path %v not present in filesystem %v", scVol.VolDirBasePath, scVol.VolBackendFs))
}
// create directory in the filesystem specified in storageClass
dirPath := fmt.Sprintf("%s/%s", scVol.VolDirBasePath, scVol.VolName)
klog.V(4).Infof("[%s] volume: [%v] - creating directory %v", loggerId, scVol.VolName, dirPath)
err = cs.createDirectory(ctx, scVol, scVol.VolName, dirPath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - failed to create directory %v. Error : %v", loggerId, scVol.VolName, dirPath, err)
return "", status.Error(codes.Internal, err.Error())
}
return dirPath, nil
}
//generateVolID: Generate volume ID
//VolID format for all newly created volumes (from 2.5.0 onwards):
// <storageclass_type>;<volume_type>;<cluster_id>;<filesystem_uuid>;<consistency_group>;<fileset_name>;<path>
func (cs *ScaleControllerServer) generateVolID(ctx context.Context, scVol *scaleVolume, uid string, isNewVolumeType, isShallowCopyVolume bool, targetPath string) (string, error) {
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] volume: [%v] - ControllerServer:generateVolId", loggerId, scVol.VolName)
var volID string
var storageClassType string
var volumeType string
filesetName := scVol.VolName
consistencyGroup := ""
path := ""
if !isShallowCopyVolume {
if isNewVolumeType {
primaryConn, isprimaryConnPresent := cs.Driver.connmap["primary"]
if !isprimaryConnPresent {
klog.Errorf("[%s] unable to get connector for primary cluster", loggerId)
return "", status.Error(codes.Internal, "unable to find primary cluster details in custom resource")
}
fsMountPoint, err := primaryConn.GetFilesystemMountDetails(ctx, scVol.LocalFS)
if err != nil {
return "", status.Error(codes.Internal, fmt.Sprintf("unable to get mount info for FS [%v] in cluster", scVol.LocalFS))
}
path = fmt.Sprintf("%s/%s", fsMountPoint.MountPoint, targetPath)
} else {
path = fmt.Sprintf("%s/%s", scVol.PrimarySLnkPath, scVol.VolName)
}
} else {
path = targetPath
}
klog.V(4).Infof("[%s] volume: [%v] - ControllerServer:generateVolId: targetPath: [%v]", loggerId, scVol.VolName, path)
if isNewVolumeType {
storageClassType = STORAGECLASS_ADVANCED
volumeType = FILE_DEPENDENTFILESET_VOLUME
consistencyGroup = scVol.ConsistencyGroup
} else {
storageClassType = STORAGECLASS_CLASSIC
if scVol.IsFilesetBased {
if scVol.FilesetType == independentFileset {
volumeType = FILE_INDEPENDENTFILESET_VOLUME
} else {
volumeType = FILE_DEPENDENTFILESET_VOLUME
}
} else {
volumeType = FILE_DIRECTORYBASED_VOLUME
//filesetName for LW volume is empty
filesetName = ""
}
}
if isShallowCopyVolume {
volumeType = FILE_SHALLOWCOPY_VOLUME
}
volID = fmt.Sprintf("%s;%s;%s;%s;%s;%s;%s", storageClassType, volumeType, scVol.ClusterId, uid, consistencyGroup, filesetName, path)
return volID, nil
}
// getTargetPath: retrun relative volume path from filesystem mount point
func (cs *ScaleControllerServer) getTargetPath(ctx context.Context, fsetLinkPath, fsMountPoint, volumeName string, createDataDir bool, isNewVolumeType bool) (string, error) {
if fsetLinkPath == "" || fsMountPoint == "" {
klog.Errorf("[%s] volume:[%v] - missing details to generate target path fileset junctionpath: [%v], filesystem mount point: [%v]", utils.GetLoggerId(ctx), volumeName, fsetLinkPath, fsMountPoint)
return "", fmt.Errorf("missing details to generate target path fileset junctionpath: [%v], filesystem mount point: [%v]", fsetLinkPath, fsMountPoint)
}
klog.V(4).Infof("[%s] volume: [%v] - ControllerServer:getTargetPath", utils.GetLoggerId(ctx), volumeName)
targetPath := strings.Replace(fsetLinkPath, fsMountPoint, "", 1)
if createDataDir && !isNewVolumeType {
targetPath = fmt.Sprintf("%s/%s-data", targetPath, volumeName)
}
targetPath = strings.Trim(targetPath, "!/")
return targetPath, nil
}
// createDirectory: Create directory if not present
func (cs *ScaleControllerServer) createDirectory(ctx context.Context, scVol *scaleVolume, volName string, targetPath string) error {
klog.Infof("[%s] volume: [%v] - ControllerServer:createDirectory", utils.GetLoggerId(ctx), volName)
dirExists, err := scVol.Connector.CheckIfFileDirPresent(ctx, scVol.VolBackendFs, targetPath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to check if directory path [%v] exists in filesystem [%v]. Error : %v", utils.GetLoggerId(ctx), volName, targetPath, scVol.VolBackendFs, err)
return fmt.Errorf("unable to check if directory path [%v] exists in filesystem [%v]. Error : %v", targetPath, scVol.VolBackendFs, err)
}
if !dirExists {
if scVol.VolPermissions != "" {
err = scVol.Connector.MakeDirectoryV2(ctx, scVol.VolBackendFs, targetPath, scVol.VolUid, scVol.VolGid, scVol.VolPermissions)
if err != nil {
// Directory creation failed, no cleanup will retry in next retry
klog.Errorf("[%s] volume:[%v] - unable to create directory [%v] in filesystem [%v]. Error : %v", utils.GetLoggerId(ctx), volName, targetPath, scVol.VolBackendFs, err)
return fmt.Errorf("unable to create directory [%v] in filesystem [%v]. Error : %v", targetPath, scVol.VolBackendFs, err)
}
} else {
err = scVol.Connector.MakeDirectory(ctx, scVol.VolBackendFs, targetPath, scVol.VolUid, scVol.VolGid)
if err != nil {
// Directory creation failed, no cleanup will retry in next retry
klog.Errorf("[%s] volume:[%v] - unable to create directory [%v] in filesystem [%v]. Error : %v", utils.GetLoggerId(ctx), volName, targetPath, scVol.VolBackendFs, err)
return fmt.Errorf("unable to create directory [%v] in filesystem [%v]. Error : %v", targetPath, scVol.VolBackendFs, err)
}
}
}
return nil
}
// createSoftlink: Create soft link if not present
func (cs *ScaleControllerServer) createSoftlink(ctx context.Context, scVol *scaleVolume, target string) error {
loggerId := utils.GetLoggerId(ctx)
klog.V(4).Infof("[%s] volume: [%v] - ControllerServer:createSoftlink", loggerId, scVol.VolName)
volSlnkPath := fmt.Sprintf("%s/%s", scVol.PrimarySLnkRelPath, scVol.VolName)
symLinkExists, err := scVol.PrimaryConnector.CheckIfFileDirPresent(ctx, scVol.PrimaryFS, volSlnkPath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to check if symlink path [%v] exists in filesystem [%v]. Error: %v", loggerId, scVol.VolName, volSlnkPath, scVol.PrimaryFS, err)
return fmt.Errorf("unable to check if symlink path [%v] exists in filesystem [%v]. Error: %v", volSlnkPath, scVol.PrimaryFS, err)
}
if !symLinkExists {
klog.Infof("[%s] symlink info filesystem [%v] TargetFS [%v] target Path [%v] linkPath [%v]", loggerId, scVol.PrimaryFS, scVol.LocalFS, target, volSlnkPath)
err = scVol.PrimaryConnector.CreateSymLink(ctx, scVol.PrimaryFS, scVol.LocalFS, target, volSlnkPath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - failed to create symlink [%v] in filesystem [%v], for target [%v] in filesystem [%v]. Error [%v]", loggerId, scVol.VolName, volSlnkPath, scVol.PrimaryFS, target, scVol.LocalFS, err)
return fmt.Errorf("failed to create symlink [%v] in filesystem [%v], for target [%v] in filesystem [%v]. Error [%v]", volSlnkPath, scVol.PrimaryFS, target, scVol.LocalFS, err)
}
}
return nil
}
// setQuota: Set quota if not set
func (cs *ScaleControllerServer) setQuota(ctx context.Context, scVol *scaleVolume, volName string) error {
loggerId := utils.GetLoggerId(ctx)
klog.V(4).Infof("[%s] volume: [%v] - ControllerServer:setQuota", loggerId, volName)
quota, err := scVol.Connector.ListFilesetQuota(ctx, scVol.VolBackendFs, volName)
if err != nil {
return fmt.Errorf("unable to list quota for fileset [%v] in filesystem [%v]. Error [%v]", volName, scVol.VolBackendFs, err)
}
filesetQuotaBytes, err := ConvertToBytes(quota)
if err != nil {
if strings.Contains(err.Error(), "invalid number specified") {
// Invalid number specified means quota is not set
filesetQuotaBytes = 0
} else {
return fmt.Errorf("unable to convert quota for fileset [%v] in filesystem [%v]. Error [%v]", volName, scVol.VolBackendFs, err)
}
}
if filesetQuotaBytes != scVol.VolSize {
volsiz := strconv.FormatUint(scVol.VolSize, 10)
err = scVol.Connector.SetFilesetQuota(ctx, scVol.VolBackendFs, volName, volsiz)
if err != nil {
// failed to set quota, no cleanup, next retry might be able to set quota
return fmt.Errorf("unable to set quota [%v] on fileset [%v] of FS [%v]", scVol.VolSize, volName, scVol.VolBackendFs)
}
}
return nil
}
func (cs *ScaleControllerServer) validateCG(ctx context.Context, scVol *scaleVolume) (string, error) {
loggerId := utils.GetLoggerId(ctx)
klog.V(4).Infof("[%s] Validate CG for volume [%v]", loggerId, scVol)
fsetlist, err := scVol.Connector.ListCSIIndependentFilesets(ctx, scVol.VolBackendFs)
if err != nil {
return "", err
}
var flist []string
pvcns := scVol.ConsistencyGroup[cgPrefixLen:]
for _, fset := range fsetlist {
if len(fset.FilesetName) > cgPrefixLen {
if fset.FilesetName[cgPrefixLen:] == pvcns {
flist = append(flist, fset.FilesetName)
}
}
}
klog.Infof("[%s] Filesets with namespace [%s] as suffix: [%v]", loggerId, pvcns, flist)
// no fileset with this namespace found
if len(flist) == 0 {
return scVol.ConsistencyGroup, nil
}
// multiple filesets with this namespace found
if len(flist) > 1 {
return "", status.Error(codes.Internal, fmt.Sprintf("conflicting filesets found %+v", flist))
}
// this is either local CG or Remote CG
return flist[0], nil
}
// createFilesetBasedVol: Create fileset based volume - return relative path of volume created
func (cs *ScaleControllerServer) createFilesetBasedVol(ctx context.Context, scVol *scaleVolume, isNewVolumeType bool, fsType string) (string, error) { //nolint:gocyclo,funlen
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] volume: [%v] - ControllerServer:createFilesetBasedVol", loggerId, scVol.VolName)
opt := make(map[string]interface{})
// fileset can not be created if filesystem is remote.
klog.Infof("[%s] check if volumes filesystem [%v] is remote or local for cluster [%v]", loggerId, scVol.VolBackendFs, scVol.ClusterId)
fsDetails, err := scVol.Connector.GetFilesystemDetails(ctx, scVol.VolBackendFs)
if err != nil {
if strings.Contains(err.Error(), "Invalid value in filesystemName") {
klog.Errorf("[%s] volume:[%v] - filesystem %s in not known to cluster %v. Error: %v", loggerId, scVol.VolName, scVol.VolBackendFs, scVol.ClusterId, err)
return "", status.Error(codes.Internal, fmt.Sprintf("Filesystem %s in not known to cluster %v. Error: %v", scVol.VolBackendFs, scVol.ClusterId, err))
}
klog.Errorf("[%s] volume:[%v] - unable to check type of filesystem [%v]. Error: %v", loggerId, scVol.VolName, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to check type of filesystem [%v]. Error: %v", scVol.VolBackendFs, err))
}
if fsDetails.Type == filesystemTypeRemote {
klog.Errorf("[%s] volume:[%v] - filesystem [%v] is not local to cluster [%v]", loggerId, scVol.VolName, scVol.VolBackendFs, scVol.ClusterId)
return "", status.Error(codes.Internal, fmt.Sprintf("filesystem [%v] is not local to cluster [%v]", scVol.VolBackendFs, scVol.ClusterId))
}
// if filesystem is remote, check it is mounted on remote GUI node.
if cs.Driver.primary.PrimaryCid != scVol.ClusterId {
if fsDetails.Mount.Status != filesystemMounted {
klog.Errorf("[%s] volume:[%v] - filesystem [%v] is [%v] on remote GUI of cluster [%v]", loggerId, scVol.VolName, scVol.VolBackendFs, fsDetails.Mount.Status, scVol.ClusterId)
return "", status.Error(codes.Internal, fmt.Sprintf("Filesystem %v in cluster %v is not mounted", scVol.VolBackendFs, scVol.ClusterId))
}
klog.V(4).Infof("[%s] volume:[%v] - mount point of volume filesystem [%v] on owning cluster is %v", loggerId, scVol.VolName, scVol.VolBackendFs, fsDetails.Mount.MountPoint)
}
// check if quota is enabled on volume filesystem
klog.Infof("[%s] check if quota is enabled on filesystem [%v] ", loggerId, scVol.VolBackendFs)
if scVol.VolSize != 0 {
klog.Infof("[%s] quota status on filesystem [%v] is [%t]", loggerId, scVol.VolBackendFs, fsDetails.Quota.FilesetdfEnabled)
if !fsDetails.Quota.FilesetdfEnabled {
return "", status.Error(codes.Internal, fmt.Sprintf("quota not enabled for filesystem %v of cluster %v", scVol.VolBackendFs, scVol.ClusterId))
}
}
if scVol.VolUid != "" {
opt[connectors.UserSpecifiedUid] = scVol.VolUid
}
if scVol.VolGid != "" {
opt[connectors.UserSpecifiedGid] = scVol.VolGid
}
if scVol.InodeLimit != "" {
opt[connectors.UserSpecifiedInodeLimit] = scVol.InodeLimit
} else {
var inodeLimit uint64
if scVol.VolSize > 10*oneGB {
inodeLimit = 200000
} else {
inodeLimit = 100000
}
opt[connectors.UserSpecifiedInodeLimit] = strconv.FormatUint(inodeLimit, 10)
}
if isNewVolumeType {
// For new storageClass first create independent fileset if not present
discoverCGFileset := strings.ToUpper(os.Getenv(discoverCGFileset))
klog.Infof("[%s] discoverCGFileset is : %s", loggerId, discoverCGFileset)
if discoverCGFileset != discoverCGFilesetDisabled && len(scVol.ConsistencyGroup) > cgPrefixLen {
// Check for consistencyGroup
if fsType != filesystemTypeRemote {
newcg, err := cs.validateCG(ctx, scVol)
if err != nil {
klog.Errorf("ValidateCG failed. Error: %v", err)
return "", err
}
scVol.ConsistencyGroup = newcg
}
}
indepFilesetName := scVol.ConsistencyGroup
klog.Infof("[%s] creating independent fileset for new storageClass with fileset name: [%v]", loggerId, indepFilesetName)
opt[connectors.UserSpecifiedFilesetType] = independentFileset
opt[connectors.UserSpecifiedParentFset] = ""
//Set uid and gid as 0 for CG independent fileset
opt[connectors.UserSpecifiedUid] = "0"
opt[connectors.UserSpecifiedGid] = "0"
if scVol.InodeLimit != "" {
opt[connectors.UserSpecifiedInodeLimit] = scVol.InodeLimit
} else {
opt[connectors.UserSpecifiedInodeLimit] = "1M"
// Assumption: On an average a consistency group contains 10 volumes
}
scVol.ParentFileset = ""
createDataDir := false
_, err = cs.createFilesetVol(ctx, scVol, indepFilesetName, fsDetails, opt, createDataDir, true, isNewVolumeType)
if err != nil {
klog.Errorf("[%s] volume:[%v] - failed to create independent fileset [%v] in filesystem [%v]. Error: %v", loggerId, indepFilesetName, indepFilesetName, scVol.VolBackendFs, err)
return "", err
}
klog.Infof("[%s] finished creation of independent fileset for new storageClass with fileset name: [%v]", loggerId, indepFilesetName)
// Now create dependent fileset
klog.Infof("[%s] creating dependent fileset for new storageClass with fileset name: [%v]", loggerId, scVol.VolName)
opt[connectors.UserSpecifiedFilesetType] = dependentFileset
opt[connectors.UserSpecifiedParentFset] = indepFilesetName
delete(opt, connectors.UserSpecifiedUid)
delete(opt, connectors.UserSpecifiedGid)
if scVol.VolUid != "" {
opt[connectors.UserSpecifiedUid] = scVol.VolUid
}
if scVol.VolGid != "" {
opt[connectors.UserSpecifiedGid] = scVol.VolGid
}
if scVol.VolPermissions != "" {
opt[connectors.UserSpecifiedPermissions] = scVol.VolPermissions
}
scVol.ParentFileset = indepFilesetName
createDataDir = true
filesetPath, err := cs.createFilesetVol(ctx, scVol, scVol.VolName, fsDetails, opt, createDataDir, false, isNewVolumeType)
if err != nil {
klog.Errorf("[%s] volume:[%v] - failed to create dependent fileset [%v] in filesystem [%v]. Error: %v", loggerId, scVol.VolName, scVol.VolName, scVol.VolBackendFs, err)
return "", err
}
klog.Infof("[%s] finished creation of dependent fileset for new storageClass with fileset name: [%v]", loggerId, scVol.VolName)
return filesetPath, nil
} else {
// Create volume for classic storageClass
// Check if FileSetType not specified
if scVol.FilesetType != "" {
opt[connectors.UserSpecifiedFilesetType] = scVol.FilesetType
}
if scVol.ParentFileset != "" {
opt[connectors.UserSpecifiedParentFset] = scVol.ParentFileset
}
// Create fileset
klog.Infof("[%s] creating fileset for classic storageClass with fileset name: [%v]", loggerId, scVol.VolName)
createDataDir := true
filesetPath, err := cs.createFilesetVol(ctx, scVol, scVol.VolName, fsDetails, opt, createDataDir, false, isNewVolumeType)
if err != nil {
klog.Errorf("[%s] volume:[%v] - failed to create fileset [%v] in filesystem [%v]. Error: %v", loggerId, scVol.VolName, scVol.VolName, scVol.VolBackendFs, err)
return "", err
}
klog.Infof("[%s] finished creation of fileset for classic storageClass with fileset name: [%v]", loggerId, scVol.VolName)
return filesetPath, nil
}
}
func (cs *ScaleControllerServer) createFilesetVol(ctx context.Context, scVol *scaleVolume, volName string, fsDetails connectors.FileSystem_v2, opt map[string]interface{}, createDataDir bool, isCGIndependentFset bool, isNewVolumeType bool) (string, error) { //nolint:gocyclo,funlen
// Check if fileset exist
filesetInfo, err := scVol.Connector.ListFileset(ctx, scVol.VolBackendFs, volName)
loggerId := utils.GetLoggerId(ctx)
if err != nil {
if strings.Contains(err.Error(), "Invalid value in 'filesetName'") {
// This means fileset is not present, create it
fseterr := scVol.Connector.CreateFileset(ctx, scVol.VolBackendFs, volName, opt)
if fseterr != nil {
// fileset creation failed return without cleanup
klog.Errorf("[%s] volume:[%v] - unable to create fileset [%v] in filesystem [%v]. Error: %v", loggerId, volName, volName, scVol.VolBackendFs, fseterr)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to create fileset [%v] in filesystem [%v]. Error: %v", volName, scVol.VolBackendFs, fseterr))
}
// list fileset and update filesetInfo
filesetInfo, err = scVol.Connector.ListFileset(ctx, scVol.VolBackendFs, volName)
if err != nil {
// fileset got created but listing failed, return without cleanup
klog.Errorf("[%s] volume:[%v] - unable to list newly created fileset [%v] in filesystem [%v]. Error: %v", loggerId, volName, volName, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to list newly created fileset [%v] in filesystem [%v]. Error: %v", volName, scVol.VolBackendFs, err))
}
} else {
klog.Errorf("[%s] volume:[%v] - unable to list fileset [%v] in filesystem [%v]. Error: %v", loggerId, volName, volName, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to list fileset [%v] in filesystem [%v]. Error: %v", volName, scVol.VolBackendFs, err))
}
} else {
// fileset is present. Confirm if creator is IBM Storage Scale CSI driver and fileset type is correct.
if filesetInfo.Config.Comment != connectors.FilesetComment {
klog.Errorf("[%s] volume:[%v] - the fileset is not created by IBM Storage Scale CSI driver. Cannot use it.", loggerId, volName)
return "", status.Error(codes.Internal, fmt.Sprintf("volume:[%v] - the fileset is not created by IBM Storage Scale CSI driver. Cannot use it.", volName))
}
listFilesetType := ""
if filesetInfo.Config.IsInodeSpaceOwner {
listFilesetType = independentFileset
} else {
listFilesetType = dependentFileset
}
if opt[connectors.UserSpecifiedFilesetType] != listFilesetType {
klog.Errorf("[%s] volume:[%v] - the fileset type is not as expected, got type: [%s], expected type: [%s]", loggerId, volName, listFilesetType, opt[connectors.UserSpecifiedFilesetType])
return "", status.Error(codes.Internal, fmt.Sprintf("volume:[%v] - the fileset type is not as expected, got type: [%s], expected type: [%s]", volName, listFilesetType, opt[connectors.UserSpecifiedFilesetType]))
}
}
// fileset is present/created. Confirm if fileset is linked
if (filesetInfo.Config.Path == "") || (filesetInfo.Config.Path == filesetUnlinkedPath) {
// this means not linked, link it
var junctionPath string
junctionPath = fmt.Sprintf("%s/%s", fsDetails.Mount.MountPoint, volName)
if scVol.ParentFileset != "" {
parentfilesetInfo, err := scVol.Connector.ListFileset(ctx, scVol.VolBackendFs, scVol.ParentFileset)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to get details of parent fileset [%v] in filesystem [%v]. Error: %v", loggerId, volName, scVol.ParentFileset, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("volume:[%v] - unable to get details of parent fileset [%v] in filesystem [%v]. Error: %v", volName, scVol.ParentFileset, scVol.VolBackendFs, err))
}
if (parentfilesetInfo.Config.Path == "") || (parentfilesetInfo.Config.Path == filesetUnlinkedPath) {
klog.Errorf("[%s] volume:[%v] - parent fileset [%v] is not linked", loggerId, volName, scVol.ParentFileset)
return "", status.Error(codes.Internal, fmt.Sprintf("volume:[%v] - parent fileset [%v] is not linked", volName, scVol.ParentFileset))
}
junctionPath = fmt.Sprintf("%s/%s", parentfilesetInfo.Config.Path, volName)
}
err := scVol.Connector.LinkFileset(ctx, scVol.VolBackendFs, volName, junctionPath)
if err != nil {
klog.Errorf("[%s] volume:[%v] - linking fileset [%v] in filesystem [%v] at path [%v] failed. Error: %v", loggerId, volName, volName, scVol.VolBackendFs, junctionPath, err)
return "", status.Error(codes.Internal, fmt.Sprintf("linking fileset [%v] in filesystem [%v] at path [%v] failed. Error: %v", volName, scVol.VolBackendFs, junctionPath, err))
}
// update fileset details
filesetInfo, err = scVol.Connector.ListFileset(ctx, scVol.VolBackendFs, volName)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to list fileset [%v] in filesystem [%v] after linking. Error: %v", loggerId, volName, volName, scVol.VolBackendFs, err)
return "", status.Error(codes.Internal, fmt.Sprintf("unable to list fileset [%v] in filesystem [%v] after linking. Error: %v", volName, scVol.VolBackendFs, err))
}
}
targetBasePath := ""
if !isCGIndependentFset {
if scVol.VolSize != 0 {
err = cs.setQuota(ctx, scVol, volName)
if err != nil {
return "", status.Error(codes.Internal, err.Error())
}
}
targetBasePath, err = cs.getTargetPath(ctx, filesetInfo.Config.Path, fsDetails.Mount.MountPoint, volName, createDataDir, isNewVolumeType)
if err != nil {
return "", status.Error(codes.Internal, err.Error())
}
err = cs.createDirectory(ctx, scVol, volName, targetBasePath)
if err != nil {
return "", status.Error(codes.Internal, err.Error())
}
}
return targetBasePath, nil
}
func (cs *ScaleControllerServer) getVolumeSizeInBytes(req *csi.CreateVolumeRequest) int64 {
capacity := req.GetCapacityRange()
return capacity.GetRequiredBytes()
}
func (cs *ScaleControllerServer) getConnFromClusterID(ctx context.Context, cid string) (connectors.SpectrumScaleConnector, error) {
loggerId := utils.GetLoggerId(ctx)
connector, isConnPresent := cs.Driver.connmap[cid]
if isConnPresent {
return connector, nil
}
klog.Errorf("[%s] unable to get connector for cluster ID %v", loggerId, cid)
return nil, status.Error(codes.Internal, fmt.Sprintf("unable to find cluster [%v] details in custom resource", cid))
}
// checkSCSupportedParams checks if given CreateVolume request parameter keys
// are supported by IBM Storage Scale CSI and returns ("", true) if all parameter
// keys are supported, otherwise returns (<list of invalid keys seperated by
// comma>, false)
func checkSCSupportedParams(params map[string]string) (string, bool) {
var invalidParams []string
for k := range params {
switch k {
case "csi.storage.k8s.io/pv/name", "csi.storage.k8s.io/pvc/name",
"csi.storage.k8s.io/pvc/namespace", "storage.kubernetes.io/csiProvisionerIdentity",
"volBackendFs", "volDirBasePath", "uid", "gid", "permissions",
"clusterId", "filesetType", "parentFileset", "inodeLimit", "nodeClass",
"version", "tier", "compression", "consistencyGroup", "shared":
// These are valid parameters, do nothing here
default:
invalidParams = append(invalidParams, k)
}
}
if len(invalidParams) == 0 {
return "", true
}
return strings.Join(invalidParams[:], ", "), false
}
func (cs *ScaleControllerServer) getPrimaryClusterDetails(ctx context.Context) (connectors.SpectrumScaleConnector, string, string, string, string, string, error) {
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] getPrimaryClusterDetails", loggerId)
symlinkDirAbsolutePath := ""
symlinkDirRelativePath := ""
primaryConn := cs.Driver.connmap["primary"]
primaryFS := cs.Driver.primary.GetPrimaryFs()
primaryFset := cs.Driver.primary.PrimaryFset
// check if primary filesystem exists
fsMountInfo, err := primaryConn.GetFilesystemMountDetails(ctx, primaryFS)
if err != nil {
klog.Errorf("[%s] Failed to get details of primary filesystem %s", loggerId, primaryFS)
return nil, "", "", "", "", "", err
}
primaryFSMount := fsMountInfo.MountPoint
// If primary fset is not specified, then use default
if primaryFset == "" {
primaryFset = defaultPrimaryFileset
}
symlinkDirRelativePath = primaryFset + "/" + symlinkDir
symlinkDirAbsolutePath = fsMountInfo.MountPoint + "/" + symlinkDirRelativePath
klog.Infof("[%s] symlinkDirPath [%s], symlinkDirRelPath [%s]", loggerId, symlinkDirAbsolutePath, symlinkDirRelativePath)
return primaryConn, symlinkDirRelativePath, primaryFS, primaryFSMount, symlinkDirAbsolutePath, cs.Driver.primary.PrimaryCid, err
}
func (cs *ScaleControllerServer) getPrimaryFSMountPoint(ctx context.Context) (string, error) {
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] getPrimaryFSMountPoint", loggerId)
primaryConn := cs.Driver.connmap["primary"]
primaryFS := cs.Driver.primary.GetPrimaryFs()
fsMountInfo, err := primaryConn.GetFilesystemMountDetails(ctx, primaryFS)
if err != nil {
klog.Errorf("[%s] Failed to get details of primary filesystem %s:Error: %v", loggerId, primaryFS, err)
return "", status.Error(codes.NotFound, fmt.Sprintf("Failed to get details of primary filesystem %s. Error: %v", primaryFS, err))
}
return fsMountInfo.MountPoint, nil
}
// CreateVolume - Create Volume
func (cs *ScaleControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) { //nolint:gocyclo,funlen
loggerId := utils.GetLoggerId(ctx)
klog.Infof("[%s] CreateVolume req: %v", loggerId, req)
if err := cs.Driver.ValidateControllerServiceRequest(ctx, csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME); err != nil {
klog.Errorf("[%s] invalid create volume req: %v", loggerId, req)
return nil, status.Error(codes.Internal, fmt.Sprintf("CreateVolume ValidateControllerServiceRequest failed: %v", err))
}
if req == nil {
return nil, status.Error(codes.InvalidArgument, "Request cannot be empty")
}
volName := req.GetName()
if volName == "" {
return nil, status.Error(codes.InvalidArgument, "Volume Name is a required field")
}
/* Get volume size in bytes */
volSize := cs.getVolumeSizeInBytes(req)
reqCapabilities := req.GetVolumeCapabilities()
if reqCapabilities == nil {
return nil, status.Error(codes.InvalidArgument, "Volume Capabilities is a required field")
}
for _, reqCap := range reqCapabilities {
if reqCap.GetBlock() != nil {
return nil, status.Error(codes.Unimplemented, "Block Volume is not supported")
}
if reqCap.GetMount().GetMountFlags() != nil {
return nil, status.Error(codes.Unimplemented, "mountOptions are not supported")
}
}
invalidParams, allValid := checkSCSupportedParams(req.GetParameters())
if !allValid {
return nil, status.Error(codes.InvalidArgument, "The Parameter(s) not supported in storageClass: "+invalidParams)
}
scaleVol, isNewVolumeType, primaryClusterID, err := cs.setScaleVolume(ctx, req, volName, volSize)
if err != nil {
return nil, err
}
isSnapSource, isVolSource, volSrc, snapIdMembers, srcVolumeIDMembers, err := cs.getVolORSnapMembers(ctx, req, volName)
if err != nil {
return nil, err
}
isShallowCopyVolume := false
for _, reqCap := range reqCapabilities {
if reqCap.GetAccessMode().GetMode() == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY {
if isSnapSource {
klog.Infof("[%s] Requested pvc is a shallow copy volume", loggerId)
isShallowCopyVolume = true
} else {
return nil, status.Error(codes.Unimplemented, "Volume source with Access Mode ReadOnlyMany is not supported")
}
}
}
if srcVolumeIDMembers.VolType != FILE_SHALLOWCOPY_VOLUME {
err = cs.checkFileSetLink(ctx, scaleVol.PrimaryConnector, scaleVol, scaleVol.PrimaryFS, cs.Driver.primary.PrimaryFset, "primary")
if err != nil {
return nil, err
}
}
volFsInfo, err := checkVolumeFilesystemMountOnPrimary(ctx, scaleVol)
if err != nil {
return nil, err
}
err = cs.setScaleVolumeWithRemoteCluster(ctx, scaleVol, volFsInfo, primaryClusterID)
if err != nil {
return nil, err
}
assembledScaleversion, err := cs.assembledScaleVersion(ctx, scaleVol.Connector)
if err != nil {
return nil, status.Error(codes.Internal, fmt.Sprintf("IBM Storage Scale version check for permissions failed with error %s", err))
}
if isNewVolumeType {
if err := cs.checkCGSupport(ctx, scaleVol.Connector, assembledScaleversion); err != nil {
return nil, err
}
}
if isVolSource {
err = cs.validateCloneRequest(ctx, scaleVol, &srcVolumeIDMembers, scaleVol, primaryClusterID, volFsInfo, assembledScaleversion)
if err != nil {
klog.Errorf("[%s] volume:[%v] - Error in source volume validation [%v]", loggerId, volName, err)
return nil, err
}
}
if isSnapSource {
err = cs.validateSnapId(ctx, scaleVol, &snapIdMembers, scaleVol, primaryClusterID, assembledScaleversion)
if err != nil {
klog.Errorf("[%s] volume:[%v] - Error in source snapshot validation [%v]", loggerId, volName, err)
return nil, err
}
if isShallowCopyVolume {
err = cs.validateShallowCopyVolume(ctx, &snapIdMembers, scaleVol)
if err != nil {
klog.Errorf("[%s] volume:[%v] - Error in validating shallow copy volume", loggerId, volName)
return nil, status.Error(codes.Internal, fmt.Sprintf("CreateVolume ValidateShallowCopyVolume failed: %v", err))
}
}
}
var shallowCopyTargetPath string
if isShallowCopyVolume {
err = cs.createSnapshotDir(ctx, &snapIdMembers, scaleVol, isNewVolumeType)
if err != nil {
return nil, err
}
if isNewVolumeType {
shallowCopyTargetPath = fmt.Sprintf("%s/%s/.snapshots/%s/%s", volFsInfo.Mount.MountPoint, snapIdMembers.ConsistencyGroup, snapIdMembers.SnapName, snapIdMembers.FsetName)
} else {
shallowCopyTargetPath = fmt.Sprintf("%s/%s/.snapshots/%s/%s", volFsInfo.Mount.MountPoint, snapIdMembers.FsetName, snapIdMembers.SnapName, snapIdMembers.Path)
}
volID, volIDErr := cs.generateVolID(ctx, scaleVol, volFsInfo.UUID, isNewVolumeType, isShallowCopyVolume, shallowCopyTargetPath)
if volIDErr != nil {
return nil, volIDErr
}
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
VolumeId: volID,
CapacityBytes: int64(scaleVol.VolSize),
VolumeContext: req.GetParameters(),
ContentSource: volSrc,
},
}, nil
}
klog.Infof("[%s] volume:[%v] - IBM Storage Scale volume create params : %v\n", loggerId, scaleVol.VolName, scaleVol)
if scaleVol.IsFilesetBased && scaleVol.Compression != "" {
klog.Infof("[%s] createvolume: compression is enabled: changing volume name", loggerId)
scaleVol.VolName = fmt.Sprintf("%s-COMPRESS%scsi", scaleVol.VolName, strings.ToUpper(scaleVol.Compression))
}
if scaleVol.IsFilesetBased && scaleVol.Tier != "" {
err = cs.checkVolTierAndSetFilesystemPolicy(ctx, scaleVol, volFsInfo, primaryClusterID)
if err != nil {
return nil, err
}
}
volReqInProcess, err := cs.IfSameVolReqInProcess(scaleVol)
if err != nil {
return nil, err
}
if volReqInProcess {
klog.Errorf("[%s] volume:[%v] - volume creation already in process ", loggerId, scaleVol.VolName)
return nil, status.Error(codes.Aborted, fmt.Sprintf("volume creation already in process : %v", scaleVol.VolName))
}
volResponse, err := cs.getCopyJobStatus(ctx, req, volSrc, scaleVol, isVolSource, isSnapSource, snapIdMembers)
if err != nil {
return nil, err
} else if volResponse != nil {
return volResponse, nil
}
if scaleVol.VolPermissions != "" {
versionCheck := checkMinScaleVersionValid(assembledScaleversion, "5112")
if !versionCheck {
return nil, status.Error(codes.Internal, "the minimum required IBM Storage Scale version for permissions support with CSI is 5.1.1-2")
}
}
/* Update driver map with new volume. Make sure to defer delete */
cs.Driver.reqmap[scaleVol.VolName] = int64(scaleVol.VolSize)
defer delete(cs.Driver.reqmap, scaleVol.VolName)
var targetPath string
if scaleVol.IsFilesetBased {
targetPath, err = cs.createFilesetBasedVol(ctx, scaleVol, isNewVolumeType, volFsInfo.Type)
} else {
targetPath, err = cs.createLWVol(ctx, scaleVol)
}
if err != nil {
return nil, err
}
if !isNewVolumeType {
// Create symbolic link if not present
err = cs.createSoftlink(ctx, scaleVol, targetPath)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
}
volID, volIDErr := cs.generateVolID(ctx, scaleVol, volFsInfo.UUID, isNewVolumeType, isShallowCopyVolume, targetPath)
if volIDErr != nil {
return nil, volIDErr
}
if isVolSource {
if srcVolumeIDMembers.VolType == FILE_SHALLOWCOPY_VOLUME {
err = cs.copyShallowVolumeContent(ctx, scaleVol, srcVolumeIDMembers, volFsInfo, targetPath, volID)
if err != nil {
klog.Errorf("[%s] CreateVolume [%s]: [%v]", loggerId, volName, err)
return nil, err
}
} else {
err = cs.copyVolumeContent(ctx, scaleVol, srcVolumeIDMembers, volFsInfo, targetPath, volID)
if err != nil {
klog.Errorf("[%s] CreateVolume [%s]: [%v]", loggerId, volName, err)
return nil, err
}
}
}
if isSnapSource {
err = cs.copySnapContent(ctx, scaleVol, snapIdMembers, volFsInfo, targetPath, volID)
if err != nil {
klog.Errorf("[%s] createVolume failed while copying snapshot content [%s]: [%v]", loggerId, volName, err)
return nil, err
}
}
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
VolumeId: volID,
CapacityBytes: int64(scaleVol.VolSize),
VolumeContext: req.GetParameters(),
ContentSource: volSrc,
},
}, nil
}
func (cs *ScaleControllerServer) setScaleVolume(ctx context.Context, req *csi.CreateVolumeRequest, volName string, volSize int64) (*scaleVolume, bool, string, error) {
scaleVol, err := getScaleVolumeOptions(ctx, req.GetParameters())
if err != nil {
return nil, false, "", err
}
isNewVolumeType := false
if scaleVol.StorageClassType == STORAGECLASS_ADVANCED {
isNewVolumeType = true
}
scaleVol.VolName = volName
if scaleVol.IsFilesetBased && uint64(volSize) < smallestVolSize {
scaleVol.VolSize = smallestVolSize
} else {
scaleVol.VolSize = uint64(volSize)
}
/* Get details for Primary Cluster */
primaryConn, symlinkDirRelativePath, primaryFS, primaryFSMount, symlinkDirAbsolutePath, primaryClusterID, err := cs.getPrimaryClusterDetails(ctx)
if err != nil {
return nil, isNewVolumeType, "", err
}
scaleVol.PrimaryConnector = primaryConn
scaleVol.PrimarySLnkRelPath = symlinkDirRelativePath
scaleVol.PrimaryFS = primaryFS
scaleVol.PrimaryFSMount = primaryFSMount
scaleVol.PrimarySLnkPath = symlinkDirAbsolutePath
return scaleVol, isNewVolumeType, primaryClusterID, nil
}
func (cs *ScaleControllerServer) getVolORSnapMembers(ctx context.Context, req *csi.CreateVolumeRequest, volName string) (bool, bool, *csi.VolumeContentSource, scaleSnapId, scaleVolId, error) {
loggerId := utils.GetLoggerId(ctx)
volSrc := req.GetVolumeContentSource()
isSnapSource := false
isVolSource := false
snapIdMembers := scaleSnapId{}
srcVolumeIDMembers := scaleVolId{}
var err error
if volSrc != nil {
srcVolume := volSrc.GetVolume()
if srcVolume != nil {
srcVolumeID := srcVolume.GetVolumeId()
srcVolumeIDMembers, err = getVolIDMembers(srcVolumeID)
if err != nil {
klog.Errorf("[%s] volume:[%v] - Invalid Volume ID %s [%v]", loggerId, volName, srcVolumeID, err)
return isSnapSource, isVolSource, volSrc, snapIdMembers, srcVolumeIDMembers, status.Error(codes.NotFound, fmt.Sprintf("volume source volume is not found: %v", err))
}
isVolSource = true
} else {
srcSnap := volSrc.GetSnapshot()
if srcSnap != nil {
snapId := srcSnap.GetSnapshotId()
snapIdMembers, err = cs.GetSnapIdMembers(snapId)
if err != nil {
klog.Errorf("[%s] volume:[%v] - Invalid snapshot ID %s [%v]", loggerId, volName, snapId, err)
return isSnapSource, isVolSource, volSrc, snapIdMembers, srcVolumeIDMembers, status.Error(codes.NotFound, fmt.Sprintf("volume source snapshot is not found: %v", err))
}
isSnapSource = true
}
}
}
return isSnapSource, isVolSource, volSrc, snapIdMembers, srcVolumeIDMembers, nil
}
func (cs *ScaleControllerServer) checkFileSetLink(ctx context.Context, connector connectors.SpectrumScaleConnector, scaleVol *scaleVolume, filesystem string, fileset string, primaryOrSource string) error {
loggerId := utils.GetLoggerId(ctx)
// Check if Primary Fileset is linked
//primaryFileset := cs.Driver.primary.PrimaryFset
klog.Infof("[%s] volume:[%v] - check if %s fileset [%v] is linked", loggerId, scaleVol.VolName, primaryOrSource, fileset)
isFilesetLinked, err := connector.IsFilesetLinked(ctx, filesystem, fileset)
if err != nil {
klog.Errorf("[%s] volume:[%v] - unable to get details of %s fileset [%v]. Error : [%v]", loggerId, scaleVol.VolName, primaryOrSource, fileset, err)
return status.Error(codes.Internal, fmt.Sprintf("unable to get details of %s fileset link information for [%v]. Error : [%v]", primaryOrSource, fileset, err))
}
if !isFilesetLinked {
klog.Errorf("[%s] volume:[%v] - %s [%v] is not linked", loggerId, scaleVol.VolName, fileset)
return status.Error(codes.Internal, fmt.Sprintf("%s fileset [%v] is not linked", primaryOrSource, fileset))
}
return nil
}
func checkVolumeFilesystemMountOnPrimary(ctx context.Context, scaleVol *scaleVolume) (connectors.FileSystem_v2, error) {
loggerId := utils.GetLoggerId(ctx)
klog.V(6).Infof("[%s] volume:[%v] - check if volume filesystem [%v] is mounted on GUI node of Primary cluster", loggerId, scaleVol.VolName, scaleVol.VolBackendFs)
volFsInfo, err := scaleVol.PrimaryConnector.GetFilesystemDetails(ctx, scaleVol.VolBackendFs)
if err != nil {
if strings.Contains(err.Error(), "Invalid value in filesystemName") {
klog.Errorf("[%s] volume:[%v] - filesystem %s in not known to primary cluster. Error: %v", loggerId, scaleVol.VolName, scaleVol.VolBackendFs, err)
return volFsInfo, status.Error(codes.Internal, fmt.Sprintf("filesystem %s in not known to primary cluster. Error: %v", scaleVol.VolBackendFs, err))
}
klog.Errorf("[%s] volume:[%v] - unable to get details for filesystem [%v] in Primary cluster. Error: %v", loggerId, scaleVol.VolName, scaleVol.VolBackendFs, err)
return volFsInfo, status.Error(codes.Internal, fmt.Sprintf("unable to get details for filesystem [%v] in Primary cluster. Error: %v", scaleVol.VolBackendFs, err))
}
if volFsInfo.Mount.Status != filesystemMounted {
klog.Errorf("[%s] volume:[%v] - volume filesystem %s is not mounted on GUI node of Primary cluster", loggerId, scaleVol.VolName, scaleVol.VolBackendFs)
return volFsInfo, status.Error(codes.Internal, fmt.Sprintf("volume filesystem %s is not mounted on GUI node of Primary cluster", scaleVol.VolBackendFs))
}
klog.V(6).Infof("[%s] volume:[%v] - mount point of volume filesystem [%v] is on Primary cluster is %v", loggerId, scaleVol.VolName, scaleVol.VolBackendFs, volFsInfo.Mount.MountPoint)
return volFsInfo, nil
}
func (cs *ScaleControllerServer) setScaleVolumeWithRemoteCluster(ctx context.Context, scaleVol *scaleVolume, volFsInfo connectors.FileSystem_v2, primaryClusterID string) error {
loggerId := utils.GetLoggerId(ctx)
/* scaleVol.VolBackendFs will always be local cluster FS. So we need to find a
remote cluster FS in case local cluster FS is remotely mounted. We will find local FS RemoteDeviceName on local cluster, will use that as VolBackendFs and create fileset on that FS. */
if scaleVol.IsFilesetBased {
remoteDeviceName := volFsInfo.Mount.RemoteDeviceName
scaleVol.LocalFS = scaleVol.VolBackendFs
scaleVol.VolBackendFs = getRemoteFsName(remoteDeviceName)
} else {
scaleVol.LocalFS = scaleVol.VolBackendFs
}
// LocalFs is name of filesystem on K8s cluster
// VolBackendFs is changed to name on remote cluster in case of fileset based provisioning
var remoteClusterID string
var err error
if scaleVol.ClusterId == "" && volFsInfo.Type == filesystemTypeRemote {
klog.Infof("[%s] filesystem %s is remotely mounted, getting cluster ID information of the owning cluster.", loggerId, volFsInfo.Name)
clusterName := strings.Split(volFsInfo.Mount.RemoteDeviceName, ":")[0]
if remoteClusterID, err = cs.getRemoteClusterID(ctx, clusterName); err != nil {
klog.Errorf("[%s] error in getting remote cluster ID for cluster [%s], error [%v]", loggerId, clusterName, err)
return err
}
klog.V(6).Infof("[%s] cluster ID for remote cluster %s is %s", loggerId, clusterName, remoteClusterID)