Dockerized Wordpress is having Nginx Proxy Issues

Question

I have a Dockerized Nginx Proxy that sits on my server.

One of my sites is a Docker-Compose Wordpress site. They are separate container and must remain that way.

When I update my Site Url in the Settings I can still log into my Admin Dashboard, but I cannot reach my actual site. I receive a 502 Gateway Error from Nginx.

Nginx Server Block:

   server{

        listen 80;
        server_name test.com;
        client_max_body_size 2M;
        location / {
          proxy_pass http://XXX.XXX.XXX.XXX:8001;
        }
   } 

Wordpress docker-compose.yml:

version: '2'
services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: password
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: password

   wordpress:
     depends_on:
       - db
     build: ./wordpress
     ports:
       - "8001:80"
     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_PASSWORD: password
     volumes: 
       - ./uploads.ini:/usr/local/etc/php/conf.d/uploads.ini 
       - ./php.ini:/usr/local/etc/php/conf.d/php.ini 
volumes:
    db_data:

Answer 1

Your docker container is binding port 80 to 8185 and your nginx proxy is pointing at port 8001 when it should be pointing at 8185.