Background

In our company we have different development teams working with same Vagrant boxes. As a challenge they need different sync folder locations – even inside teams. I’m just too lazy to provide and maintain all Vagrantfile templates for their needs. So i provide a quick and dirty solution for them.

Example

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|

  # box name
  config.vm.box = "lupin/centos7"

  # Disable replacing insecure key
  config.ssh.insert_key = false

  # Disable default synced folder
  config.vm.synced_folder ".", "/vagrant", disabled: true

  # Synced folder(s) by argument
  if !ENV['mount'].nil?

    loop do
      puts "local folder: "
      local_dir = STDIN.gets.chomp
      puts "target folder: "
      target_dir = STDIN.gets.chomp

      if local_dir.empty? || target_dir.empty?
        break
      end

      config.vm.synced_folder local_dir, target_dir
    end

  end

 # VirtualBox specific configuration
  config.vm.provider "virtualbox" do |vb|
    vb.gui = false
    vb.memory = "1024"
    vb.cpus = 1
    vb.name = "example_vm"
  end

end

Usage

# simple command
$ vagrant up

# check for synced folder(s)
$ vagrant ssh -c 'ls -la /'

# destroy environment
$ vagrant halt

# run with argument (mount)
$ mount=yes vagrant up
...
local folder:
src_a <ENTER>
target folder:
/vagrant_a <ENTER>
local folder:
src_b <ENTER>
target folder:
/vagrant_b <ENTER>
local folder:
<ENTER>
target folder:
<ENTER>
...

# show content
$ vagrant ssh -c 'cat /vagrant_a/SomeTestFile_a && cat /vagrant_b/SomeTestFile_b'
...
Hello world ... a
Hello world ... b
...

# destroy environment
$ vagrant destroy -f

😉