Finding the webroot directory for Ghost in AWS

Question

I installed Ghost via Bitnami on AWS and registered a domain (750in100.com) from Google Domains with it. Next I tried installing an SSL certificate through Let's Encrypt, and that's where I'm running into trouble.

When going through the guided process launched by

$ sudo certbot certonly

I find myself confused when it prompts me to select the webroot. I've tried locations like:

/opt/bitnami/apps/ghost/htdocs

and

/opt/bitnami/apache2/conf

but apparently I don't understand exactly where is the webroot directory which certbot needs to know to proceed. I get an error each time like this:

Failed authorization procedure. 750in100.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://750in100.com/.well-known/acme-challenge/[long stream of seemingly random characters]

and so on. At the end of the "important notes" for the errors:

To fix these errors, please make sure that your domain name was entered correctly and the DNS A record(s) for that domain contain(s) the right IP address.

Any ideas what I might be doing wrong here?

Answer 1

Try opening that URL in your web browser to verify that you're getting a 404 error as expected.

Then use sudo find / -iname "*htdocs*" or similar (index.html, bitnami, etc.) to find the path. Try finding bitnami's config.*.json and see if the path is in there.