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https://github.com/yunionio/cloudpods.git
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913aec9f7f
support create disk from encrypted snapshot, new disk encrypt info must same with snapshot, and should used with libqemuio2.12. area: host,host-image,fetcherfs Signed-off-by: wanyaoqi <wanyaoqi1995@163.com>
111 lines
3.0 KiB
Go
111 lines
3.0 KiB
Go
// Copyright 2019 Yunion
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package fuseutils
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import (
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"os"
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"path"
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"strconv"
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"strings"
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"time"
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"yunion.io/x/log"
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"yunion.io/x/pkg/errors"
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"yunion.io/x/onecloud/pkg/apis"
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"yunion.io/x/onecloud/pkg/util/fileutils2"
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"yunion.io/x/onecloud/pkg/util/procutils"
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)
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func MountFusefs(
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fetcherfsPath, url, tmpdir, token, mntpath string,
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blocksize int, encryptInfo *apis.SEncryptInfo,
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) error {
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var metaPath = path.Join(mntpath, "meta")
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if f, err := os.OpenFile(metaPath, os.O_RDONLY, 0644); err == nil {
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f.Close()
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log.Infof("Already mounted: %s, skip...", mntpath)
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return nil
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}
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// is mounted
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if err := procutils.NewCommand("mountpoint", mntpath).Run(); err == nil {
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out, err := procutils.NewCommand("umount", mntpath).Output()
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if err != nil {
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return errors.Wrapf(err, "umount %s failed: %s", mntpath, out)
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}
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}
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if !fileutils2.Exists(tmpdir) {
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if out, err := procutils.NewCommand("mkdir", "-p", tmpdir).Output(); err != nil {
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return errors.Wrapf(err, "mkdir %s failed: %s", tmpdir, out)
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}
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}
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if !fileutils2.Exists(mntpath) {
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if out, err := procutils.NewCommand("mkdir", "-p", mntpath).Output(); err != nil {
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return errors.Wrapf(err, "mkdir %s failed: %s", mntpath, out)
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}
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}
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var cmd = []string{
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fetcherfsPath,
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"--url", url,
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"--token", token,
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"--tmpdir", tmpdir,
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"--blocksize", strconv.Itoa(blocksize),
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"--mount-point", mntpath,
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}
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if encryptInfo != nil && len(encryptInfo.Key) > 0 {
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// TODO: base64 encrypt key
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cmd = append(cmd, "--encrypt-key", encryptInfo.Key)
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}
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if encryptInfo != nil && len(encryptInfo.Alg) > 0 {
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cmd = append(cmd, "--encrypt-alg", string(encryptInfo.Alg))
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}
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log.Infof("%s", strings.Join(cmd, " "))
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out, err := procutils.NewRemoteCommandAsFarAsPossible(cmd[0], cmd[1:]...).Output()
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if err != nil {
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log.Errorf("%v Mount fetcherfs filed: %s %s", cmd, err, out)
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out2, err2 := procutils.NewCommand("umount", mntpath).Output()
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if err2 != nil {
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log.Errorf("umount fetcherfs failed %s %s", err2, out2)
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}
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return errors.Wrapf(err, "mount fetcherfs failed: %s", out)
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}
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var mounted = false
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for i := 0; i < 3; i++ {
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time.Sleep(1 * time.Second)
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if f, err := os.OpenFile(metaPath, os.O_RDONLY, 0644); err == nil {
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f.Close()
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mounted = true
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break
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} else {
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log.Warningf("failed open metaPath %s: %s", metaPath, err)
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}
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}
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if !mounted {
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out2, err2 := procutils.NewCommand("umount", mntpath).Output()
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if err2 != nil {
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log.Errorf("umount fetcherfs failed %s %s", err2, out2)
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}
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return errors.Error("failed open metaPath")
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} else {
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return nil
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}
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}
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