func (m *Mounter) MountSysProc() error {
// mount -t proc none {{rootDir}}/proc
if err := osutil.MountIfNotMounted("none", fp.Join(m.rootDir, "/proc"), "proc", ""); err != nil {
return fmt.Errorf("Failed to mount /proc: %s", err)
}
// mount --rbind /sys {{rootDir}}/sys
if err := osutil.MountIfNotMounted("/sys", fp.Join(m.rootDir, "/sys"), "none", "rbind"); err != nil {
return fmt.Errorf("Failed to mount /sys: %s", err)
}
return nil
}
func (m *Mounter) BindMount(hostDir, containerDir string) error {
containerDir = fp.Join(m.rootDir, containerDir)
if ok := osutil.IsDirEmpty(hostDir); ok {
if _, err := os.Create(fp.Join(hostDir, ".droot.keep")); err != nil {
return err
}
}
if err := fileutils.CreateIfNotExists(containerDir, true); err != nil { // mkdir -p
return err
}
if err := osutil.MountIfNotMounted(hostDir, containerDir, "none", "bind,rw"); err != nil {
return err
}
return nil
}