diff --git a/execdriver/namespaces/driver.go b/execdriver/namespaces/driver.go index 8143b39d9..d94859405 100644 --- a/execdriver/namespaces/driver.go +++ b/execdriver/namespaces/driver.go @@ -112,7 +112,24 @@ func (d *driver) Kill(p *execdriver.Command, sig int) error { } func (d *driver) Restore(c *execdriver.Command) error { - return ErrNotSupported + var ( + nspid int + p = filepath.Join(d.root, "containers", c.ID, "root", ".nspid") + ) + f, err := os.Open(p) + if err != nil { + return err + } + defer f.Close() + if _, err := fmt.Fscanf(f, "%d", &nspid); err != nil { + return err + } + proc, err := os.FindProcess(nspid) + if err != nil { + return err + } + _, err = proc.Wait() + return err } func (d *driver) Info(id string) execdriver.Info {