Vagrantfile

$nfsConfig = <<-SCRIPT
    sudo apt-get update
    sudo apt-get install nfs-kernel-server -y
    sudo mkdir -p /mnt/nfs_share
    sudo chown -R nobody:nogroup /mnt/nfs_share/
    sudo chmod 777 /mnt/nfs_share/
    # /mnt/nfs_share  client_IP_1 (re,sync,no_subtree_check) # single client
# cat >>/etc/exports<<EOF
#     /mnt/nfs_share  192.168.56.0/24(rw,sync,no_subtree_check,no_root_squash)
# EOF
    echo "/mnt/nfs_share  192.168.56.0/24(rw,sync,no_subtree_check,no_root_squash)" | sudo tee -a /etc/exports
    sudo exportfs -rav
    sudo systemctl restart nfs-kernel-server
    sudo systemctl enable nfs-server
SCRIPT
Vagrant.configure("2") do |cf|
    cf.vm.define "nfs-server" do |nfs|
      nfs.vm.box = "bento/ubuntu-20.04"
      nfs.vm.hostname = "nfs-server"
      nfs.vm.network "private_network", ip: "192.168.56.35"
      nfs.vm.network :forwarded_port, guest: 22, host: 2213, id: "ssh", protocol: "tcp"
      nfs.vm.provider "virtualbox" do |n|
        n.name = "nfs-server"
        n.customize ['modifyvm', :id, '--nicpromisc2', 'allow-all']
        n.customize ["modifyvm", :id, "--memory", '2048']
        n.customize ["modifyvm", :id, "--cpus", '2']
      end
      nfs.vm.provision "shell", privileged: false, inline: $nfsConfig
    end
  end