You can mount the Gluster node via CIFS/SMB or NFS .. there is no support for their native client libs in LE or Kodi. You can either remote mount to a local folder using the systemd SMB/NFS .mount templates in /storage/.config/system.d or use the Kodi client capabilities as normal. IMHO unless you need to use/learn GlusterFS for some other purpose it's probably an unnecessary complication.