Error 502 access from internet

[jxrse]

After manually installing Ampache with docker-compose.yml on my Raspberry Pi 4
I access correctly locally but I cannot do it through the internet
I get an NGINX 502 error
I have ports 85:80 that are forwarded to 80 because I have another application on that port

I have it installed in / var / www / html but nothing does not work

502 Bad Gateway
openresty

[kuzi-moto]

Hi @jxrse!

Could you elaborate on how exactly you set up Ampache? There are a couple statements in your post that are not immediately clear. For example:

I get an NGINX 502 error

Are you using Nginx as a reverse proxy? The Ampache docker image uses the Apache web server.

have it installed in / var / www / html

What exactly did you install there? If you used docker-compose then there is no specific place you need to put the docker-compose.yml file.

[jxrse]

Hello Kuzi-Moto thanks for your answer
I have it installed on a Raspberry PI4 through docker with the file that I mention
The user directly indicates it to me in portainer, a container manager for docker
I don't use nginx directly ... to be able to access my raspberry pi from the internet I have NGINX PROXY MANAGER configured and it is in ports: 443: 443 443: 443 80:80 80:80 81:81 81:81
Since they are the ones you need by default, with which I have port 85 forwarded, which is the one that I access locally to ampache to port 80
Installation Path: / var / www / html / ampache
Regardless, check in a different one and the error is exactly the same.
I copy you my docker file from the installation

version: '3'
services:
ampache:
image: ampache / ampache: latest
container_name: ampache
restart: unless-stopped
ports:
- 85:80
volumes:
- ./data/config:/var/www/config
- ./data/log:/var/log/ampache
- ./data/media:/media
- ./data/mysql:/var/lib/mysql

[jxrse]

Nobody can help me ? @kuzi-moto

[wagnered]

From the Mozilla web site:

Note: A Gateway might refer to different things in networking and a 502 error is usually not something you can fix, but requires a fix by the web server or the proxies you are trying to get access through.

From all those ports you list, an expert on networks might be required. ;'> The Ampache developers aren't network experts.

I suggest that you start with a simple host allowing ports 443 and 80. when that's working, add the reverse proxy if you really need it.