I'm currently moving all of my hosting from a cheap shared hosting provider over to Amazon LightSail. Normally, when sending work over to clients for approval, I create a subdomain through my hosting provider's c-panel and upload the required files through FTP.
I am at a loss when it comes to setting up a subdomain through AWS Lightsail though. I've created a static IP and I've created the A record for the subdomain, but where do I put the directory that the files I want my client review for that subdomain sit and what IP address do I need to point the subdomain at?