bad gateway or gateway timeout alternatively with traefik and directus - reverse-proxy

Question

I try to run a directus container with a reverse-proxy.
First try without reverse-proxy: it works on http://my.ip:8585
version: '2'
#
# [ server stack ]
#
services:
mysql:
image: mariadb:latest
container_name: directus-mrdb
restart: always
environment:
- MYSQL_ROOT_PASSWORD=directus
- MYSQL_DATABASE=directus
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
# If you need to specify a persistent volume for mysql
volumes:
- ./data/db:/var/lib/mysql
directus:
depends_on:
- mysql
image: getdirectus/directus:6.4
container_name: directus
# links:
# - mysql:mysql
ports:
- 8585:8080
restart: always
volumes:
# Switch between named storage, path storage
- ./data/storage:/var/www/html/storage
environment:
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_DATABASE=directus
- MYSQL_PORT_3306_TCP_ADDR=mysql
- MYSQL_PORT_3306_TCP_PORT=3306
- MYSQL_ENV_MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_USER=directus
Second try: i get an gateway timeout error on https://admin.domain.com
version: '2'
#
# [ server stack ]
#
services:
mysql:
image: mariadb:latest
container_name: directus-mrdb
restart: always
environment:
- MYSQL_ROOT_PASSWORD=directus
- MYSQL_DATABASE=directus
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
# If you need to specify a persistent volume for mysql
volumes:
- ./data/db:/var/lib/mysql
directus:
depends_on:
- mysql
image: getdirectus/directus:6.4
container_name: directus
# links:
# - mysql:mysql
ports:
- 8585:8080
restart: always
volumes:
# Switch between named storage, path storage
- ./data/storage:/var/www/html/storage
environment:
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_DATABASE=directus
- MYSQL_PORT_3306_TCP_ADDR=mysql
- MYSQL_PORT_3306_TCP_PORT=3306
- MYSQL_ENV_MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_USER=directus
labels:
- "traefik.frontend.rule=Host:admin.domain.com"
- "traefik.backend=admin"
- "traefik.port=8585"
- "traefik.frontend.entryPoints=http,https"
- "traefik.enable=true"
- "traefik.docker.network=config_traefik_network"
I understand because directus container is not connected with traefik container.
Third try: i get an bad gateway error on https://admin.domain.com
version: '2'
#
# [ server stack ]
#
services:
mysql:
image: mariadb:latest
container_name: directus-mrdb
restart: always
environment:
- MYSQL_ROOT_PASSWORD=directus
- MYSQL_DATABASE=directus
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
# If you need to specify a persistent volume for mysql
volumes:
- ./data/db:/var/lib/mysql
directus:
depends_on:
- mysql
image: getdirectus/directus:6.4
container_name: directus
# links:
# - mysql:mysql
ports:
- 8585:8080
restart: always
volumes:
# Switch between named storage, path storage
- ./data/storage:/var/www/html/storage
networks:
- config_traefik_network
environment:
- MYSQL_USER=directus
- MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_DATABASE=directus
- MYSQL_PORT_3306_TCP_ADDR=mysql
- MYSQL_PORT_3306_TCP_PORT=3306
- MYSQL_ENV_MYSQL_PASSWORD=directus
- MYSQL_ENV_MYSQL_USER=directus
labels:
- "traefik.frontend.rule=Host:admin.domain.com"
- "traefik.backend=admin"
- "traefik.port=8585"
- "traefik.frontend.entryPoints=http,https"
- "traefik.enable=true"
- "traefik.docker.network=config_traefik_network"
#
# [ networks definition ]
#
networks:
config_traefik_network:
external: true
I don't understand in this case.
There is a connection between the container.
Backend url is http://172.18.0.7:8585. The certificate seems to be well generated.
Any help will be appreciate.
Thank you in advance.
jB