Elastic ghost hosting?

I need a place to host a ghost website. Probably won’t have too much traffic in the beginning, maybe a hundred visitors per day, but probably some quite big spikes, and hopefully a growing constant of daily users.
So, I need a good place to host. I’d like to use something elastic, where I only pay for the used resources, and that scales automatically.

  • Fast
  • Full access to system for changes etc., through ssh or any other mechanism that lets me run customs tuff
  • As cheap as possible

Can someone give me a recommendation? Feel free to use an affiliate link ;)