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Remove symlinks on layer removal for overlay2 

Symlinks are currently not getting cleaned up when removing layers since only the root directory is removed.
On remove, read the link file and remove the associated link from the link directory.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan 2016-06-14 12:40:35 -07:00
parent 81a85cf448
commit e6f2e7646c
1 changed files with 9 additions and 1 deletions
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10
daemon/graphdriver/overlay2/overlay.go
View File

@ -340,7 +340,15 @@ func (d *Driver) getLowerDirs(id string) ([]string, error) {
// Remove cleans the directories that are created for this id.
func (d *Driver) Remove(id string) error {
if err := os.RemoveAll(d.dir(id)); err != nil && !os.IsNotExist(err) {
dir := d.dir(id)
lid, err := ioutil.ReadFile(path.Join(dir, "link"))
if err == nil {
if err := os.RemoveAll(path.Join(d.home, linkDir, string(lid))); err != nil {
logrus.Debugf("Failed to remove link: %v", err)
}
}
if err := os.RemoveAll(dir); err != nil && !os.IsNotExist(err) {
return err
}
return nil