mirror of https://github.com/containers/podman.git
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package libpod
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import (
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"os"
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"path/filepath"
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"github.com/containers/libpod/libpod/define"
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"github.com/pkg/errors"
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)
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// Creates a new volume
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func newVolume(runtime *Runtime) (*Volume, error) {
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volume := new(Volume)
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volume.config = new(VolumeConfig)
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volume.state = new(VolumeState)
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volume.runtime = runtime
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volume.config.Labels = make(map[string]string)
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volume.config.Options = make(map[string]string)
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volume.state.NeedsCopyUp = true
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return volume, nil
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}
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// teardownStorage deletes the volume from volumePath
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func (v *Volume) teardownStorage() error {
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return os.RemoveAll(filepath.Join(v.runtime.config.VolumePath, v.Name()))
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}
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// Volumes with options set, or a filesystem type, or a device to mount need to
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// be mounted and unmounted.
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func (v *Volume) needsMount() bool {
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return len(v.config.Options) > 0 && v.config.Driver == define.VolumeDriverLocal
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}
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// update() updates the volume state from the DB.
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func (v *Volume) update() error {
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if err := v.runtime.state.UpdateVolume(v); err != nil {
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return err
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}
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if !v.valid {
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return define.ErrVolumeRemoved
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}
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return nil
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}
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// save() saves the volume state to the DB
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func (v *Volume) save() error {
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return v.runtime.state.SaveVolume(v)
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}
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// Refresh volume state after a restart.
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func (v *Volume) refresh() error {
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lock, err := v.runtime.lockManager.AllocateAndRetrieveLock(v.config.LockID)
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if err != nil {
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return errors.Wrapf(err, "error acquiring lock %d for volume %s", v.config.LockID, v.Name())
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}
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v.lock = lock
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return nil
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}
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