Simple tricks about Heroku setup

If you are attempting to deploy your code to heroku for the first time, you shouldn't be able because of this error:

git push heroku master

Permission denied (publickey).
fatal: The remote end hung up unexpectedly

So you have to create a publick key (for this take a look at the github documentation and its very good article http://help.github.com/mac-set-up-git/ ) and then add you key to heroku with this:

heroku keys:add ~/.ssh/id_rsa.pub