mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-09 16:00:22 +00:00
cleanup: move mount functions to new pkg
moved fuse and kernel mount functions to a new package. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
parent
b1ef842640
commit
34a21cdbe3
@ -40,8 +40,6 @@ import (
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var clusterAdditionalInfo = make(map[string]*localClusterState)
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var clusterAdditionalInfo = make(map[string]*localClusterState)
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const (
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const (
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cephEntityClientPrefix = "client."
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// modeAllRWX can be used for setting permissions to Read-Write-eXecute
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// modeAllRWX can be used for setting permissions to Read-Write-eXecute
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// for User, Group and Other.
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// for User, Group and Other.
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modeAllRWX = 0o777
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modeAllRWX = 0o777
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@ -1,310 +0,0 @@
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/*
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Copyright 2018 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 core
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import (
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"context"
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"errors"
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"fmt"
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"os"
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"os/exec"
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"regexp"
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"strconv"
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"strings"
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"sync"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/ceph/ceph-csi/internal/util/log"
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)
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const (
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volumeMounterFuse = "fuse"
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volumeMounterKernel = "kernel"
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netDev = "_netdev"
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)
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var (
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availableMounters []string
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// maps a mountpoint to PID of its FUSE daemon.
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fusePidMap = make(map[string]int)
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fusePidMapMtx sync.Mutex
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fusePidRx = regexp.MustCompile(`(?m)^ceph-fuse\[(.+)\]: starting fuse$`)
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// nolint:gomnd // numbers specify Kernel versions.
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quotaSupport = []util.KernelVersion{
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{
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Version: 4,
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PatchLevel: 17,
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SubLevel: 0,
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ExtraVersion: 0, Distribution: "",
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Backport: false,
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}, // standard 4.17+ versions
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{
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Version: 3,
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PatchLevel: 10,
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SubLevel: 0,
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ExtraVersion: 1062,
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Distribution: ".el7",
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Backport: true,
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}, // RHEL-7.7
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}
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)
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func execCommandErr(ctx context.Context, program string, args ...string) error {
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_, _, err := util.ExecCommand(ctx, program, args...)
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return err
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}
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// Load available ceph mounters installed on system into availableMounters
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// Called from driver.go's Run().
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func LoadAvailableMounters(conf *util.Config) error {
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// #nosec
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fuseMounterProbe := exec.Command("ceph-fuse", "--version")
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// #nosec
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kernelMounterProbe := exec.Command("mount.ceph")
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err := kernelMounterProbe.Run()
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if err != nil {
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log.ErrorLogMsg("failed to run mount.ceph %v", err)
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} else {
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// fetch the current running kernel info
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release, kvErr := util.GetKernelVersion()
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if kvErr != nil {
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return kvErr
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}
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if conf.ForceKernelCephFS || util.CheckKernelSupport(release, quotaSupport) {
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log.DefaultLog("loaded mounter: %s", volumeMounterKernel)
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availableMounters = append(availableMounters, volumeMounterKernel)
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} else {
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log.DefaultLog("kernel version < 4.17 might not support quota feature, hence not loading kernel client")
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}
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}
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err = fuseMounterProbe.Run()
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if err != nil {
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log.ErrorLogMsg("failed to run ceph-fuse %v", err)
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} else {
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log.DefaultLog("loaded mounter: %s", volumeMounterFuse)
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availableMounters = append(availableMounters, volumeMounterFuse)
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}
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if len(availableMounters) == 0 {
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return errors.New("no ceph mounters found on system")
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}
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return nil
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}
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type VolumeMounter interface {
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Mount(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error
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Name() string
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}
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func NewMounter(volOptions *VolumeOptions) (VolumeMounter, error) {
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// Get the mounter from the configuration
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wantMounter := volOptions.Mounter
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// Verify that it's available
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var chosenMounter string
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for _, availMounter := range availableMounters {
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if availMounter == wantMounter {
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chosenMounter = wantMounter
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break
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}
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}
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if chosenMounter == "" {
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// Otherwise pick whatever is left
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chosenMounter = availableMounters[0]
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log.DebugLogMsg("requested mounter: %s, chosen mounter: %s", wantMounter, chosenMounter)
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}
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// Create the mounter
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switch chosenMounter {
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case volumeMounterFuse:
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return &FuseMounter{}, nil
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case volumeMounterKernel:
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return &KernelMounter{}, nil
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}
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return nil, fmt.Errorf("unknown mounter '%s'", chosenMounter)
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}
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type FuseMounter struct{}
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func mountFuse(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error {
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args := []string{
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mountPoint,
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"-m", volOptions.Monitors,
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"-c", util.CephConfigPath,
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"-n", cephEntityClientPrefix + cr.ID, "--keyfile=" + cr.KeyFile,
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"-r", volOptions.RootPath,
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}
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fmo := "nonempty"
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if volOptions.FuseMountOptions != "" {
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fmo += "," + strings.TrimSpace(volOptions.FuseMountOptions)
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}
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args = append(args, "-o", fmo)
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if volOptions.FsName != "" {
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args = append(args, "--client_mds_namespace="+volOptions.FsName)
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}
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_, stderr, err := util.ExecCommand(ctx, "ceph-fuse", args[:]...)
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if err != nil {
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return fmt.Errorf("%w stderr: %s", err, stderr)
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}
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// Parse the output:
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// We need "starting fuse" meaning the mount is ok
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// and PID of the ceph-fuse daemon for unmount
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match := fusePidRx.FindSubmatch([]byte(stderr))
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// validMatchLength is set to 2 as match is expected
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// to have 2 items, starting fuse and PID of the fuse daemon
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const validMatchLength = 2
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if len(match) != validMatchLength {
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return fmt.Errorf("ceph-fuse failed: %s", stderr)
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}
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pid, err := strconv.Atoi(string(match[1]))
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if err != nil {
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return fmt.Errorf("failed to parse FUSE daemon PID: %w", err)
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}
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fusePidMapMtx.Lock()
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fusePidMap[mountPoint] = pid
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fusePidMapMtx.Unlock()
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return nil
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}
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func (m *FuseMounter) Mount(
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ctx context.Context,
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mountPoint string,
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cr *util.Credentials,
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volOptions *VolumeOptions) error {
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if err := util.CreateMountPoint(mountPoint); err != nil {
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return err
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}
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return mountFuse(ctx, mountPoint, cr, volOptions)
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}
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func (m *FuseMounter) Name() string { return "Ceph FUSE driver" }
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type KernelMounter struct{}
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func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error {
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if err := execCommandErr(ctx, "modprobe", "ceph"); err != nil {
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return err
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}
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args := []string{
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"-t", "ceph",
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fmt.Sprintf("%s:%s", volOptions.Monitors, volOptions.RootPath),
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mountPoint,
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}
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optionsStr := fmt.Sprintf("name=%s,secretfile=%s", cr.ID, cr.KeyFile)
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mdsNamespace := ""
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if volOptions.FsName != "" {
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mdsNamespace = fmt.Sprintf("mds_namespace=%s", volOptions.FsName)
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}
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optionsStr = util.MountOptionsAdd(optionsStr, mdsNamespace, volOptions.KernelMountOptions, netDev)
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args = append(args, "-o", optionsStr)
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_, stderr, err := util.ExecCommand(ctx, "mount", args[:]...)
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if err != nil {
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return fmt.Errorf("%w stderr: %s", err, stderr)
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}
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return err
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}
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func (m *KernelMounter) Mount(
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ctx context.Context,
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mountPoint string,
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cr *util.Credentials,
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volOptions *VolumeOptions) error {
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if err := util.CreateMountPoint(mountPoint); err != nil {
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return err
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}
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return mountKernel(ctx, mountPoint, cr, volOptions)
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}
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func (m *KernelMounter) Name() string { return "Ceph kernel client" }
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func BindMount(ctx context.Context, from, to string, readOnly bool, mntOptions []string) error {
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mntOptionSli := strings.Join(mntOptions, ",")
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if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, from, to); err != nil {
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return fmt.Errorf("failed to bind-mount %s to %s: %w", from, to, err)
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}
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if readOnly {
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mntOptionSli = util.MountOptionsAdd(mntOptionSli, "remount")
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if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, to); err != nil {
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return fmt.Errorf("failed read-only remount of %s: %w", to, err)
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}
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}
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return nil
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}
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func UnmountVolume(ctx context.Context, mountPoint string) error {
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if _, stderr, err := util.ExecCommand(ctx, "umount", mountPoint); err != nil {
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err = fmt.Errorf("%w stderr: %s", err, stderr)
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if strings.Contains(err.Error(), fmt.Sprintf("umount: %s: not mounted", mountPoint)) ||
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strings.Contains(err.Error(), "No such file or directory") {
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return nil
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}
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return err
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}
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fusePidMapMtx.Lock()
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pid, ok := fusePidMap[mountPoint]
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if ok {
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delete(fusePidMap, mountPoint)
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}
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fusePidMapMtx.Unlock()
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if ok {
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p, err := os.FindProcess(pid)
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if err != nil {
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log.WarningLog(ctx, "failed to find process %d: %v", pid, err)
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} else {
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if _, err = p.Wait(); err != nil {
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log.WarningLog(ctx, "%d is not a child process: %v", pid, err)
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}
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}
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}
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return nil
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}
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@ -123,8 +123,8 @@ func extractOption(dest *string, optionLabel string, options map[string]string)
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func validateMounter(m string) error {
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func validateMounter(m string) error {
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switch m {
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switch m {
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case volumeMounterFuse:
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case "fuse":
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case volumeMounterKernel:
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case "kernel":
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default:
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default:
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return fmt.Errorf("unknown mounter '%s'. Valid options are 'fuse' and 'kernel'", m)
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return fmt.Errorf("unknown mounter '%s'. Valid options are 'fuse' and 'kernel'", m)
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}
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}
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@ -18,6 +18,7 @@ package cephfs
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import (
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import (
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"github.com/ceph/ceph-csi/internal/cephfs/core"
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"github.com/ceph/ceph-csi/internal/cephfs/core"
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"github.com/ceph/ceph-csi/internal/cephfs/mounter"
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fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
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fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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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/journal"
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@ -36,11 +37,9 @@ type Driver struct {
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cs *ControllerServer
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cs *ControllerServer
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}
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}
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var (
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// CSIInstanceID is the instance ID that is unique to an instance of CSI, used when sharing
|
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// CSIInstanceID is the instance ID that is unique to an instance of CSI, used when sharing
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// ceph clusters across CSI instances, to differentiate omap names per CSI instance.
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// ceph clusters across CSI instances, to differentiate omap names per CSI instance.
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var CSIInstanceID = "default"
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CSIInstanceID = "default"
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)
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// NewDriver returns new ceph driver.
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// NewDriver returns new ceph driver.
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func NewDriver() *Driver {
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func NewDriver() *Driver {
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@ -79,7 +78,7 @@ func (fs *Driver) Run(conf *util.Config) {
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var topology map[string]string
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var topology map[string]string
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// Configuration
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// Configuration
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if err = core.LoadAvailableMounters(conf); err != nil {
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if err = mounter.LoadAvailableMounters(conf); err != nil {
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log.FatalLogMsg("cephfs: failed to load ceph mounters: %v", err)
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log.FatalLogMsg("cephfs: failed to load ceph mounters: %v", err)
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}
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}
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142
internal/cephfs/mounter/fuse.go
Normal file
142
internal/cephfs/mounter/fuse.go
Normal file
@ -0,0 +1,142 @@
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/*
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Copyright 2021 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
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you may not use this file except in compliance with the License.
|
||||||
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You may obtain a copy of the License at
|
||||||
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|
||||||
|
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,
|
||||||
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
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 mounter
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import (
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"context"
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"fmt"
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"os"
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"regexp"
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||||||
|
"strconv"
|
||||||
|
"strings"
|
||||||
|
"sync"
|
||||||
|
|
||||||
|
"github.com/ceph/ceph-csi/internal/cephfs/core"
|
||||||
|
"github.com/ceph/ceph-csi/internal/util"
|
||||||
|
"github.com/ceph/ceph-csi/internal/util/log"
|
||||||
|
)
|
||||||
|
|
||||||
|
const (
|
||||||
|
volumeMounterFuse = "fuse"
|
||||||
|
|
||||||
|
cephEntityClientPrefix = "client."
|
||||||
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
|
||||||
|
// maps a mountpoint to PID of its FUSE daemon.
|
||||||
|
fusePidMap = make(map[string]int)
|
||||||
|
fusePidMapMtx sync.Mutex
|
||||||
|
|
||||||
|
fusePidRx = regexp.MustCompile(`(?m)^ceph-fuse\[(.+)\]: starting fuse$`)
|
||||||
|
)
|
||||||
|
|
||||||
|
type FuseMounter struct{}
|
||||||
|
|
||||||
|
func mountFuse(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error {
|
||||||
|
args := []string{
|
||||||
|
mountPoint,
|
||||||
|
"-m", volOptions.Monitors,
|
||||||
|
"-c", util.CephConfigPath,
|
||||||
|
"-n", cephEntityClientPrefix + cr.ID, "--keyfile=" + cr.KeyFile,
|
||||||
|
"-r", volOptions.RootPath,
|
||||||
|
}
|
||||||
|
|
||||||
|
fmo := "nonempty"
|
||||||
|
if volOptions.FuseMountOptions != "" {
|
||||||
|
fmo += "," + strings.TrimSpace(volOptions.FuseMountOptions)
|
||||||
|
}
|
||||||
|
args = append(args, "-o", fmo)
|
||||||
|
|
||||||
|
if volOptions.FsName != "" {
|
||||||
|
args = append(args, "--client_mds_namespace="+volOptions.FsName)
|
||||||
|
}
|
||||||
|
|
||||||
|
_, stderr, err := util.ExecCommand(ctx, "ceph-fuse", args[:]...)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("%w stderr: %s", err, stderr)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Parse the output:
|
||||||
|
// We need "starting fuse" meaning the mount is ok
|
||||||
|
// and PID of the ceph-fuse daemon for unmount
|
||||||
|
|
||||||
|
match := fusePidRx.FindSubmatch([]byte(stderr))
|
||||||
|
// validMatchLength is set to 2 as match is expected
|
||||||
|
// to have 2 items, starting fuse and PID of the fuse daemon
|
||||||
|
const validMatchLength = 2
|
||||||
|
if len(match) != validMatchLength {
|
||||||
|
return fmt.Errorf("ceph-fuse failed: %s", stderr)
|
||||||
|
}
|
||||||
|
|
||||||
|
pid, err := strconv.Atoi(string(match[1]))
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("failed to parse FUSE daemon PID: %w", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
fusePidMapMtx.Lock()
|
||||||
|
fusePidMap[mountPoint] = pid
|
||||||
|
fusePidMapMtx.Unlock()
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (m *FuseMounter) Mount(
|
||||||
|
ctx context.Context,
|
||||||
|
mountPoint string,
|
||||||
|
cr *util.Credentials,
|
||||||
|
volOptions *core.VolumeOptions) error {
|
||||||
|
if err := util.CreateMountPoint(mountPoint); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
return mountFuse(ctx, mountPoint, cr, volOptions)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (m *FuseMounter) Name() string { return "Ceph FUSE driver" }
|
||||||
|
|
||||||
|
func UnmountVolume(ctx context.Context, mountPoint string) error {
|
||||||
|
if _, stderr, err := util.ExecCommand(ctx, "umount", mountPoint); err != nil {
|
||||||
|
err = fmt.Errorf("%w stderr: %s", err, stderr)
|
||||||
|
if strings.Contains(err.Error(), fmt.Sprintf("umount: %s: not mounted", mountPoint)) ||
|
||||||
|
strings.Contains(err.Error(), "No such file or directory") {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
fusePidMapMtx.Lock()
|
||||||
|
pid, ok := fusePidMap[mountPoint]
|
||||||
|
if ok {
|
||||||
|
delete(fusePidMap, mountPoint)
|
||||||
|
}
|
||||||
|
fusePidMapMtx.Unlock()
|
||||||
|
|
||||||
|
if ok {
|
||||||
|
p, err := os.FindProcess(pid)
|
||||||
|
if err != nil {
|
||||||
|
log.WarningLog(ctx, "failed to find process %d: %v", pid, err)
|
||||||
|
} else {
|
||||||
|
if _, err = p.Wait(); err != nil {
|
||||||
|
log.WarningLog(ctx, "%d is not a child process: %v", pid, err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
74
internal/cephfs/mounter/kernel.go
Normal file
74
internal/cephfs/mounter/kernel.go
Normal file
@ -0,0 +1,74 @@
|
|||||||
|
/*
|
||||||
|
Copyright 2021 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 mounter
|
||||||
|
|
||||||
|
import (
|
||||||
|
"context"
|
||||||
|
"fmt"
|
||||||
|
|
||||||
|
"github.com/ceph/ceph-csi/internal/cephfs/core"
|
||||||
|
"github.com/ceph/ceph-csi/internal/util"
|
||||||
|
)
|
||||||
|
|
||||||
|
const (
|
||||||
|
volumeMounterKernel = "kernel"
|
||||||
|
netDev = "_netdev"
|
||||||
|
)
|
||||||
|
|
||||||
|
type KernelMounter struct{}
|
||||||
|
|
||||||
|
func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error {
|
||||||
|
if err := execCommandErr(ctx, "modprobe", "ceph"); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
args := []string{
|
||||||
|
"-t", "ceph",
|
||||||
|
fmt.Sprintf("%s:%s", volOptions.Monitors, volOptions.RootPath),
|
||||||
|
mountPoint,
|
||||||
|
}
|
||||||
|
|
||||||
|
optionsStr := fmt.Sprintf("name=%s,secretfile=%s", cr.ID, cr.KeyFile)
|
||||||
|
mdsNamespace := ""
|
||||||
|
if volOptions.FsName != "" {
|
||||||
|
mdsNamespace = fmt.Sprintf("mds_namespace=%s", volOptions.FsName)
|
||||||
|
}
|
||||||
|
optionsStr = util.MountOptionsAdd(optionsStr, mdsNamespace, volOptions.KernelMountOptions, netDev)
|
||||||
|
|
||||||
|
args = append(args, "-o", optionsStr)
|
||||||
|
|
||||||
|
_, stderr, err := util.ExecCommand(ctx, "mount", args[:]...)
|
||||||
|
if err != nil {
|
||||||
|
return fmt.Errorf("%w stderr: %s", err, stderr)
|
||||||
|
}
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (m *KernelMounter) Mount(
|
||||||
|
ctx context.Context,
|
||||||
|
mountPoint string,
|
||||||
|
cr *util.Credentials,
|
||||||
|
volOptions *core.VolumeOptions) error {
|
||||||
|
if err := util.CreateMountPoint(mountPoint); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
return mountKernel(ctx, mountPoint, cr, volOptions)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (m *KernelMounter) Name() string { return "Ceph kernel client" }
|
154
internal/cephfs/mounter/volumemounter.go
Normal file
154
internal/cephfs/mounter/volumemounter.go
Normal file
@ -0,0 +1,154 @@
|
|||||||
|
/*
|
||||||
|
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 mounter
|
||||||
|
|
||||||
|
import (
|
||||||
|
"context"
|
||||||
|
"errors"
|
||||||
|
"fmt"
|
||||||
|
"os/exec"
|
||||||
|
"strings"
|
||||||
|
|
||||||
|
"github.com/ceph/ceph-csi/internal/cephfs/core"
|
||||||
|
"github.com/ceph/ceph-csi/internal/util"
|
||||||
|
"github.com/ceph/ceph-csi/internal/util/log"
|
||||||
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
availableMounters []string
|
||||||
|
|
||||||
|
// nolint:gomnd // numbers specify Kernel versions.
|
||||||
|
quotaSupport = []util.KernelVersion{
|
||||||
|
{
|
||||||
|
Version: 4,
|
||||||
|
PatchLevel: 17,
|
||||||
|
SubLevel: 0,
|
||||||
|
ExtraVersion: 0, Distribution: "",
|
||||||
|
Backport: false,
|
||||||
|
}, // standard 4.17+ versions
|
||||||
|
{
|
||||||
|
Version: 3,
|
||||||
|
PatchLevel: 10,
|
||||||
|
SubLevel: 0,
|
||||||
|
ExtraVersion: 1062,
|
||||||
|
Distribution: ".el7",
|
||||||
|
Backport: true,
|
||||||
|
}, // RHEL-7.7
|
||||||
|
}
|
||||||
|
)
|
||||||
|
|
||||||
|
func execCommandErr(ctx context.Context, program string, args ...string) error {
|
||||||
|
_, _, err := util.ExecCommand(ctx, program, args...)
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Load available ceph mounters installed on system into availableMounters
|
||||||
|
// Called from driver.go's Run().
|
||||||
|
func LoadAvailableMounters(conf *util.Config) error {
|
||||||
|
// #nosec
|
||||||
|
fuseMounterProbe := exec.Command("ceph-fuse", "--version")
|
||||||
|
// #nosec
|
||||||
|
kernelMounterProbe := exec.Command("mount.ceph")
|
||||||
|
|
||||||
|
err := kernelMounterProbe.Run()
|
||||||
|
if err != nil {
|
||||||
|
log.ErrorLogMsg("failed to run mount.ceph %v", err)
|
||||||
|
} else {
|
||||||
|
// fetch the current running kernel info
|
||||||
|
release, kvErr := util.GetKernelVersion()
|
||||||
|
if kvErr != nil {
|
||||||
|
return kvErr
|
||||||
|
}
|
||||||
|
|
||||||
|
if conf.ForceKernelCephFS || util.CheckKernelSupport(release, quotaSupport) {
|
||||||
|
log.DefaultLog("loaded mounter: %s", volumeMounterKernel)
|
||||||
|
availableMounters = append(availableMounters, volumeMounterKernel)
|
||||||
|
} else {
|
||||||
|
log.DefaultLog("kernel version < 4.17 might not support quota feature, hence not loading kernel client")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
err = fuseMounterProbe.Run()
|
||||||
|
if err != nil {
|
||||||
|
log.ErrorLogMsg("failed to run ceph-fuse %v", err)
|
||||||
|
} else {
|
||||||
|
log.DefaultLog("loaded mounter: %s", volumeMounterFuse)
|
||||||
|
availableMounters = append(availableMounters, volumeMounterFuse)
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(availableMounters) == 0 {
|
||||||
|
return errors.New("no ceph mounters found on system")
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
type VolumeMounter interface {
|
||||||
|
Mount(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error
|
||||||
|
Name() string
|
||||||
|
}
|
||||||
|
|
||||||
|
func New(volOptions *core.VolumeOptions) (VolumeMounter, error) {
|
||||||
|
// Get the mounter from the configuration
|
||||||
|
|
||||||
|
wantMounter := volOptions.Mounter
|
||||||
|
|
||||||
|
// Verify that it's available
|
||||||
|
|
||||||
|
var chosenMounter string
|
||||||
|
|
||||||
|
for _, availMounter := range availableMounters {
|
||||||
|
if availMounter == wantMounter {
|
||||||
|
chosenMounter = wantMounter
|
||||||
|
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if chosenMounter == "" {
|
||||||
|
// Otherwise pick whatever is left
|
||||||
|
chosenMounter = availableMounters[0]
|
||||||
|
log.DebugLogMsg("requested mounter: %s, chosen mounter: %s", wantMounter, chosenMounter)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Create the mounter
|
||||||
|
switch chosenMounter {
|
||||||
|
case volumeMounterFuse:
|
||||||
|
return &FuseMounter{}, nil
|
||||||
|
case volumeMounterKernel:
|
||||||
|
return &KernelMounter{}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil, fmt.Errorf("unknown mounter '%s'", chosenMounter)
|
||||||
|
}
|
||||||
|
|
||||||
|
func BindMount(ctx context.Context, from, to string, readOnly bool, mntOptions []string) error {
|
||||||
|
mntOptionSli := strings.Join(mntOptions, ",")
|
||||||
|
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, from, to); err != nil {
|
||||||
|
return fmt.Errorf("failed to bind-mount %s to %s: %w", from, to, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if readOnly {
|
||||||
|
mntOptionSli = util.MountOptionsAdd(mntOptionSli, "remount")
|
||||||
|
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, to); err != nil {
|
||||||
|
return fmt.Errorf("failed read-only remount of %s: %w", to, err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
@ -25,6 +25,7 @@ import (
|
|||||||
|
|
||||||
"github.com/ceph/ceph-csi/internal/cephfs/core"
|
"github.com/ceph/ceph-csi/internal/cephfs/core"
|
||||||
cerrors "github.com/ceph/ceph-csi/internal/cephfs/errors"
|
cerrors "github.com/ceph/ceph-csi/internal/cephfs/errors"
|
||||||
|
"github.com/ceph/ceph-csi/internal/cephfs/mounter"
|
||||||
fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
|
fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
|
||||||
csicommon "github.com/ceph/ceph-csi/internal/csi-common"
|
csicommon "github.com/ceph/ceph-csi/internal/csi-common"
|
||||||
"github.com/ceph/ceph-csi/internal/util"
|
"github.com/ceph/ceph-csi/internal/util"
|
||||||
@ -153,7 +154,7 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
|
|||||||
}
|
}
|
||||||
defer cr.DeleteCredentials()
|
defer cr.DeleteCredentials()
|
||||||
|
|
||||||
m, err := core.NewMounter(volOptions)
|
m, err := mounter.New(volOptions)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
log.ErrorLog(ctx, "failed to create mounter for volume %s: %v", volID, err)
|
log.ErrorLog(ctx, "failed to create mounter for volume %s: %v", volID, err)
|
||||||
|
|
||||||
@ -169,12 +170,12 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
|
|||||||
if req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY ||
|
if req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY ||
|
||||||
req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY {
|
req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY {
|
||||||
switch m.(type) {
|
switch m.(type) {
|
||||||
case *core.FuseMounter:
|
case *mounter.FuseMounter:
|
||||||
if !csicommon.MountOptionContains(strings.Split(volOptions.FuseMountOptions, ","), readOnly) {
|
if !csicommon.MountOptionContains(strings.Split(volOptions.FuseMountOptions, ","), readOnly) {
|
||||||
volOptions.FuseMountOptions = util.MountOptionsAdd(volOptions.FuseMountOptions, readOnly)
|
volOptions.FuseMountOptions = util.MountOptionsAdd(volOptions.FuseMountOptions, readOnly)
|
||||||
fuseMountOptions = append(fuseMountOptions, readOnly)
|
fuseMountOptions = append(fuseMountOptions, readOnly)
|
||||||
}
|
}
|
||||||
case *core.KernelMounter:
|
case *mounter.KernelMounter:
|
||||||
if !csicommon.MountOptionContains(strings.Split(volOptions.KernelMountOptions, ","), readOnly) {
|
if !csicommon.MountOptionContains(strings.Split(volOptions.KernelMountOptions, ","), readOnly) {
|
||||||
volOptions.KernelMountOptions = util.MountOptionsAdd(volOptions.KernelMountOptions, readOnly)
|
volOptions.KernelMountOptions = util.MountOptionsAdd(volOptions.KernelMountOptions, readOnly)
|
||||||
kernelMountOptions = append(kernelMountOptions, readOnly)
|
kernelMountOptions = append(kernelMountOptions, readOnly)
|
||||||
@ -201,7 +202,7 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
|
|||||||
stagingTargetPath,
|
stagingTargetPath,
|
||||||
volID,
|
volID,
|
||||||
err)
|
err)
|
||||||
uErr := core.UnmountVolume(ctx, stagingTargetPath)
|
uErr := mounter.UnmountVolume(ctx, stagingTargetPath)
|
||||||
if uErr != nil {
|
if uErr != nil {
|
||||||
log.ErrorLog(
|
log.ErrorLog(
|
||||||
ctx,
|
ctx,
|
||||||
@ -263,7 +264,7 @@ func (ns *NodeServer) NodePublishVolume(
|
|||||||
|
|
||||||
// It's not, mount now
|
// It's not, mount now
|
||||||
|
|
||||||
if err = core.BindMount(
|
if err = mounter.BindMount(
|
||||||
ctx,
|
ctx,
|
||||||
req.GetStagingTargetPath(),
|
req.GetStagingTargetPath(),
|
||||||
req.GetTargetPath(),
|
req.GetTargetPath(),
|
||||||
@ -310,7 +311,7 @@ func (ns *NodeServer) NodeUnpublishVolume(
|
|||||||
}
|
}
|
||||||
|
|
||||||
// Unmount the bind-mount
|
// Unmount the bind-mount
|
||||||
if err = core.UnmountVolume(ctx, targetPath); err != nil {
|
if err = mounter.UnmountVolume(ctx, targetPath); err != nil {
|
||||||
return nil, status.Error(codes.Internal, err.Error())
|
return nil, status.Error(codes.Internal, err.Error())
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -358,7 +359,7 @@ func (ns *NodeServer) NodeUnstageVolume(
|
|||||||
return &csi.NodeUnstageVolumeResponse{}, nil
|
return &csi.NodeUnstageVolumeResponse{}, nil
|
||||||
}
|
}
|
||||||
// Unmount the volume
|
// Unmount the volume
|
||||||
if err = core.UnmountVolume(ctx, stagingTargetPath); err != nil {
|
if err = mounter.UnmountVolume(ctx, stagingTargetPath); err != nil {
|
||||||
return nil, status.Error(codes.Internal, err.Error())
|
return nil, status.Error(codes.Internal, err.Error())
|
||||||
}
|
}
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user