| /* |
| 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 ( |
| "fmt" |
| "os" |
| |
| "k8s.io/klog" |
| "k8s.io/kubernetes/pkg/volume" |
| "k8s.io/kubernetes/pkg/volume/util" |
| "k8s.io/utils/exec" |
| ) |
| |
| // FlexVolumeUnmounter is the disk that will be cleaned by this plugin. |
| type flexVolumeUnmounter struct { |
| *flexVolume |
| // Runner used to teardown the volume. |
| runner exec.Interface |
| } |
| |
| var _ volume.Unmounter = &flexVolumeUnmounter{} |
| |
| // Unmounter interface |
| func (f *flexVolumeUnmounter) TearDown() error { |
| path := f.GetPath() |
| return f.TearDownAt(path) |
| } |
| |
| func (f *flexVolumeUnmounter) TearDownAt(dir string) error { |
| |
| pathExists, pathErr := util.PathExists(dir) |
| if !pathExists { |
| klog.Warningf("Warning: Unmount skipped because path does not exist: %v", dir) |
| return nil |
| } |
| |
| if pathErr != nil && !util.IsCorruptedMnt(pathErr) { |
| return fmt.Errorf("Error checking path: %v", pathErr) |
| } |
| |
| call := f.plugin.NewDriverCall(unmountCmd) |
| call.Append(dir) |
| _, err := call.Run() |
| if isCmdNotSupportedErr(err) { |
| err = (*unmounterDefaults)(f).TearDownAt(dir) |
| } |
| if err != nil { |
| return err |
| } |
| |
| // Flexvolume driver may remove the directory. Ignore if it does. |
| if pathExists, pathErr := util.PathExists(dir); pathErr != nil { |
| return fmt.Errorf("Error checking if path exists: %v", pathErr) |
| } else if !pathExists { |
| return nil |
| } |
| return os.Remove(dir) |
| } |