mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-20 07:29:50 +00:00
134 lines
3.1 KiB
Go
134 lines
3.1 KiB
Go
/*
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Copyright 2018 The Kubernetes 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 cephfs
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"os/exec"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"k8s.io/kubernetes/pkg/util/keymutex"
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"k8s.io/kubernetes/pkg/util/mount"
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)
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func execCommand(command string, args ...string) ([]byte, error) {
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cmd := exec.Command(command, args...)
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return cmd.CombinedOutput()
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}
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func execCommandAndValidate(program string, args ...string) error {
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out, err := execCommand(program, args...)
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if err != nil {
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return fmt.Errorf("cephfs: %s failed with following error: %s\ncephfs: %s output: %s", program, err, program, out)
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}
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return nil
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}
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func execCommandJson(v interface{}, program string, args ...string) error {
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cmd := exec.Command(program, args...)
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out, err := cmd.CombinedOutput()
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if err != nil {
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return err
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}
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return json.NewDecoder(bytes.NewReader(out)).Decode(v)
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}
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func isMountPoint(p string) (bool, error) {
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notMnt, err := mount.New("").IsLikelyNotMountPoint(p)
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if err != nil {
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return false, status.Error(codes.Internal, err.Error())
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}
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return !notMnt, nil
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}
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func tryLock(id string, mtx keymutex.KeyMutex, name string) error {
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// TODO uncomment this once TryLockKey gets into Kubernetes
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/*
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if !mtx.TryLockKey(id) {
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msg := fmt.Sprintf("%s has a pending operation on %s", name, req.GetVolumeId())
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glog.Infoln(msg)
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return status.Error(codes.Aborted, msg)
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}
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*/
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return nil
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}
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func storeCephUserCredentials(volUuid string, cr *credentials, volOptions *volumeOptions) error {
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keyringData := cephKeyringData{
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UserId: cr.id,
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Key: cr.key,
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RootPath: volOptions.RootPath,
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VolumeUuid: volUuid,
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}
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if volOptions.ProvisionVolume {
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keyringData.Pool = volOptions.Pool
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keyringData.Namespace = getVolumeNamespace(volUuid)
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}
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return storeCephCredentials(volUuid, cr, &keyringData)
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}
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func storeCephAdminCredentials(volUuid string, cr *credentials) error {
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return storeCephCredentials(volUuid, cr, &cephFullCapsKeyringData{UserId: cr.id, Key: cr.key, VolumeUuid: volUuid})
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}
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func storeCephCredentials(volUuid string, cr *credentials, keyringData cephConfigWriter) error {
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if err := keyringData.writeToFile(); err != nil {
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return err
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}
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secret := cephSecretData{
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UserId: cr.id,
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Key: cr.key,
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VolumeUuid: volUuid,
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}
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if err := secret.writeToFile(); err != nil {
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return err
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}
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return nil
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}
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func newMounter(volOptions *volumeOptions) volumeMounter {
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mounter := volOptions.Mounter
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if mounter == "" {
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mounter = DefaultVolumeMounter
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}
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switch mounter {
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case volumeMounter_fuse:
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return &fuseMounter{}
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case volumeMounter_kernel:
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return &kernelMounter{}
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}
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return nil
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}
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