Drop a gemrc and install packages to Chef's ruby context

test.rb

template '/root/.gemrc' do
  source 'gemrc.erb'
  action :create
  notifies :run, 'ruby_block[refresh_gemrc]', :immediately
end

# Thanks to http://lists.opscode.com/sympa/arc/chef/2013-12/msg00237.html
ruby_block 'refresh_gemrc' do
  action :nothing
  block do
    Gem.configuration = Gem::ConfigFile.new []
  end
end

gem_package 'di-ruby-lvm' do
  gem_binary '/opt/chef/embedded/bin/gem'
  action :install
end