For the [tutorial](https://github.com/OpenCHAMI/tutorial-2025), we served images via HTTP with a local S3 bucket using MinIO and an OCI registry. We could instead serve our images by network mounting the directories that hold our images with NFS. We can spin up a NFS server on the head node by including NFS tools in our base image and configure our nodes to mount the images.

Configure NFS to serve your SquashFS `nfsroot` with as much performance as possible.

```bash
sudo mkdir -p /opt/nfsroot && sudo chown rocky /opt/nfsroot
```

Create a file at path `/etc/exports` and copy the following contents to export the `/opt/nfsroot` directory for use by our compute nodes.

```bash
/opt/nfsroot *(ro,no_root_squash,no_subtree_check,noatime,async,fsid=0)
```

Reload the NFS daemon to apply the changes.

```bash
modprobe -r nfsd && modprobe nfsd
```