Volumes on Rancher

I created a folder on my machine, the same machine that hosts Rancher 2, and I want this folder being used as a volume on all nodes (other machines on the same network). Do I need first to share this folder on the network and configure on all my cluster nodes to have this folder mapped locally, or the rancher takes care and do some transparent mapping to me?

I haven’t found a good tutorial to learn simple folders as storage in Rancher 2.