How to route to docker containers properly?

Traefik Traefik v2
1

I don't get how I should set up the routes to my containers. In my local home network I have a raspberry pi that runs ubuntu and docker (raspy.local is the host name of the raspberry pi). I want my containers to be accessible via http://raspy.local/<servicename>.

Here is my docker-compose.yml for traefik and whoami:

version: '3'

networks:
  home_network:
    name: home_network

services:
  traefik:
    container_name: traefik
    image: traefik:v2.4
    command:
      - --api.insecure=true
      - --providers.docker=true
      - --providers.docker.exposedbydefault=false
      - --global.checknewversion=true
      - --global.sendanonymoususage=false
      - --api.dashboard=true
      - --entryPoints.web.address=:80
      - --entryPoints.websecure.address=:443
      - --entrypoints.dnstcp.address=:53/tcp
      - --entrypoints.dnsudp.address=:53/udp
    network_mode: host
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ${DOCKER_DATA}/traefik:/etc/traefik/

  whoami:
    container_name: whoami
    image: traefik/whoami
    labels:
      - traefik.enable=true
      - traefik.http.routers.whoami.entrypoints=web
      - traefik.http.routers.whoami.rule=Host(`raspy.local`) && Path(`/whoami`)
    networks:
      - home_network

So far everything seems to work, because when I go to http://raspy.local/whoami I land on the whoami page. Perfect. But now I cannot seem to be able to make this work with any other container. For instance, here's Grafana:

[continues from file above]
  grafana:
    container_name: grafana
    image: grafana/grafana
    labels:
      - traefik.enable=true
      - traefik.http.routers.grafana.entrypoints=web
      - traefik.http.routers.grafana.rule=Host(`raspy.local`) && Path(`/grafana`)
      - traefik.http.services.grafana.loadbalancer.server.port=3000
    networks:
      - home_network

In this case when I go to http://raspy.local/grafana I get 404 page not found. Another example, influxDB:

[continues from file above]
  influxdb:
    container_name: influxdb
    image: influxdb:latest
    volumes:
      - ${DOCKER_DATA}/influxdb/data:/var/lib/influxdb2
      - ${DOCKER_DATA}/influxdb/influxdb.conf:/etc/influxdb2/config.yml:ro
    environment:
      - INFLUXDB_ADMIN_USER=${INFLUXDB_USERNAME}               # from .env
      - INFLUXDB_ADMIN_PASSWORD=${INFLUXDB_PASSWORD}.   # from .env
    labels:
      - traefik.enable=true
      - traefik.http.routers.influx.entrypoints=web
      - traefik.http.routers.influx.rule=Host(`raspy.local`) && Path(`/influxdb`)
      - traefik.http.services.influx.loadbalancer.server.port=8086
    networks:
      - home_network

This time when I go to http://raspy.local/influxdb I see a blank page, but the web inspector shows that

Screen Shot 2021-04-18 at 5.54.12 PM
Screen Shot 2021-04-18 at 5.54.12 PM1080×126 33.8 KB

I haven't had any luck with other containers as well. what am I missing??

2

What will happen if you remove whoami service.
and leave grafana and influxdb

3

Nothing, it's all the same. Also, I've noticed that when I go to http://raspy.local/grafana, the address field changes on its own to http://raspy.local/login and it shows 404 page not found.

4

Hello

I think you have to "play" with StripPrefix

Use a StripPrefix middleware if your backend listens on the root path ( / ) but should be exposed on a specific prefix.

https://doc.traefik.io/traefik/middlewares/stripprefix/

5

Path is a hard match, you will likely want to use PathPrefix

Specifically for Grafana on path.