Resource: https://devcenter.heroku.com/articles/rack

• gem install heroku

• heroku create

• git push heroku master

• Potential Error: Permission denied public keys

• Why: Heroku needs to have you public id_rsa key to interact with you GitHub repository on your behalf.

• Solution: heroku keys:add ~/.ssh/id_rsa.pub This command pushes the public key up to Heroku so it may interact with you repository.

• heroku open opens your heroku app your default browser

• heroku logs will display the log information to help debug errors

• heroku ps:scale web=1 may be required to scale the application's Heroku web workers, or processes, from zero to one