Ruby 1.8.7+ or 1.9.2+ required.
% gem install bundler foreman
% bundle install
% foreman start
options
% rackup config.ru -p 5000
% WS_PORT=18080 rackup config.ru -p 5000
% WS=disable rackup config.ru -p 5000
% heroku create --stack cedar
% git push heroku master
% heroku open
disable websocket
% heroku config:set WS=disable
set cache expire (sec)
% heroku config:set CACHE_EXPIRE=3600
restart
% heroku restart