Vagrantfile template that is extremely flexible and includes dynamic definitions, ansible playbook usage, and dynamic ansible logging

Vagrantfile

required_plugins = %w(vagrant-s3auth vagrant-vbguest)

plugins_to_install = required_plugins.select { |plugin| not Vagrant.has_plugin? plugin }
if not plugins_to_install.empty?
  puts "Installing plugins: #{plugins_to_install.join(' ')}"
  if system "vagrant plugin install #{plugins_to_install.join(' ')}"
    exec "vagrant #{ARGV.join(' ')}"
  else
    abort "Installation of one or more plugins has failed. Aborting."
  end
end

ENV['AWS_PROFILE'] = 'profile_name'

Vagrant.configure(2) do |config|
    ################################
    # Shared Settings
    ###############################
    config.vm.boot_timeout = 450

    ################################
    # Development Boxes
    ###############################
    [
        { 'name' => 'boxname_str', 'version' => 'version_str', 'revision' => 'revision_str', 'ip' => 'ip_addr', 'port' => port_int, 'book' => 'playbook_str', 'log' => bool }

    ].each do |db|
        config.vm.define db['name'], autostart: false do |host|
            host.vm.box = 'basename_str' + db['version'] + "-" + db['revision']
            host.vm.box_url = 's3://bucket_str/' + host.vm.box
            host.vm.network 'forwarded_port', guest: 22, host: db['port'], id: 'ssh'
            host.vm.network 'private_network', ip: db['ip'],
                                               nictype: 'virtio'

            host.vm.synced_folder '.', '/vagrant', disabled: true

            if db['book'] != ''
              host.vm.provision 'ansible' do |ansible|
                  # ansible.inventory_path = 'inventory/vagrant'
                  ansible.extra_vars = {
                      varname: 'value'
                  }
                  ansible.playbook = 'playbooks/' + db['book'] + '.yml'
                  ansible.verbose = db['log'] ### Change the 'log' element above to True or vvv to enable verbose logging
              end
            end
        end
    end

    # default global settings
    config.vm.provider 'virtualbox' do |vb|
        vb.gui = false
        vb.memory = '1024'
    end
end