Auto-install vagrant plugins is a thing?

[joemaller]

https://github.com/hashicorp/vagrant/issues/8055#issuecomment-403171757

required_plugins = %w[vagrant-plugin-1 vagrant-plugin-2 vagrant-plugin-3]

return if !Vagrant.plugins_enabled?

plugins_to_install = required_plugins.select { |plugin| !Vagrant.has_plugin? plugin }

if plugins_to_install.any?
  system "vagrant plugin install #{plugins_to_install.join(' ')}"
  exit system 'vagrant up'
end

found via: https://silvae86.github.io/sysadmin/mojave/beta/vagrant/virtualbox/osx/macos/2018/07/10/running-vagrant-and-virtualbox-in-mojave-public-beta.html