Unable to connect to site after docker creation

[varadins]

Attempted Debugging

• [x] I have read the debugging page

Searched GitHub Issues

• [x] I have searched GitHub for the issue.

Describe the Scenario

I have installed bookstack using a docker compose template. I am not able to access the site "Unable to connect" The logs do not show anything amazing. Could you please assist?

docker-compose.yml
version: '3'
services:
  bookstack:
    image: solidnerd/bookstack
    container_name: bookstack
    restart: always
    ports:
      - "6875:80"
    volumes:
      - ./data:/var/www/html/public/uploads
      - ./env:/var/www/html/.env
    environment:
      - PUID=1000
      - PGID=1000
      - APP_URL=http://localhost:6875
      - APP_KEY=h9KWnvTxXLWnb8npzxhMC5jokddadoMM
      - DB_HOST=db
      - DB_DATABASE=bookstack
      - DB_USERNAME=bookstack_user
      - DB_PASSWORD=secret
    depends_on:
      - db
  db:
    image: mysql:5.7
    container_name: bookstack-mysql
    restart: always
    environment:
      - MYSQL_DATABASE=bookstack
      - MYSQL_USER=bookstack_user
      - MYSQL_PASSWORD=secret
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
    volumes:
      - ./db:/var/lib/mysql

env file

APP_NAME=BookStack
APP_ENV=production
APP_DEBUG=false
APP_LOG=daily
APP_URL=http://localhost:6875
APP_KEY=base64:NNuRx8SxDwiPES2c0ZAftX7iV0EOx41VZJHwSwIlNy8=
DB_CONNECTION=mysql
DB_HOST=db
DB_PORT=3306
DB_DATABASE=bookstack
DB_USERNAME=bookstack_user
DB_PASSWORD=secret

MAIL_DRIVER=log

Log files:

docker@docker:~/docker/bookstack$ docker logs bookstack
wait-for-db: waiting for db:3306
wait-for-db: done
Starting Migration...

   INFO  Nothing to migrate.  

Clearing caches...

   INFO  Application cache cleared successfully.  


   INFO  Compiled views cleared successfully.  

AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 192.168.128.3. Set the 'ServerName' directive globally to suppress this message
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 192.168.128.3. Set the 'ServerName' directive globally to suppress this message
[Tue Oct 14 23:12:50.149778 2025] [mpm_prefork:notice] [pid 1:tid 1] AH00163: Apache/2.4.65 (Debian) PHP/8.4.13 configured -- resuming normal operations
[Tue Oct 14 23:12:50.149822 2025] [core:notice] [pid 1:tid 1] AH00094: Command line: 'apache2 -D FOREGROUND'

Exact BookStack Version

latest

Log Content

Hosting Environment

Docker compose Ubuntu 24.04.3 LTS