func setHostName()

in projects/aws/bottlerocket-bootstrap/pkg/kubeadm/utils.go [35:56]

• 20 lines of code
• 4 McCabe index (conditional complexity)

func setHostName(filepath string) error {
	fmt.Println("Setting hostname in config files")
	hostname, err := os.Hostname()
	if err != nil {
		return errors.Wrap(err, "Error getting hostname")
	}
	fileData, err := ioutil.ReadFile(filepath)
	if err != nil {
		return errors.Wrap(err, "Error reading kubeadm file")
	}
	fileDataStr := string(fileData)
	fileDataStr = strings.ReplaceAll(fileDataStr, "{{ ds.meta_data.hostname }}", hostname)

	// Write the file back
	err = ioutil.WriteFile(filepath, []byte(fileDataStr), 0640)
	if err != nil {
		return errors.Wrap(err, "Error writing file")
	}
	fmt.Println("Wrote config file back to kubeadm")
	fmt.Println(fileDataStr)
	return nil
}