:etc:hosts

192.168.33.10  web.localhost  # VAGRANT: ebc283c1f8ffc9e5cbe2478efab4e0ce (web) / b442f183-a01f-47d3-b3fc-eed832482bfb
192.168.33.11  db.localhost  # VAGRANT: 6326d8261d43a18c63fb327a9d37abb4 (db) / 50816a6b-921e-4079-bedb-11f04a14987d
192.168.33.12  worker.localhost  # VAGRANT: f0a3c4cc0918527022d4b00405ad86ac (worker) / ea8fbb1c-459d-455b-ae35-3f2c55c83201

Vagrant

require_relative './vagrant/key_authorization'

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "ubuntu/trusty64"
  authorize_key_for_root config, '~/.ssh/id_dsa.pub', '~/.ssh/id_rsa.pub'

  pool = {
    'web'       => '192.168.33.10',
    'db'        => '192.168.33.11',
    'worker'    => '192.168.33.12',
  }

  pool.each do |short_name, ip|
    config.vm.define short_name do |host_config|
      host_config.vm.network 'private_network', ip: "#{ip}"
      host_config.vm.hostname = "#{short_name}.localhost"

      host_config.vm.synced_folder "./vm-mounts/#{short_name}-localhost", "/vagrant", owner: "root", group: "root", create: true

      config.vm.provision "ansible" do |ansible|
        ansible.playbook = "ansible/playbook-common.yml"
        ansible.sudo = true
        ansible.limit = "#{short_name}"

        # note: an ansible inventory file is create by vagrant, only use this to run the 'common' playbook
        # ansible.inventory_path = "ansible/inventory-local.yml"
        # ansible.verbose = "vvvv"
      end
    end
  end

  # Remove line in host's known_host file through Vagrant
  #
  # requires : vagrant-triggers
  # vagrant plugin install vagrant-triggers
  #
  config.trigger.after :destroy do
    puts "Removing known host entries"
    `sed -i '' '/192\.168\.33\.[0-9]{1,3}/d' ~/.ssh/known_hosts`
  end
end

~:.ssh:config

# For vagrant virtual machines
#
# SECURITY NOTICE: Absolutely do not do this for your production servers. This
# is only safe on a private vagrant network with your own VMs.
Host 192.168.33.* *.localhost
StrictHostKeyChecking no
UserKnownHostsFile=/dev/null
User root
LogLevel ERROR
rattletrap:provisi