I'm sorry for being dumb, but I am really stuck for few days. This is my first time using AWS. I have successfully installed LAMP web server under t1.micro on my customer's AWS account http://54.72.132.215/
following this tutorial . But I don't know what to do next after the installation. My goal is:
Setup a Domain
Run a Prestashop.
I hope you can guide me to the right path, I am totally lost. Thanks.
You need to register a domain with someone, this is outside of Amazon. Just google domain name registrars:
Then you'll need to point your domain to your Amazon EC2 instance. I would suggest using Route 53 to do this, another Amazon AWS service that makes it easier to setup and control your domains:
http://aws.amazon.com/route53/
Once you have that setup, visiting your name domain should show the default apache It works! page, if you've correctly setup your LAMP server. It'll look something like these:
You'll want to add a new vhost for your new PrestaShop site, this will allow you to setup a specific set of files to serve for your new URL, and means you can add other sites to the server later on. Just a quick google shows multiple tutorials on doing this, here's one of them:
http://calebogden.com/multiple-websites-amazon-ec2-linux-virtual-hosts/
Then follow the tutorial in the PrestaShop documentation about installing PrestaShop via the command line:
http://doc.prestashop.com/display/PS16/Installing+PrestaShop+using+the+command-line+script
Now I'm guessing that all those steps in one go is a little overwhelming, so I would suggest you break this task down into chunks and work on them one at a time, and post a few different questions on StackOverflow and probably ServerFault: https://serverfault.com/, as that is better suited to setting up servers.
To summarise you need to:
Treat each of those a separate task. This question covers lots of topics in one very general idea, the full answer to your problem wouldn't really fit in a single post.
ServerFault will probably have a lot of your answers already, regarding setting up domains and vhosts at least.