gistfile1.rb

require 'json'
require 'sinatra'

set :port => 8080, :bind => '0.0.0.0'

get '/images' do
	fs = Dir.glob('/home/user/packer-resources/images/*')
	h = {}
	h[:images] = []
	fs.each do |f|
		h[:images] << f
	end
	h.to_json
end