Traefik to route to nodered

Traefik Traefik v2
1

I want to use traefik (pi.local) to route to nodered dashboard (pi.local:1880/ui).
Im having trouble getting it working. Currently its changing pi.local to https://pi.local and page not found.

traefik.yml

entryPoints:
  http:
    address: ":8081"
providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"
    exposedByDefault: false
  file:
    filename: /config.yml

config.yml

http:
  routers:
    nodered:
      entryPoints:
        - http
      rule: "Host(`pi.local`)"
      #middlewares:
      #  - add-ui
      service: nodered

  services:
    nodered:
      loadBalancer:
        servers:
          - url: "pi.local:1880/ui"

and my docker compose

services:
  traefik:
    image: traefik:v2.9
    container_name: traefik
    environment:
      - PUID=1000
      - PGID=1000
    restart: always
    ports:
      - "80:8081"
      - "8080:8080"
    network_mode: host
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /etc/localtime:/etc/localtime:ro
      - /home/pi/Docker/traefik/traefik.yml:/traefik.yml:ro
      - /home/pi/Docker/traefik/config.yml:/config.yml:ro
2

Try adding http:// to loadbalancer URL, see docs.

3

I already have http://, im not sure why it has not appeared in my original post.

4

First I would try removing "ui" from loadbalancer url.

If it still does not work, go into your traefik container and check if you can connect to the other container.

docker exec -it <traefik-container> sh
wget 'http://pi.local:1880'

In general:

Enable Traefik dashboard, debug log and access log to see whats happening.

5

Thanks!
I found i can not ping the hostname from within the docker container. Ive changed to the ip address, and made some changes, now its working!
I'll post the complete files for anyone else looking to get it working:

config.yml:

http:
  routers:
    nodered:
      rule: "Host(`pi.local`) || Host(`192.168.1.3`)"
      middlewares:
        - add-ui
      service: nodered

  services:
    nodered:
      loadBalancer:
        servers:
          - url: "http://192.168.1.3:1880"

  middlewares:
    add-ui:
      addPrefix:
        prefix: "/ui"

traefik.yml

# Log level INFO|DEBUG|ERROR
log:
  level: DEBUG

api:
  dashboard: true
  insecure: true

entryPoints:
  http:
    address: ":80"

  web:
    address: ":8081"
    http:
      redirections:
        entryPoint:
          to: http
          scheme: http

providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"
    exposedByDefault: false
  file:
    filename: /config.yml