copiedFilenames := sets.String{}
	srcFiles, err := os.ReadDir(srcDir)
	if err != nil {
		return copiedFilenames, err
	}

	for _, f := range srcFiles {
		if f.IsDir() {
			continue
		}

		filename := f.Name()
		srcFilepath := filepath.Join(srcDir, filename)

		for _, targetDir := range targetDirs {
			if err := file.AtomicCopy(srcFilepath, targetDir, filename); err != nil {