websocketd turns any application using STDIN/STDOUT into a websocket server: http://t.co/fxDRUcFhHZ - simple, clever... useful!you can easily include the small linux 64bit websocketd binary and this bash.sh script with your app and remotely send commands over websocket that will execute in the app container and stream the STDOUT from the command back over websocket to the browser. this is helpful for sending commands like rake db:migrate or to explore the linux container file system after the buildpack has run. see the screenshot and video below. for the impatient, skip to about 3:00 of the short demo.
— Ilya Grigorik (@igrigorik) December 12, 2013
more instructions are on github. also see the websocketd project.