Karim Hamidou
Overriding vagrant settings — 25 September 2014

This tip courtesy of my colleague Dwayne Litzenberger.

Vagrant is a great tool. My only gripe with it is that it forces everyone to share the same vm settings, which can be painful, especially when you have a slow computer. It seems there’s a ~/.vagrant.d directory for specifying overrides but it’s run before Vagrantfile, which makes it useless to override variables defined in Vagrantfile.

There’s a variety of methods for doing this but the cleanest way is adding the following lines of code to the end of your Vagrantfile:

# Local Vagrantfile overrides.
Dir.glob('Vagrantfile.local.d/*').sort.each do |path|
  load path
end
Dir.glob('Vagrantfile.local').sort.each do |path|
  load path
end

This code loads everything under Vagrantfile.local.d/ and Vagrantfile.local. For instance, my Vagrantfile.local contains:

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  # Use fewer memory and CPU resources
  config.vm.provider :virtualbox do |vbox, override|
    vbox.memory = 256
    vbox.cpus = 1
  end