Create multiple VMs with one Vagrantfile

Posted on 08-Sep-2018

VM_NAME = 'multi.local'
VM_RAM = 3000
VM_CPUS = 2

servers = [
    {
        'IP': '10.20.7.10',
        'NAME': 'server-1',
        'PORT': '12710'
    },
    {
        'IP': '10.20.7.20',
        'NAME': 'server-2',
        'PORT': '12720'
    },
]

Vagrant.configure(2) do |config|
  servers.each do |srv|
    config.vm.define srv[:NAME] do |node|

      # ubuntu 16
      node.vm.box = "ubuntu/xenial64"
      node.vm.box_check_update = false
      node.vm.hostname = srv[:NAME]
      node.vm.network :private_network, ip: srv[:IP]
      node.vm.network :forwarded_port, guest: 22, host: srv[:PORT], id: 'ssh'

      node.nfs.map_uid = Process.uid
      node.nfs.map_gid = Process.gid

      node.vbguest.auto_update = false

      node.ssh.insert_key = true

      # upload ssh id_rsa file
      node.vm.provision :file do |file|
        file.source = "~/.ssh/id_rsa"
        file.destination = "~/.ssh/id_rsa"
      end

      # upload ssh id_rsa.pub file
      node.vm.provision :file do |file|
        file.source = "~/.ssh/id_rsa.pub"
        file.destination = "~/.ssh/id_rsa.pub"
      end

      $script = <<-SCRIPT
      # make sure you have python installed if you want to use ansible
      apt-get install -y python
      cat /home/vagrant/.ssh/id_rsa.pub >> /home/vagrant/.ssh/authorized_keys
      SCRIPT

      node.vm.provision :shell, inline: $script

      node.vm.provider :virtualbox do |vb|
          vb.name = srv[:NAME]
          vb.customize([
              "modifyvm", :id,
              "--memory", VM_RAM,
              "--cpus", VM_CPUS,
              "--vram", 32
          ])
      end

    end
  end
end