mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 00:10:20 +00:00
89b326c896
return a proper error message to the user when the subvolume has the snapshots and it cannot be removed until the snapshots on the subvolume have to be deleted. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
288 lines
8.5 KiB
Go
288 lines
8.5 KiB
Go
/*
|
|
Copyright 2018 The Ceph-CSI Authors.
|
|
|
|
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 cephfs
|
|
|
|
import (
|
|
"context"
|
|
"path"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/ceph/ceph-csi/internal/util"
|
|
)
|
|
|
|
var (
|
|
// clusterAdditionalInfo contains information regarding if resize is
|
|
// supported in the particular cluster and subvolumegroup is
|
|
// created or not.
|
|
// Subvolumegroup creation and volume resize decisions are
|
|
// taken through this additional cluster information.
|
|
clusterAdditionalInfo = make(map[string]*localClusterState)
|
|
)
|
|
|
|
const (
|
|
cephEntityClientPrefix = "client."
|
|
)
|
|
|
|
// Subvolume holds subvolume information.
|
|
type Subvolume struct {
|
|
BytesQuota int `json:"bytes_quota"`
|
|
DataPool string `json:"data_pool"`
|
|
Features []string `json:"features"`
|
|
GID int `json:"gid"`
|
|
Mode int `json:"mode"`
|
|
MonAddrs []string `json:"mon_addrs"`
|
|
Path string `json:"path"`
|
|
PoolNamespace string `json:"pool_namespace"`
|
|
// The subvolume "state" is based on the current state of the subvolume.
|
|
// It contains one of the following values:
|
|
// * "complete": subvolume is ready for all operations.
|
|
// * "snapshot-retained": subvolume is removed but its snapshots are retained.
|
|
State string `json:"state"`
|
|
Type string `json:"type"`
|
|
UID int `json:"uid"`
|
|
}
|
|
|
|
func getVolumeRootPathCephDeprecated(volID volumeID) string {
|
|
return path.Join("/", "csi-volumes", string(volID))
|
|
}
|
|
|
|
func getVolumeRootPathCeph(ctx context.Context, volOptions *volumeOptions, cr *util.Credentials, volID volumeID) (string, error) {
|
|
stdout, stderr, err := util.ExecCommand(
|
|
ctx,
|
|
"ceph",
|
|
"fs",
|
|
"subvolume",
|
|
"getpath",
|
|
volOptions.FsName,
|
|
string(volID),
|
|
"--group_name",
|
|
volOptions.SubvolumeGroup,
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix+cr.ID,
|
|
"--keyfile="+cr.KeyFile)
|
|
|
|
if err != nil {
|
|
util.ErrorLog(ctx, "failed to get the rootpath for the vol %s(%s) stdError %s", string(volID), err, stderr)
|
|
if strings.Contains(stderr, volumeNotFound) {
|
|
return "", util.JoinErrors(ErrVolumeNotFound, err)
|
|
}
|
|
|
|
return "", err
|
|
}
|
|
return strings.TrimSuffix(stdout, "\n"), nil
|
|
}
|
|
|
|
func getSubVolumeInfo(ctx context.Context, volOptions *volumeOptions, cr *util.Credentials, volID volumeID) (Subvolume, error) {
|
|
info := Subvolume{}
|
|
err := execCommandJSON(
|
|
ctx,
|
|
&info,
|
|
"ceph",
|
|
"fs",
|
|
"subvolume",
|
|
"info",
|
|
volOptions.FsName,
|
|
string(volID),
|
|
"--group_name",
|
|
volOptions.SubvolumeGroup,
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix+cr.ID,
|
|
"--keyfile="+cr.KeyFile)
|
|
if err != nil {
|
|
util.ErrorLog(ctx, "failed to get subvolume info for the vol %s(%s)", string(volID), err)
|
|
if strings.HasPrefix(err.Error(), volumeNotFound) {
|
|
return info, ErrVolumeNotFound
|
|
}
|
|
// Incase the error is other than invalid command return error to the caller.
|
|
if !strings.Contains(err.Error(), invalidCommand) {
|
|
return info, ErrInvalidCommand
|
|
}
|
|
|
|
return info, err
|
|
}
|
|
return info, nil
|
|
}
|
|
|
|
type localClusterState struct {
|
|
// set true if cluster supports resize functionality.
|
|
resizeSupported bool
|
|
// set true once a subvolumegroup is created
|
|
// for corresponding cluster.
|
|
subVolumeGroupCreated bool
|
|
}
|
|
|
|
func createVolume(ctx context.Context, volOptions *volumeOptions, cr *util.Credentials, volID volumeID, bytesQuota int64) error {
|
|
// verify if corresponding ClusterID key is present in the map,
|
|
// and if not, initialize with default values(false).
|
|
if _, keyPresent := clusterAdditionalInfo[volOptions.ClusterID]; !keyPresent {
|
|
clusterAdditionalInfo[volOptions.ClusterID] = &localClusterState{}
|
|
}
|
|
|
|
// create subvolumegroup if not already created for the cluster.
|
|
if !clusterAdditionalInfo[volOptions.ClusterID].subVolumeGroupCreated {
|
|
err := execCommandErr(
|
|
ctx,
|
|
"ceph",
|
|
"fs",
|
|
"subvolumegroup",
|
|
"create",
|
|
volOptions.FsName,
|
|
volOptions.SubvolumeGroup,
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix+cr.ID,
|
|
"--keyfile="+cr.KeyFile)
|
|
if err != nil {
|
|
util.ErrorLog(ctx, "failed to create subvolume group %s, for the vol %s(%s)", volOptions.SubvolumeGroup, string(volID), err)
|
|
return err
|
|
}
|
|
util.DebugLog(ctx, "cephfs: created subvolume group %s", volOptions.SubvolumeGroup)
|
|
clusterAdditionalInfo[volOptions.ClusterID].subVolumeGroupCreated = true
|
|
}
|
|
|
|
args := []string{
|
|
"fs",
|
|
"subvolume",
|
|
"create",
|
|
volOptions.FsName,
|
|
string(volID),
|
|
strconv.FormatInt(bytesQuota, 10),
|
|
"--group_name",
|
|
volOptions.SubvolumeGroup,
|
|
"--mode", "777",
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix + cr.ID,
|
|
"--keyfile=" + cr.KeyFile,
|
|
}
|
|
|
|
if volOptions.Pool != "" {
|
|
args = append(args, "--pool_layout", volOptions.Pool)
|
|
}
|
|
|
|
err := execCommandErr(
|
|
ctx,
|
|
"ceph",
|
|
args[:]...)
|
|
if err != nil {
|
|
util.ErrorLog(ctx, "failed to create subvolume %s(%s) in fs %s", string(volID), err, volOptions.FsName)
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// resizeVolume will try to use ceph fs subvolume resize command to resize the
|
|
// subvolume. If the command is not available as a fallback it will use
|
|
// CreateVolume to resize the subvolume.
|
|
func resizeVolume(ctx context.Context, volOptions *volumeOptions, cr *util.Credentials, volID volumeID, bytesQuota int64) error {
|
|
// keyPresent checks whether corresponding clusterID key is present in clusterAdditionalInfo
|
|
var keyPresent bool
|
|
// verify if corresponding ClusterID key is present in the map,
|
|
// and if not, initialize with default values(false).
|
|
if _, keyPresent = clusterAdditionalInfo[volOptions.ClusterID]; !keyPresent {
|
|
clusterAdditionalInfo[volOptions.ClusterID] = &localClusterState{}
|
|
}
|
|
// resize subvolume when either it's supported, or when corresponding
|
|
// clusterID key was not present.
|
|
if clusterAdditionalInfo[volOptions.ClusterID].resizeSupported || !keyPresent {
|
|
args := []string{
|
|
"fs",
|
|
"subvolume",
|
|
"resize",
|
|
volOptions.FsName,
|
|
string(volID),
|
|
strconv.FormatInt(bytesQuota, 10),
|
|
"--group_name",
|
|
volOptions.SubvolumeGroup,
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix + cr.ID,
|
|
"--keyfile=" + cr.KeyFile,
|
|
}
|
|
|
|
err := execCommandErr(
|
|
ctx,
|
|
"ceph",
|
|
args[:]...)
|
|
|
|
if err == nil {
|
|
clusterAdditionalInfo[volOptions.ClusterID].resizeSupported = true
|
|
return nil
|
|
}
|
|
// Incase the error is other than invalid command return error to the caller.
|
|
if !strings.Contains(err.Error(), invalidCommand) {
|
|
util.ErrorLog(ctx, "failed to resize subvolume %s(%s) in fs %s", string(volID), err, volOptions.FsName)
|
|
return err
|
|
}
|
|
}
|
|
clusterAdditionalInfo[volOptions.ClusterID].resizeSupported = false
|
|
return createVolume(ctx, volOptions, cr, volID, bytesQuota)
|
|
}
|
|
|
|
func purgeVolume(ctx context.Context, volID volumeID, cr *util.Credentials, volOptions *volumeOptions, force bool) error {
|
|
arg := []string{
|
|
"fs",
|
|
"subvolume",
|
|
"rm",
|
|
volOptions.FsName,
|
|
string(volID),
|
|
"--group_name",
|
|
volOptions.SubvolumeGroup,
|
|
"-m", volOptions.Monitors,
|
|
"-c", util.CephConfigPath,
|
|
"-n", cephEntityClientPrefix + cr.ID,
|
|
"--keyfile=" + cr.KeyFile,
|
|
}
|
|
if force {
|
|
arg = append(arg, "--force")
|
|
}
|
|
if checkSubvolumeHasFeature("snapshot-retention", volOptions.Features) {
|
|
arg = append(arg, "--retain-snapshots")
|
|
}
|
|
|
|
err := execCommandErr(ctx, "ceph", arg...)
|
|
if err != nil {
|
|
util.ErrorLog(ctx, "failed to purge subvolume %s(%s) in fs %s", string(volID), err, volOptions.FsName)
|
|
if strings.Contains(err.Error(), volumeNotEmpty) {
|
|
return util.JoinErrors(ErrVolumeHasSnapshots, err)
|
|
}
|
|
if strings.Contains(err.Error(), volumeNotFound) {
|
|
return util.JoinErrors(ErrVolumeNotFound, err)
|
|
}
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// checkSubvolumeHasFeature verifies if the referred subvolume has
|
|
// the required feature.
|
|
func checkSubvolumeHasFeature(feature string, subVolFeatures []string) bool {
|
|
// The subvolume "features" are based on the internal version of the subvolume.
|
|
// Verify if subvolume supports the required feature.
|
|
for _, subvolFeature := range subVolFeatures {
|
|
if subvolFeature == feature {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|