func GetPreferredDockercfgPath() string {
	preferredPathLock.Lock()
	defer preferredPathLock.Unlock()
	return preferredPath
}

// DefaultDockercfgPaths returns default search paths of .dockercfg
func DefaultDockercfgPaths() []string {
	return []string{GetPreferredDockercfgPath(), workingDirPath, homeDirPath, rootDirPath}
}