}

	watcher, err := util.CreateFileWatcher(cfg.mountedCNINetDir)
	if err != nil {
		return "", err
	}
	defer watcher.Close()

	for len(filename) == 0 {
		filename, err = getDefaultCNINetwork(cfg.mountedCNINetDir)
		if err == nil {
			break
		}
		installLog.Warnf("Istio CNI is configured as chained plugin, but cannot find existing CNI network config: %v", err)

			if c.fileContents != "" {
				err := os.WriteFile(filepath.Join(c.dir, c.inFilename), []byte(c.fileContents), 0o644)
				if err != nil {
					t.Fatal(err)
				}
			}

			result, err := getDefaultCNINetwork(c.dir)
			if (c.expectedFailure && err == nil) || (!c.expectedFailure && err != nil) {
				t.Fatalf("expected failure: %t, got %v", c.expectedFailure, err)
			}

			if c.fileContents != "" {

	}
}

// checkValidCNIConfig returns an error if an invalid CNI configuration is detected
func checkValidCNIConfig(cfg *config.InstallConfig, cniConfigFilepath string) error {
	defaultCNIConfigFilename, err := getDefaultCNINetwork(cfg.MountedCNINetDir)
	if err != nil {
		return err
	}
	defaultCNIConfigFilepath := filepath.Join(cfg.MountedCNINetDir, defaultCNIConfigFilename)
	if defaultCNIConfigFilepath != cniConfigFilepath {