Using yaml to store aws creds in Vagrantfile

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :
require 'yaml'

Vagrant.configure("2") do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.

  # Every Vagrant virtual environment requires a box to build off of.
  config.vm.box = "ubuntu-aws-us-east"

    config.vm.provider :aws do |aws, override|
        aws_config = YAML::load_file(File.join(Dir.home, ".aws_secrets"))
        aws.access_key_id = aws_config.fetch("access_key_id")
        aws.secret_access_key = aws_config.fetch("secret_access_key")
        aws.keypair_name = aws_config.fetch("keypair_name")
        override.ssh.username = "ubuntu"
                override.ssh.private_key_path = aws_config.fetch("keypair_path")
    end

  config.vm.provision :puppet do |puppet|
     puppet.manifests_path = "manifests"
     puppet.manifest_file  = "init.pp"
  end
end