mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 05:40:42 +00:00
112 lines
2.8 KiB
Go
112 lines
2.8 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes 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 flexvolume
|
|
|
|
import (
|
|
"os"
|
|
"strconv"
|
|
|
|
"k8s.io/kubernetes/pkg/volume"
|
|
"k8s.io/utils/exec"
|
|
)
|
|
|
|
// FlexVolumeMounter is the disk that will be exposed by this plugin.
|
|
type flexVolumeMounter struct {
|
|
*flexVolume
|
|
// Runner used to setup the volume.
|
|
runner exec.Interface
|
|
// the considered volume spec
|
|
spec *volume.Spec
|
|
readOnly bool
|
|
}
|
|
|
|
var _ volume.Mounter = &flexVolumeMounter{}
|
|
|
|
// Mounter interface
|
|
|
|
// SetUp creates new directory.
|
|
func (f *flexVolumeMounter) SetUp(mounterArgs volume.MounterArgs) error {
|
|
return f.SetUpAt(f.GetPath(), mounterArgs)
|
|
}
|
|
|
|
// SetUpAt creates new directory.
|
|
func (f *flexVolumeMounter) SetUpAt(dir string, mounterArgs volume.MounterArgs) error {
|
|
// Mount only once.
|
|
alreadyMounted, err := prepareForMount(f.mounter, dir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if alreadyMounted {
|
|
return nil
|
|
}
|
|
|
|
call := f.plugin.NewDriverCall(mountCmd)
|
|
|
|
// Interface parameters
|
|
call.Append(dir)
|
|
|
|
extraOptions := make(map[string]string)
|
|
|
|
// pod metadata
|
|
extraOptions[optionKeyPodName] = f.podName
|
|
extraOptions[optionKeyPodNamespace] = f.podNamespace
|
|
extraOptions[optionKeyPodUID] = string(f.podUID)
|
|
// service account metadata
|
|
extraOptions[optionKeyServiceAccountName] = f.podServiceAccountName
|
|
|
|
// Extract secret and pass it as options.
|
|
if err := addSecretsToOptions(extraOptions, f.spec, f.podNamespace, f.driverName, f.plugin.host); err != nil {
|
|
os.Remove(dir)
|
|
return err
|
|
}
|
|
|
|
// Implicit parameters
|
|
if mounterArgs.FsGroup != nil {
|
|
extraOptions[optionFSGroup] = strconv.FormatInt(int64(*mounterArgs.FsGroup), 10)
|
|
}
|
|
|
|
call.AppendSpec(f.spec, f.plugin.host, extraOptions)
|
|
|
|
_, err = call.Run()
|
|
if isCmdNotSupportedErr(err) {
|
|
err = (*mounterDefaults)(f).SetUpAt(dir, mounterArgs)
|
|
}
|
|
|
|
if err != nil {
|
|
os.Remove(dir)
|
|
return err
|
|
}
|
|
|
|
if !f.readOnly {
|
|
if f.plugin.capabilities.FSGroup {
|
|
volume.SetVolumeOwnership(f, mounterArgs.FsGroup, mounterArgs.FSGroupChangePolicy)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// GetAttributes get the flex volume attributes. The attributes will be queried
|
|
// using plugin callout after we finalize the callout syntax.
|
|
func (f *flexVolumeMounter) GetAttributes() volume.Attributes {
|
|
return (*mounterDefaults)(f).GetAttributes()
|
|
}
|
|
|
|
func (f *flexVolumeMounter) CanMount() error {
|
|
return nil
|
|
}
|