A vagrant vm cluster for kubernetes

Vagrantfile

# -*- mode: ruby -*- 
# vi: set ft=ruby : 
hosts = { 
  "master" => {
    :ip => "192.168.66.10", 
    :cpus => 1,
    :memory => 1024
  },

  "node1" => {
    :ip => "192.168.66.11",
    :cpus => 3,
    :memory => 4096
  }
} 

Vagrant.configure("2") do |config| 
  # always use Vagrants insecure key 
  config.ssh.insert_key = false 
  # forward ssh agent to easily ssh into the different machines 
  config.ssh.forward_agent = true 
 
  check_guest_additions = false 
  functional_vboxsf     = false 
 
  config.vm.box = "bento/ubuntu-16.04" 
  hosts.each do |name, m| 
    config.vm.define name do |machine|
      machine.vm.hostname = name
      machine.vm.network :private_network, ip: m[:ip]
      machine.vm.provider "virtualbox" do |v| 
        v.name = name 
        v.cpus = m[:cpus]
        v.memory = m[:memory]
      end 
    end 
  end 

  config.vm.provision "shell", inline: <<-SHELL
     echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" > /etc/apt/sources.list.d/k8s.list
     curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
     apt-get update
     apt-get upgrade -y
     apt-get install -y docker.io kubeadm kubelet
  SHELL
end