code: func (SystemdStrategy) start(ctx context.Context, _ string) error {
  	if err := exec.Command("systemctl", "daemon-reload").Run(); err != nil {
  		return err
  	}
  	if err := exec.Command("systemctl", "enable", "machine-provider-agent").Run(); err != nil {
  		return err
  	}
  	return exec.Command("systemctl", "start", "machine-provider-agent").Run()
  }
docs: // start starts the agent.