Vagrant.require_version ">= 1.6.0"
    boxes = [
        {
            :name => "k8smaster",
            :interface => "enp3s0",
            :mac=> "5CA1AB1E0001",
            :eth1 => "192.168.8.10",
            :mem => "15375",
            :cpu => "1"
        },
        {
            :name => "k8snode1",
            :interface => "enp3s0",
            :mac=> "5CA1AB1E0002",
            :eth1 => "192.168.8.11",
            :mem => "15375",
            :cpu => "2"
        },
        {
            :name => "k8snode2",
            :interface => "enp3s0",
            :mac=> "5CA1AB1E0003",
            :eth1 => "192.168.8.12",
            :mem => "15375",
            :cpu => "2"
        },
        {
            :name => "k8snode3",
            :interface => "enp3s0",
            :mac=> "5CA1AB1E0004",
            :eth1 => "192.168.8.13",
            :mem => "15375",
            :cpu => "2"
        },
    ]
    Vagrant.configure(2) do |config|
      config.vm.box = "ubuntu/xenial64"
      #config.vm.box_version = "20171212.0.0"
      boxes.each do |opts|
          config.vm.define opts[:name] do |config|
            config.vm.hostname = opts[:name]
            #config.ssh.username = "ubuntu"
            #config.ssh.password = "379a8188cba8c5e64b9a429f"
            config.vm.provider "virtualbox" do |v|
              v.customize ["modifyvm", :id, "--memory", opts[:mem]]
              v.customize ["modifyvm", :id, "--cpus", opts[:cpu]]
              v.name = opts[:name]
            end
            config.vm.network "public_network", bridge: opts[:interface], type: "dhcp" , mac: opts[:mac]
          end
      end
      boxes.each do |opts|
      config.vm.define opts[:name] do |config|
        config.ssh.forward_agent = false
        config.vm.provision "shell", privileged: false, inline: <<-SHELL

          sudo swapoff -a
          sudo sed -i -r '/swap/ s/^(.*)$/#\1/g' /etc/fstab
          sudo sed -i -r '/cdrom/ s/^(.*)$/#\1/g' /etc/apt/sources.list
          sudo apt-get -y update
          sudo apt-get -y install -y docker.io
          sudo apt install -y curl
          sudo apt-get -y update && sudo apt-get install -y apt-transport-https
          sudo curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
          sudo echo "deb http://apt.kubernetes.io/ kubernetes-xenial main"> ~/kubernetes.list
          sudo mv ~/kubernetes.list /etc/apt/sources.list.d/kubernetes.list
          sudo apt-get update
          sudo apt-get install -y kubelet kubeadm kubectl
          #kubectl get nodes

          SHELL
      end
      end
      config.vm.define "k8smaster" do |k8smaster|
        k8smaster.ssh.forward_agent = false
        k8smaster.vm.provision "shell", privileged: false, inline: <<-SHELL
          echo "----------------------------- KUBERNETES MASTER -----------------------------"

          SHELL
      end
    end