This project is deprecated. For reference you can check the depricated branch ... - though you can always use this shell script to provision Hadoop / HDP with Ambari on the cloud (AWS), we are no longer maintaining / supporting this (we switched to Ansible).
For an easier way to provison Hadoop in the cloud you should check our Cloudbreak project. For a quick try you can use our hosted / free Cloudbreak instance : https://cloudbreak.sequenceiq.com/