Beispiel #1
0
func (kl *Kubelet) getPodVolumes(podUID types.UID) ([]*volumeTuple, error) {
	var volumes []*volumeTuple
	podVolDir := kl.getPodVolumesDir(podUID)
	volumeKindDirs, err := ioutil.ReadDir(podVolDir)
	if err != nil {
		glog.Errorf("Could not read directory %s: %v", podVolDir, err)
	}
	for _, volumeKindDir := range volumeKindDirs {
		volumeKind := volumeKindDir.Name()
		volumeKindPath := path.Join(podVolDir, volumeKind)
		// ioutil.ReadDir exits without returning any healthy dir when encountering the first lstat error
		// but skipping dirs means no cleanup for healthy volumes. switching to a no-exit api solves this problem
		volumeNameDirs, volumeNameDirsStat, err := util.ReadDirNoExit(volumeKindPath)
		if err != nil {
			return []*volumeTuple{}, fmt.Errorf("could not read directory %s: %v", volumeKindPath, err)
		}
		for i, volumeNameDir := range volumeNameDirs {
			if volumeNameDir != nil {
				volumes = append(volumes, &volumeTuple{Kind: volumeKind, Name: volumeNameDir.Name()})
			} else {
				glog.Errorf("Could not read directory %s: %v", podVolDir, volumeNameDirsStat[i])
			}
		}
	}
	return volumes, nil
}
// getPodVolumeNameListFromDisk returns a list of the volume names by reading the
// volume directories for the given pod from the disk.
func (kl *Kubelet) getPodVolumeNameListFromDisk(podUID types.UID) ([]string, error) {
	volumes := []string{}
	podVolDir := kl.getPodVolumesDir(podUID)
	volumePluginDirs, err := ioutil.ReadDir(podVolDir)
	if err != nil {
		glog.Errorf("Could not read directory %s: %v", podVolDir, err)
		return volumes, err
	}
	for _, volumePluginDir := range volumePluginDirs {
		volumePluginName := volumePluginDir.Name()
		volumePluginPath := path.Join(podVolDir, volumePluginName)
		volumeDirs, volumeDirsStatErrs, err := util.ReadDirNoExit(volumePluginPath)
		if err != nil {
			return volumes, fmt.Errorf("Could not read directory %s: %v", volumePluginPath, err)
		}
		for i, volumeDir := range volumeDirs {
			if volumeDir != nil {
				volumes = append(volumes, volumeDir.Name())
				continue
			}
			glog.Errorf("Could not read directory %s: %v", podVolDir, volumeDirsStatErrs[i])

		}
	}
	return volumes, nil
}