Issue with setting upstream and VIRTUAL_HOST for jwilder/nginx-proxy. I get 500 and 503 errors. Why can't it be reached?

Question

Nginx

Hello!
Can't set up nginx config without creating "proxy by proxy".

What it's about:
raised JWILDER / nginx-proxy as a host for dynamic hosts and addressing with https.
here is jwilder + letsenctipt implementation: https://pastebin.com/MGyDnGDF
run with "docker-compose up -d --build" and enjoy.

Next, we launch our applications and get access to them directly with TLS, without connecting certificates.
On the example of running WORDPRESS:
https://pastebin.com/u/daredevil001/1/dCGgRt6k

--- there docker-compose + Dockerfile + a couple of configuration files and nginx

But what's the pain:
when I start WP - I get "welcome at 80 port". Everything is ok, in short.

But when I start Nginx-proxy and use WP, I get 503 or 500 errors...

Here is a similar discussion, but there is no solution, although it seems to me that only the correct nginx settings are needed.
https://askdev.ru/q/nginx-proksi-dlya-neskolkih-uz...
here's another one:
https://coderoad.wiki/57640631/jwilder-nginx-proxy...
and more
https://question -it.com/questions/4316518/docker-c...
many similar unanswered questions :(

If I connect "adamkdean/redirect" then still nothing:

https://0.0.0.0:443/ --- 503 Service Temporarily Unavailable
http://0.0.0.0:80 --- 503 Service Temporarily Unavailable
https://site_name.com --- 500 Internal Server Error

how to fix this

Answer 1

in general for wp expose does not work. what is jwilder, what is not - accessibility by "ports".
that's just the jwilder feature in terminating at one point, the ability to dynamically drop services without rewriting the config. Whether it is executed or not - I will check it in the future.

ports:
      - "8080:80"
# expose:
#   - 8080
#   - 80