config.before_configuration do
   ['env.local.yml', 'env.yml'].each do |file_variation|
     env_file = File.join(Rails.root, 'config', file_variation)
     YAML.load(File.open(env_file)).each do |key, value|
       ENV[key.to_s] = value unless ENV[key.to_s].present?
     end if File.exists?(env_file) && YAML.load(File.open(env_file))
   end
 end