force ohai ec2 plugin for aws instances

gistfile1.rb

## for an unknown reason, on a subset of instances the
## ohai ec2 data is not populated unless this file exists
## so touch it until we figure out why

[ '/etc/chef', '/etc/chef/ohai', '/etc/chef/ohai/hints' ].each do |dir|
  directory(dir).run_action(:create)
end

## this plugin file just needs to exist to able the plugin
ec2_json = file '/etc/chef/ohai/hints/ec2.json' do
  content ''
end

## create during compile phase
ec2_json.run_action(:create)

## reloads node attributes during run
reload_ec2 = ohai 'reload_ec2' do
  plugin 'ec2'
  action :nothing
end

## force the reload now if plugin updated
if ec2_json.updated?
  reload_ec2.run_action(:reload)
end