code: def systemd(service, start=True, enabled=True, unmask=False, restart=False):
      
  
      with settings(hide('warnings', 'running', 'stdout', 'stderr'),
                    warn_only=True, capture=True):
  
          if restart:
              sudo('systemctl restart %s' % service)
          else:
              if start:
                  sudo('systemctl start %s' % service)
              else:
                  sudo('systemctl stop %s' % service)
  
          if enabled:
              sudo('systemctl enable %s' % service)
          else:
              sudo('systemctl disable %s' % service)
  
          if unmask:
              sudo('systemctl unmask %s' % service)
docs: manipulates systemd services