Systemd Lazy Automount
/etc/fstab:
//server.local/sharename /mnt/share cifs x-systemd.automount,x-systemd.idle-timeout=1min,rw,uid=user,gid=users,domain=DOMAIN,credentials=/etc/smbcredentials,iocharset=utf8,file_mode=0777,dir_mode=0777 0 0
reload systemd
systemctl daemon-reload
systemctl restart remote-fs.target
systemctl restart local-fs.target