code: def start_service(conn, service='ceph'):
      
      if is_systemd(conn):
          remoto.process.run(
              conn,
              [
                  'systemctl',
                  'start',
                  '{service}'.format(service=service),
              ]
          )
docs: Stop a service on a remote host depending on the type of init system.
      Obviously, this should be done for RHEL/Fedora/CentOS systems.
  
      This function does not do any kind of detection.