I’ve got a docker compose setup including traefik which is working fine on Ubuntu (in WSL2) and macOS, but I recently switched to openSUSE Tumbleweed and no matter what I try, I get traefik’s 404 not found response when trying to access my API. I’ve confirmed that I can get the correct response if I directly hit the API with docker exec -it backend sh -c “curl localhost/api/v2/utils/health”. I’ve also tried out the basic whoami example from the traefik site and I still get a 404. Below are my docker-compose.yml and docker-compose.override.yml files. Wondering if there’s anyone that can give me a hand. I’ve tried a ton of things I’ve seen online, including stopping the firewalld service to see if it’s related to that, adding the networks in docker-compose.yml to the backend (the API) container, among other things.
I’m pretty bad with networking stuff, but there were a couple things I thought were odd when I started digging. Just default Tumbleweed stuff, seemingly. There was no static hostname when looking at hostnamectl. Only a transient of localhost. /etc/hostname was set to localhost, though. But I set the hostname to localhost so that’s static now. There was also a fallback to 127.0.0.1 in /etc/hosts to localhost.localdomain which I removed. Not sure if it makes sense to do this or not.
I’ve also confirmed that the server in the backend container is running on 0.0.0.0:80 (within the container). I’m also in the docker group on my machine, and am running rootless.
At this point I’m sort of thinking it’s just some Docker/OS config that I don’t have set up correctly, but not sure.
docker-compose.yml
version: "3.8"
services:
proxy:
image: traefik:v2.10
networks:
- ${TRAEFIK_PUBLIC_NETWORK?TRAEFIK_PUBLIC_NETWORK variable not set}
- default
env_file:
- .env
environment:
- STACK_NAME=${STACK_NAME?STACK_NAME variable not set}
- TRAEFIK_TAG=${TRAEFIK_TAG?TRAEFIK_TAG variable not set}
volumes:
- /var/run/docker.sock:/var/run/docker.sock
command:
# Enable Docker in Traefik, so that it reads labels from Docker services
- --providers.docker
# Add a constraint to only use services with the label for this stack
# from the env var TRAEFIK_TAG
- --providers.docker.constraints=Label(`traefik.constraint-label-stack`, `${TRAEFIK_TAG?TRAEFIK_TAG variable not set}`)
# Do not expose all Docker services, only the ones explicitly exposed
- --providers.docker.exposedbydefault=false
# Enable Docker Swarm mode
- --providers.docker.swarmmode
# Enable the access log, with HTTP requests
- --accesslog
# Enable the Traefik log, for configurations and errors
- --log
# Enable the Dashboard and API
- --api
# removed deploy.labels here since it's not useful
backend:
image: "XXXXX/${DOCKER_IMAGE_BACKEND?DOCKER_IMAGE_BACKEND variable not set}:${TAG-latest}"
env_file:
- .env
environment:
# ...
# bunch of envars
# ...
build:
context: ./backend
args:
INSTALL_DEV: ${INSTALL_DEV-false}
# removed deploy.labels here since it's not useful
volumes:
app-db-data:
networks:
traefik-public:
# Allow setting it to false for testing
external: ${TRAEFIK_PUBLIC_NETWORK_IS_EXTERNAL-true}
docker-compse.override.yml
version: "3.8"
services:
proxy:
ports:
- "80:80"
- "8090:8080"
command:
# Enable Docker in Traefik, so that it reads labels from Docker services
- --providers.docker
# Add a constraint to only use services with the label for this stack
# from the env var TRAEFIK_TAG
- --providers.docker.constraints=Label(`traefik.constraint-label-stack`, `${TRAEFIK_TAG?TRAEFIK_TAG not set}`)
# Do not expose all Docker services, only the ones explicitly exposed
- --providers.docker.exposedbydefault=false
# Disable Docker Swarm mode for local development
# - --providers.docker.swarmmode
# Enable the access log, with HTTP requests
- --accesslog
# Enable the Traefik log, for configurations and errors
- --log
- --log.level=DEBUG
# Enable the Dashboard and API
- --api
# Enable the Dashboard and API in insecure mode for local development
- --api.insecure=true
labels:
- traefik.enable=true
- traefik.http.routers.traefik-public-http.rule=Host(`${DOMAIN?DOMAIN not set}`)
- traefik.http.services.traefik-public.loadbalancer.server.port=80
backend:
ports:
- "8888:8888"
volumes:
- ./backend/app:/app
environment:
- SERVER_HOST=http://${DOMAIN?DOMAIN not set}
build:
context: ./backend
args:
INSTALL_DEV: ${INSTALL_DEV-true}
command: /start-reload.sh
labels:
- traefik.enable=true
- traefik.constraint-label-stack=${TRAEFIK_TAG?TRAEFIK_TAG not set}
- traefik.http.routers.backend-http.rule=PathPrefix(`/api`) || PathPrefix(`/docs`) || PathPrefix(`/redoc`)
- traefik.http.services.backend.loadbalancer.server.port=80
networks:
traefik-public:
# For local dev, don't expect an external Traefik network
external: false