New install - getting error 502

Seafile Server Docker
1

I have a fresh install of seafile
when I try to go to my IP, 127.0.0.1
I get a 502 bad gateway

what am I missing or doing wrong
I have followed directions in the install documents and I watched 4 videos of others doing exactly what I did, but their worked.
so what am I missing?

Screenshot from 2025-10-23 20-19-29
Screenshot from 2025-10-23 20-19-291067×484 50.5 KB

this is my docker-compose.yml

services:
  db:
    image: mariadb:10.11
    container_name: seafile-mariadb
    environment:
      - MYSQL_ROOT_PASSWORD=xxxxxxxx  # Required, set the root's password of MySQL service.
      - MYSQL_LOG_CONSOLE=true
      - MARIADB_AUTO_UPGRADE=1
    volumes:
      - ./data/seafile-mysql/db:/var/lib/mysql  # Required, specifies the path to MySQL data persistent store.
    networks:
      - seafile-net

  memcached:
    image: memcached:1.6.18
    container_name: seafile-memcached
    entrypoint: memcached -m 256
    networks:
      - seafile-net
          
  seafile:
    image: seafileltd/seafile-mc:11.0-latest
    container_name: seafile
    ports:
      - "80:80"

    volumes:
      - ./data/seafile-data:/shared   # Required, specifies the path to Seafile data persistent store.
    environment:
      - DB_HOST=db
      - DB_ROOT_PASSWD=xxxxxxxx  # Required, the value should be root's password of MySQL service.
      - TIME_ZONE=Etc/UTC  # Optional, default is UTC. Should be uncomment and set to your local time zone.
      - SEAFILE_ADMIN_EMAIL=scott.paperwork@gmail.com # Specifies Seafile admin user, default is 'me@example.com'.
      - SEAFILE_ADMIN_PASSWORD=soundman38     # Specifies Seafile admin password, default is 'asecret'.
      - SEAFILE_SERVER_LETSENCRYPT=false   # Whether to use https or not.
      - SEAFILE_SERVER_HOSTNAME=127.0.0.1 # Specifies your host name if https is enabled.
    depends_on:
      - db
      - memcached
    networks:
      - seafile-net

networks:
  seafile-net:

this is my NGINX conf file

# -*- mode: nginx -*-
# Auto generated at 10/24/2025 02:47:14
server {
listen 80;
server_name 127.0.0.1;

    client_max_body_size 10m;

    location / {
        proxy_pass http://127.0.0.1:8000/;
        proxy_read_timeout 310s;
        proxy_set_header Host $http_host;
        proxy_set_header Forwarded "for=$remote_addr;proto=$scheme";
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Connection "";
        proxy_http_version 1.1;

        client_max_body_size 0;
        access_log      /var/log/nginx/seahub.access.log seafileformat;
        error_log       /var/log/nginx/seahub.error.log;
    }

    location /seafhttp {
        rewrite ^/seafhttp(.*)$ $1 break;
        proxy_pass http://127.0.0.1:8082;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        client_max_body_size 0;
        proxy_connect_timeout  36000s;
        proxy_read_timeout  36000s;
        proxy_request_buffering off;
        access_log      /var/log/nginx/seafhttp.access.log seafileformat;
        error_log       /var/log/nginx/seafhttp.error.log;
    }

    location /notification/ping {
        proxy_pass http://127.0.0.1:8083/ping;
        access_log      /var/log/nginx/notification.access.log seafileformat;
        error_log       /var/log/nginx/notification.error.log;
    }

    location /notification {
        proxy_pass http://127.0.0.1:8083/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        access_log      /var/log/nginx/notification.access.log seafileformat;
        error_log       /var/log/nginx/notification.error.log;
    }

    location /seafdav {
        proxy_pass         http://127.0.0.1:8080;
        proxy_set_header   Host $host;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Host $server_name;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_read_timeout  1200s;
        client_max_body_size 0;

        access_log      /var/log/nginx/seafdav.access.log seafileformat;
        error_log       /var/log/nginx/seafdav.error.log;
    }

    location /media {
        root /opt/seafile/seafile-server-latest/seahub;
    }

}
2

I think the error 502 is because your nginx can’t talk to seafile as it is configured. Your nginx configured to listen on port 80 ( “listen 80;”), but docker is also configured to listen on port 80 ( 'ports: - “80:80” '). They can’t both use port 80 on the same machine, so whichever gets there first will have port 80, and the other will fail.

The nginx config is trying to forward to port 8000, 8082, and 8083 (depending on the path in the URL). This looks like the nginx config used before docker. For docker we can just forward everything to a single port, and it will get sorted out inside the container.

So, what I think you need to do:
1 - Change seafile docker to listen on a non-conflicting port. Lets pick 8008 for this (this is an example, use whatever makes sense to you). In the ports section, change “80:80” to “8008:80”.
2 - Change the nginx config to forward everything to the seafile docker port (8008 in this case):

server {
listen 80;
server_name 127.0.0.1;

    client_max_body_size 10m;

    location / {
        proxy_pass http://127.0.0.1:8008/;
        proxy_read_timeout 310s;
        proxy_set_header Host $http_host;
        proxy_set_header Forwarded "for=$remote_addr;proto=$scheme";
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Connection "";
        proxy_http_version 1.1;

        client_max_body_size 0;
        access_log      /var/log/nginx/seahub.access.log seafileformat;
        error_log       /var/log/nginx/seahub.error.log;
    }
}

You don’t need any other sections after that.

3 - You are using seafile version 11. It would probably be a good idea to switch to the current seafile release, version 13, or the older still supported release version 12.