Vagrant configuration to install two Ubuntu 12.04 servers, first server has a Chef Server installed, second server has a Chef Client installed, and the folder where these files are places is configured to be a Chef Workstation using admin.pem.

Gemfile

source "https://rubygems.org"

gem 'chef', '>= 11.0'
gem 'librarian'
gem 'vagrant', '= 1.0.6'
gem 'vagrant-hostmaster'
gem 'foodcritic'

Vagrantfile

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

# default box when no VAGRANT_BOX / VAGRANT_BOX_URL environment is set
BOX_NAME = "precise"
BOX_URL  = "http://cloud-images.ubuntu.com/vagrant/precise/current/precise-server-cloudimg-amd64-vagrant-disk1.box"

UBUNTU_CLEAN_IMAGE = <<-EOF
#!/bin/sh
apt-get remove puppet libruby1.8 libshadow-ruby1.8 ruby1.8 ruby1.8-dev rubygems -y
apt-get autoremove -y
EOF

CHEF_CLIENT_INSTALL = <<-EOF
#!/bin/sh
test -d /opt/chef || {
  echo "Installing chef-client via omnibus"
  curl -L -s https://www.opscode.com/chef/install.sh | bash
}
EOF

CHEF_SERVER_INSTALL = <<-EOF
#!/bin/sh
test -d /opt/chef-server || {
  echo "Installing chef-server via omnibus"
  curl -L -s 'http://www.opscode.com/chef/download-server?p=ubuntu&pv=12.04&m=x86_64' > chef-server.dpkg
  dpkg -i chef-server.dpkg
  /opt/chef-server/bin/chef-server-ctl reconfigure >/dev/null
}
EOF

CHEF_CREATE_WORKSTATION = <<-EOF
#!/bin/sh
mkdir -p /vagrant/.chef
cp /etc/chef-server/admin.pem /vagrant/.chef/
cp /etc/chef-server/chef-validator.pem /vagrant/.chef/
cat <<EOK > /vagrant/.chef/knife.rb
cwd                     = File.dirname(__FILE__)
log_level               :info   # valid values - :debug :info :warn :error :fatal
log_location            STDOUT
node_name               ENV.fetch('KNIFE_NODE_NAME', 'admin')
client_key              ENV.fetch('KNIFE_CLIENT_KEY', File.join(cwd,'admin.pem'))
chef_server_url         ENV.fetch('KNIFE_CHEF_SERVER_URL', 'https://chefserver.vagrant')
validation_client_name  ENV.fetch('KNIFE_CHEF_VALIDATION_CLIENT_NAME', 'chef-validator')
validation_key          ENV.fetch('KNIFE_CHEF_VALIDATION_KEY', File.join(cwd,'chef-validator.pem'))
syntax_check_cache_path File.join(cwd,'syntax_check_cache')
cookbook_path           [File.join(cwd,'..','cookbooks'), File.join(cwd,'..','site-cookbooks')]
data_bag_path           File.join(cwd,'..','data_bags')
role_path               File.join(cwd,'..','roles')
EOK
EOF

CHEF_CLIENT_PROVISION = lambda do |chef|
  chef.chef_server_url = 'https://chefserver.vagrant'
  chef.validation_key_path = ".chef/chef-validator.pem"
  chef.validation_client_name = "chef-validator"
end

Vagrant::Config.run do |config|
  config.vm.box = ENV.fetch("VAGRANT_BOX", BOX_NAME)
  config.vm.box_url = ENV.fetch("VAGRANT_BOX_URL", BOX_URL)

  if ENV.fetch('VAGRANT_GUI', false)
    config.vm.boot_mode = :gui
  end

  config.vm.define :chefserver do |v|
    v.vm.customize ["modifyvm", :id, "--memory", 1024]
    v.vm.network :hostonly, "192.168.34.10"
    v.vm.host_name = "chefserver.vagrant"
    v.vm.provision :shell, :inline => UBUNTU_CLEAN_IMAGE
    v.vm.provision :shell, :inline => CHEF_CLIENT_INSTALL
    v.vm.provision :shell, :inline => CHEF_SERVER_INSTALL
    v.vm.provision :shell, :inline => CHEF_CREATE_WORKSTATION
  end

  config.vm.define 'client' do |v|
    v.vm.network :hostonly, "192.168.34.30"
    v.vm.forward_port 22, 2230
    v.vm.host_name = "client.vagrant"
    v.vm.provision :shell, :inline => UBUNTU_CLEAN_IMAGE
    v.vm.provision :shell, :inline => CHEF_CLIENT_INSTALL
    v.vm.provision :chef_client, &CHEF_CLIENT_PROVISION
  end

end