traefik with docker breaks when I setup networks - docker

Question

I'm trying to setup docker networks with traefik on an existing website.
Before my tries, it had this:
version: "3"
services:
database:
build:
context: ./database
environment:
MYSQL_DATABASE: '${MYSQL_DATABASE}'
MYSQL_USER: '${MYSQL_USER}'
MYSQL_PASSWORD: '${MYSQL_PASSWORD}'
MYSQL_ROOT_PASSWORD: '${MYSQL_ROOT_PASSWORD}'
volumes:
- ./database/data:/var/lib/mysql
restart: always
php-http:
build:
context: ../
dockerfile: ./docker/php-apache/Dockerfile
args:
MAIN_DOMAIN: '${MAIN_DOMAIN}'
ALL_DOMAINS: '${ALL_DOMAINS}'
PROJECT_FOLDER_NAME: '${PROJECT_FOLDER_NAME}'
WEBSITE_USER_PASSWORD: '${WEBSITE_USER_PASSWORD}'
depends_on:
- database
- mailserver
volumes:
- ./apachelogs:/var/log/apache2
- ./apachelogs/auth.log:/var/log/auth.log
- './symfonylogs:/var/www/html/mywebsite/var/log/'
labels:
- traefik.http.routers.php-http.tls=true
- traefik.http.routers.php-http.tls.certresolver=letsencrypt
- traefik.http.services.php-http.loadbalancer.server.port=80
- traefik.enable=true
- traefik.http.routers.php-http.rule=Host(`mystuff.com`, `en.mystuff.com`)
- 'traefik.http.routers.php-http.tls.domains[0].main=mystuff.com'
- 'traefik.http.routers.php-http.tls.domains[1].main=en.mystuff.com'
restart: always
mailserver:
[doesntmatter]
traefik:
image: traefik:v2.9
command:
- --providers.docker
- --providers.docker.exposedByDefault=false
- --entrypoints.web.address=:80
- --entrypoints.websecure.address=:443
- --entrypoints.web.http.redirections.entryPoint.to=websecure
- --entrypoints.web.http.redirections.entryPoint.scheme=https
- --entrypoints.web.http.redirections.entrypoint.permanent=true
- --certificatesresolvers.letsencrypt.acme.email=heyho#gmail.com
- --certificatesresolvers.letsencrypt.acme.storage=acme.json
- --certificatesresolvers.letsencrypt.acme.httpchallenge.entrypoint=web
ports:
- 80:80
network_mode: host
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- ./acme.json:/acme.json
It works fine.
Then I tried doing this :
docker network create web
And in the yml:
networks:
web:
external: true
internal:
external: false
For php-http:
networks:
- internal
- web
and (I tried without and with it)
- "traefik.docker.network=web"
In database and mailserver :
networks:
- internal
In traefik:
networks:
- web
and (tried without and with it)
- "traefik.docker.network=web"
It didn't work at all, my website wasn't accessible anymore.
Then as said there : https://doc.traefik.io/traefik/user-guides/docker-compose/basic-example/
I tried :
networks:
web: {}
Then in php-http and traefik:
networks:
- web
It didn't work either. Their example (with whoami) works on my server. (Tried with a local curl). Like always, this makes me hate sysadmin very much, does anyone has any clue on what's wrong there? It doesn't make anysense to me. I followed everything, tried everything.
Thank you