// utility to mount a disk based filesystem
func diskSetUp(manager diskManager, b iscsiDiskBuilder, volPath string, mounter mount.Interface) error {
globalPDPath := manager.MakeGlobalPDName(*b.iscsiDisk)
// TODO: handle failed mounts here.
notMnt, err := mounter.IsLikelyNotMountPoint(volPath)
if err != nil && !os.IsNotExist(err) {
glog.Errorf("cannot validate mountpoint: %s", volPath)
return err
}
if !notMnt {
return nil
}
if err := manager.AttachDisk(b); err != nil {
glog.Errorf("failed to attach disk")
return err
}
if err := os.MkdirAll(volPath, 0750); err != nil {
glog.Errorf("failed to mkdir:%s", volPath)
return err
}
// Perform a bind mount to the full path to allow duplicate mounts of the same disk.
options := []string{"bind"}
if b.readOnly {
options = append(options, "ro")
}
err = mounter.Mount(globalPDPath, volPath, "", options)
if err != nil {
glog.Errorf("failed to bind mount:%s", globalPDPath)
return err
}
return nil
}
