This is for a SINGLE WordPress instance ONLY - you cannot install a second site
Along with the many other reviews that give this a 1 or 2 stars because you cannot upgrade your PHP version, another major downfall is the inability to install multiple WordPress sites (*NOT* Multisite.)
bitnami has 'discontinued' the ability to install more than one WordPress instance on THEIR stack.
From searching their support site, and finding: "Install multiple WordPress modules" - https://docs.bitnami.com/installer/apps/wordpress-pro/configuration/install-several-wordpress-modules/
-- 404 - "The Page You Were Looking For Doesn't Exist. You may have mistyped the address or the page may have moved."
From their support from May 2019:
"Thanks for using Bitnami. I think it is easier (and safer too) if you install a fresh new Bitnami WordPress module on your current Bitnami installation as mentioned in this guide - https://docs.bitnami.com/installer/apps/wordpress/configuration/install-several-wordpress-modules/154"
-- note that the page now redirects to "Learn About Bitnami PHP Application Modules Deprecation"
Yep, this is a complete pain... The bitnami image is great and not knocking any of their work/efforts however - to upgrade vulnerable libraries cannot be done. You will be at the mercy of Bitnami to update and release, and then for AWS to make the new version available to remediate any vulnerabilities. Essentially if you use the latest version from AWS for Bitnami it ships with vulnerabilities out of the box!
Sorry to hear your experience did not go well. The Bitnami modules were deprecated months ago and we removed the information from our documentation. As you may know, we have made available guides to perform common actions in the solution. For example, you can find the information about how to deploy a PHP application on top of a running instance here (https://docs.bitnami.com/aws/apps/wordpress/administration/create-custom-application-php/). For times when you need additional support, we provide support from our engineers in our Community forum (https://community.bitnami.com/). We would appreciate if you could open a thread referencing this review at our community forum, to allow our team to review the issues you encountered and improve our documentation and application based on your feedback. Thanks!