Metabase Behind Traefik

I ended up switching to grafana instead, as it was easy to setup and supported sub paths much better.

The docker container in compose ended up being:

grafana:
    image: grafana/grafana-oss:9.5.15
    restart: always
    depends_on:
      - grafana_db
    environment:
      GF_DATABASE_TYPE: postgres
      GF_DATABASE_HOST: grafana_db:5432
      GF_DATABASE_NAME: grafana
      GF_DATABASE_USER: grafana
      GF_DATABASE_PASSWORD: passwordhere
      GF_DATABASE_SSL_MODE: disable
      GF_SECURITY_ADMIN_USER: admin
      GF_SECURITY_ADMIN_PASSWORD: passwordhere
      GF_SERVER_SERVE_FROM_SUB_PATH: true
      GF_SERVER_DOMAIN: localhost
      GF_SERVER_ROOT_URL: http://localhost:8088/reporting/
      GF_ENABLE_GZIP: true
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=proxy"
      - "traefik.http.routers.reporting.priority=100"
      - "traefik.http.routers.reporting.rule=PathPrefix(`/reporting`)"
      - "traefik.http.services.reporting.loadbalancer.server.port=3000"
    volumes:
      - ./grafana-data:/var/lib/grafana
      - ./resources/grafana-provisioning:/etc/grafana/provisioning