404 when using PathPrefix or Path

Traefik Traefik v2
1

I have been trying to configure traefik as a reverse proxy for Streamlit. "traefik.http.routers.streamlit.rule=Host(streamlit.localhost)" works, but streamlit.localhost URL returns properly. But "traefik.http.routers.streamlit.rule=Path(/streamlit)" doesn't work. localhost/streamlit just returns 404.

This is my docker-compose file.

version: "3.3"

services:

  traefik:
    image: "traefik:v2.6"
    container_name: "traefik"
    restart: unless-stopped
    command:
      #- "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
    networks:
      - traefik
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  whoami:
    image: "traefik/whoami"
    container_name: "simple-service"
    networks:
      - traefik
    labels:
      - "traefik.enable=true"
      # This works
      # - "traefik.http.routers.whoami.rule=Host(`whoami.localhost`)"
      # This works
      - "traefik.http.routers.whoami.rule=PathPrefix(`/whoami`)"
      - "traefik.http.routers.whoami.entrypoints=web"

  streamlit:
    image: "streamlit:develop"
    container_name: "streamlit"
    command: pipenv run streamlit run streamlit-app.py
    restart: unless-stopped
    ports:
      - 8501
    networks:
      - traefik
    labels:
      - "traefik.enable=true"
      # This doesn't work
      # - "traefik.http.routers.streamlit.rule=PathPrefix(`/streamlit`)"
      # This doesn't work
      # - "traefik.http.routers.streamlit.rule=Path(`/streamlit`)"
      # This works
      # - "traefik.http.routers.streamlit.rule=Host(`streamlit.localhost`)"
      # `streamlit.localhost` works but `localhost/streamlit` doesn't work
      - "traefik.http.routers.streamlit.rule=Host(`streamlit.localhost`) || PathPrefix(`/streamlit`)"
      - "traefik.http.routers.streamlit.entrypoints=web"
      - "traefik.http.services.streamlit.loadbalancer.server.port=8501"

networks:
  traefik: 
    driver: bridge

Streamlit supports Streamlit Configuration. I've also tried setting the configuration, but couldn't get localhost/streamlit URL working.

[server]

# The base path for the URL where Streamlit should be served from.
# Default: ""
baseUrlPath = "/streamlit"
1 Like
2

Also very interested in this one, anyone come up with a solution? I can also only get it to work just a Host, buth Paths do not work. Much appreciated.