Hosting Wordpress on a AWS EC2 instance
If you want to install Wordpress by hand on EC2. It's a lot of fun to get in to AWS and play around.
Get Wordpress Running on EC2
This tutorial gets you 80% there...
http://stephen-white.blogspot.com/2012/05/how-to-set-up-wordpress-on-amazon-ec2_31.html
But if you are like me, and don't want to putz around with FTP... and you want Full Automatic Upgrades, you need a couple more things.
Enabling Wordpress Auto Updates on EC2
Follow this tutorial to get the permissions right.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/hosting-wordpress.html
Then add this to the wp-config.php:
define('FS_METHOD','direct');
Bam! You can upgrade without FTP.