Problems setting up Wanderer with Traefik

[greedykangaroo01]

Hey, I was just trying to set up Wanderer on my server (Raspberry Pi 3) with Docker behind a Traefik Reverse Proxy. I also run a couple of services like Tandoor, my personal website or Wallabag behind it perfectly fine.

But when trying to set up Wanderer with a config pretty close to the default one provided in the docs, slightly modified to allow for Portainer's stack.env and to integrate with Traefik, I only get a 400 Bad Request when trying to access https://wanderer.christian-koch.eu .

This is my Docker compose file:

services:
  search:
    container_name: wanderer-search
    image: getmeili/meilisearch:v1.11.3
    environment:
      - MEILI_URL="http://search:7700"
      - MEILI_MASTER_KEY=${MEILI_MASTER_KEY}
      - MEILI_NO_ANALYTICS=true
    networks:
      - wanderer
    volumes:
      - /mnt/ssd/wanderer/data/data.ms:/meili_data/data.ms
    restart: unless-stopped
    healthcheck:
      test: curl --fail http://localhost:7700/health || exit 1
      interval: 15s
      retries: 10
      start_period: 20s
      timeout: 10s

  db:
    container_name: wanderer-db
    image: flomp/wanderer-db
    depends_on:
      search:
        condition: service_healthy
    environment:
      - MEILI_URL="http://search:7700"
      - MEILI_MASTER_KEY=${MEILI_MASTER_KEY}
      - POCKETBASE_ENCRYPTION_KEY=${POCKETBASE_ENCRYPTION_KEY}
      - ORIGIN="https://wanderer.christian-koch.eu"
    networks:
      - wanderer
    restart: unless-stopped
    volumes:
      - /mnt/ssd/wanderer/data/pb_data:/pb_data

  web:
    container_name: wanderer-web
    image: flomp/wanderer-web
    depends_on:
      search:
        condition: service_healthy
      db:
        condition: service_started
    environment:
      - MEILI_URL="http://search:7700"
      - MEILI_MASTER_KEY=${MEILI_MASTER_KEY}
      - ORIGIN="https://wanderer.christian-koch.eu"
      - BODY_SIZE_LIMIT=Infinity
      - PUBLIC_POCKETBASE_URL="http://db:8090"
      - PUBLIC_DISABLE_SIGNUP=false
      - UPLOAD_FOLDER="/app/uploads"
      - UPLOAD_USER
      - UPLOAD_PASSWORD
      - PUBLIC_VALHALLA_URL="https://valhalla.openstreetmap1.de"
      - PUBLIC_NOMINATIM_URL="https://nominatim.openstreetmap.org"
    volumes:
      - /mnt/ssd/wanderer/data/uploads:/app/uploads
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.wanderer.rule=Host(`wanderer.christian-koch.eu`)"
      - "traefik.http.routers.wanderer.entrypoints=websecure"
      - "traefik.http.routers.wanderer.tls.certresolver=letsencrypt"
      - "traefik.http.services.wanderer.loadbalancer.server.port=3000"
    networks:
      - wanderer
      - traefik
    restart: unless-stopped

networks:
  wanderer:
  traefik:
    external: true

The Traefik labels are the same as with my other services with a modified URL, port and router/service name.

I already opened a shell in my Traefik container, installed curl and curled <LOCAL_CONTAINER_IP>:<PORT> for another docker service which gives me a 200 but curling <LOCAL_CONTAINER_IP>:3000 for the Wanderer container also gives me the "400". But the logs of the Wanderer web server just say "Listening on 0.0.0.0:3000".

The only thing strange I could notice is this line repeating all over in Wanderer's database container but it looked unrelated to me: meta: (appUrl: must be a valid URL.)..

It probably is a pretty trivial problem that I just do not see after looking at the config for 2 hours straight? Thank you in advance for your help :)

[greedykangaroo01]

The solution was to remove the quotes around all my environment variables, then the array syntax would also work. Wanderer was probably the first service I used that does not strip them away automatically if not needed. Since my problem is therefore already solved I am closing this discussion as a monologue but keep it online if someone else comes across the same problem ^^