1. Create account on account
2. Tap on EC2
3. Click on launch instance.
4. Select instance type. (micro, medium, large etc)
5. Now Most important is to download keys .pem file.
6. Now ssh -i /path/to/key ubuntu@server_ip .
7. In Security group open port defined by passenger. like 80
8. In elastic ips define ip to the instance.
9. In key pairs download key and add key for a instance.