Letsencrypt with an application running in Docker container

General
1

I have a website running on a docker container and I want it to be secure using Letsencrypt.
There is also a cname record resolving on an aws load balancer dns.
To be honest, I don’t know how to proceed. I’m confused because the app is not hosted in /var/www/nginx. I need your help, please.

Thank you for your help

2

Hello!
I was setup my site with this reference


I wish it’s Work For You.
Thank You

3

Thank you very much for your help

4

Welcome
It’s Working Or not?

5

We followed the document and it is working.
Thank you again.