引数に指定した仮想マシンのホームディレクトリをsshfsでマウント。元記事→https://blog.b-shock.org/2017/09/07/sshfs/

mount.rb

#!/usr/bin/env ruby

require 'socket'
require 'fileutils'

def get_fqdn (name)
  parts = Socket.gethostname.split('.')
  parts.unshift(name)
  parts.push('local') unless parts.last == 'local'
  return parts.join('.')
end

unless ARGV.first
  puts '引数がないよ'
  exit 1
end

name = ARGV.first

mountpoint = File.join(File.expand_path('~/mount'), name)
FileUtils.mkdir_p(mountpoint) unless Dir.exist?(mountpoint)

source = "#{get_fqdn(name)}:/home/#{ENV['USER']}"
command = ['sshfs', source, mountpoint]

puts command.join(' ')
system(*command)