NFS and Microk8s

#!/usr/bin/env bash
if [ "$#" -ne 2 ]; then
  echo "Usage: $0 <uuid> <nfs node type server/client>"
  echo "Example: $0 28a1f1f8-e686-11eb-bf45-7f257ca7269b server"
  exit
fi

uuid=$1
node_type=$2
server_host=nas
server_mnt=/$uuid
server_net_mnt=${server_host}:{server_dir}
# local_mnt=/var/snap/microk8s/common/nas-nfs-standard
client_mnt=/opt/local-path-provisioner
client_ips="10.x.x.x 10.x.x.x 10.x.x.x"

if ! [[ $uuid =~ ^\{?[A-F0-9a-f]{8}-[A-F0-9a-f]{4}-[A-F0-9a-f]{4}-[A-F0-9a-f]{4}-[A-F0-9a-f]{12}\}?$ ]]; then
  echo "E: Invalid uuid format."
exit
fi


install_client(){
  echo Installing client.
  grep $server_mnt /etc/fstab || sudo echo "$server_net_mnt $client_mnt nfs" | sudo tee -a /etc/fstab
  sudo mkdir -p $client_mnt && sudo chmod 0755 $client_mnt
  sudo apt install -y nfs-client  # nfs-common
}


install_server(){
  echo Installing server.
  sudo apt install nfs-kernel-server
  sudo mkdir -p $server_mnt && sudo chmod 0755 $server_mnt
  sudo mv /etc/exports /etc/exports.bkp
  for ip in $client_ips; do
    echo "$server_mnt    $ip(rw,sync,no_subtree_check,insecure,no_root_squash)" | sudo tee -a /etc/exports
  done
  sudo chmod 0644 /etc/exports
  sudo systemctl reload nfs-server
}


install_localpathprov(){
  # https://github.com/rancher/local-path-provisioner
  kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml
  kubectl create -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/examples/pvc/pvc.yaml
  kubectl create -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/examples/pod/pod.yaml
}


if [[ "$node_type" == "server" ]]; then
  install_server
elif [[ "$node_type" == "client" ]]; then
  install_client
else
  echo "E: Unsupported node_type."
fi

Testing

mkdir ~/mnt sudo mount -t nfs $server_host:/28a1f1f8-e686-11eb-bf45-7f257ca7269b ~/mnt echo hi > ~/mnt/hi.txt cat ~/mnt/hi.txt