docker installation with nginx reverse proxy

[carlomigliorini]

Hi all,
i have installated sync-in on docker according to the documentation. The https does not work, I have seen the log and the sync-in server listen to 127.0.0.1. I guess it should have been 0.0.0.0. I have extracted main.js from the docker, i have changed the port from 127.0.0.1 to 0.0.0.0, now sync-in listen to 0.0.0.0 but it does not work anyway. Any suggestion ?.
sync-in_log.txt
Thanks a lot into advance
Carlo

[ismaildasci]

the issue is docker networking. changing to 0.0.0.0 is correct but you also need to make sure the ports are exposed properly.

check your docker-compose or docker run command:

1. make sure ports are mapped correctly:

ports:
  - "443:443"
  - "80:80"

2. for nginx reverse proxy setup, sync-in container doesnt need to expose ports to host. instead use docker network:

services:
  sync-in:
    image: sync-in
    networks:
      - proxy-network
    # no ports needed if nginx is in same network

  nginx:
    image: nginx
    ports:
      - "443:443"
      - "80:80"
    networks:
      - proxy-network
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf

networks:
  proxy-network:

3. nginx config should proxy to container name:

server {
    listen 443 ssl;
    server_name your-domain.com;
    
    ssl_certificate /path/to/cert.pem;
    ssl_certificate_key /path/to/key.pem;
    
    location / {
        proxy_pass http://sync-in:PORT;  # use container name
        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-Proto $scheme;
    }
}

4. verify sync-in is actually listening:

docker exec sync-in-container netstat -tlnp

5. check if containers can reach each other:

docker exec nginx curl http://sync-in:PORT

share your docker-compose.yml and nginx config if still not working.