deb_common config, box, extra: <<-SHELL
        # this sometimes gets a bad ip, and doesn't appear to be needed
        rm -f /etc/apt/sources.list.d/http_debian_net_debian.list
      SHELL
    end
  end
  'debian-9'.tap do |box|
    config.vm.define box, define_opts do |config|
      config.vm.box = 'elastic/debian-9-x86_64'
      deb_common config, box
      deb_docker config
    end
  end