Use nginx on route and traefik for subdomain - docker

Question

How would the docker-compose file and nginx configuration look if I want to use traefik to proxy requests for my subdomains and use nginx on my root.
So, i want to serve up some static files to: domain.com using nginx
but i want traefik to handle traffic to: app.domain.com, app2.domain.com
here is what i have in my composer file....
version: '3'
networks:
proxy:
external: true
internal:
external: false
services:
traefik:
image: traefik:alpine
ports:
- "8080:8080"
- "80:80"
- "443:443"
restart: always
labels:
- logLevel="DEBUG"
- "traefik.backend=monitor"
- "traefik.frontend.rule=Host:monitor.domain.com"
- "traefik.port=8080"
- "traefik.frontend.entryPoints=http,https"
- "traefik.enable=true"
volumes:
- "/var/run/docker.sock:/var/run/docker.sock"
- "./traefik.toml:/traefik.toml"
- "./acme.json:/acme.json"
expose:
- "8080"
networks:
- internal
- proxy
custom-badge:
image: app
environment:
PORT: 3000
ports:
- "3000:3000"
labels:
- traefik.enabled=true
- traefik.backend=custom-badge
- traefik.frontend.rule=Host:app.domain.com
- traefik.docker.network=proxy
- traefik.port=3000
networks:
- internal
- proxy
server:
image: nginx:alpine
ports:
- "80:80"
labels:
- traefik.enabled=true
- traefik.backend=
- traefik.frontend.rule=domain.com
- traefik.docker.network=proxy
- traefik.port=80
volumes:
- "./apps/root:/etc/nginx/html:ro"
- "./nginx.conf:/etc/nginx/nginx.conf:ro"
environment:
- NGINX_HOST=domain.com
- NGINX_PORT=80
command: [nginx-debug, '-g', 'daemon off;']
depends_on:
- traefik
and my nginx.conf
http {
server {
listen 80;
server_name domain.com www.domain.com;
location / {
proxy_pass domain.com:80/;
}
}
}
Im getting port conflict errors, what am i doing wrong?

Answer 1

You cannot have two services - traefik and nginx use same host port.
You must have only one service listening on 80 port.
I would suggest configuring traefik to proxy all communication and in case of lack of subdomain forward to nginx - and what I can see - you did.
To fix your error simply remove port section from server (nginx) service definition.