Comment by Sadranyc

I'm just starting with Rails and I've found Heroku the easiest Rails hosting provider. They don't give you a shared server machine, you upload your application directly, and there's even a free usage tier if your app is low-traffic.

Using git, you just push the app to Heroku with your credentials and you're set.

Also, you can upgrade or downgrade the maximum performance as needed by the spikes of traffic so you never pay for more that you use.