Multiple Vagrantfiles

Read the Vagrantfile in this repository to see information on creating Multi-VM Vagrantfiles. I've seen something similar to the following in Vagrant core:

Vagrantfile:

Vagrant.configure("2") do |config|
  config.vm.box = 'precise64'
end

client_vagrantfile = File.expand_path('../Vagrantfile.client', __FILE__)
load client_vagrantfile if File.exists?(client_vagrantfile)

Vagrantfile.client:

Vagrant.configure("2") do |config|
  config.vm.define :client do |client_config|
    client_config.vm.hostname = 'client'
  end
end

I personally like the style of having a vagrant directory on the same level as my Vagrantfile where I do general configuration and I later add overrides in Vagrantfile.role_based_extension files.

Trimmed Directory structure:

|- Vagrantfile
|- vagrant/
|-- Vagrantfile.client
|-- Vagrantfile.server

Best solution

Vagrantfile:

Vagrant.configure('2') do |config|
  config.ssh.max_tries = 40
  config.ssh.timeout   = 120
  config.vm.box = 'precise64'
  config.vm.box_url = 'http://files.vagrantup.com/precise64.box'
end

vagrantfiles = %w[vagrant/Vagrantfile.client vagrant/Vagrantfile.server]
vagrantfiles.each do |vagrantfile|
  load File.expand_path(vagrantfile) if File.exists?(vagrantfile)
end

vagrant/Vagrantfile.server:

Vagrant.configure('2') do |config|
  config.vm.define :server do |server_config|
    server_config.vm.hostname = 'example-server'
    server_config.vm.network :private_network, ip: '33.33.33.11'

    server_config.vm.provision :chef_solo do |chef|
      chef.run_list = ['recipe[web::server]']
    end
  end
end