Ruby - Env Vars In Vagrantfile
Last Updated: 1709Z 27NOV19 (Created: 1709Z 27NOV19)
DEV_CFG_ROOT = ENV["DEV_CFG_ROOT"]

Vagrant.configure("2") do |config|
  config.vm.box = "ubuntu/bionic64"

    config.vm.provision "file", source: "#{DEV_CFG_ROOT}/to/file_name",
                                destination: "file_name",
                                run: "always"