Global redirect

Traefik Traefik v2 (latest)
1

I'm expecting the following to redirect all requests to reddit.com, but instead it returns a 404. What is wrong here?

version: "2"

services:
  traefik:
    image: traefik:2.1
    container_name: "traefik"
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
    labels:
      - "traefik.http.routers.http-catchall.rule=hostregexp(`{host:.+}`)"
      - "traefik.http.routers.http-catchall.entrypoints=web"
      - "traefik.http.routers.http-catchall.middlewares=redirect-to-reddit@docker"
      - "traefik.http.middlewares.redirect-to-reddit.redirectregex.regex=^http://.*"
      - "traefik.http.middlewares.redirect-to-reddit.redirectregex.replacement=http://reddit.com"
2

I note that if I instead add an additional docker container/service, for example containous/whoami, and move the labels from traefik to whoami, then the global catchall works as expected...

3

Hello,

It's because you forget to put traefik.enable=true label on the container.
As you are using --providers.docker.exposedbydefault=false this label is mandatory.

https://docs.traefik.io/v2.1/routing/providers/docker/#traefikenable

version: "3.7"

services:
  traefik:
    image: traefik:v2.1.2
    container_name: traefik
    command:
      - --api.insecure=true
      - --providers.docker=true
      - --providers.docker.exposedbydefault=false
      - --entrypoints.web.address=:80
    ports:
      - 80:80
      - 8080:8080
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    labels:
      traefik.enable: true

      traefik.http.routers.http-catchall.rule: hostregexp(`{host:.+}`)
      traefik.http.routers.http-catchall.entrypoints: web
      traefik.http.routers.http-catchall.middlewares: redirect-to-reddit@docker

      traefik.http.middlewares.redirect-to-reddit.redirectregex.regex: ^http://(.+)
      traefik.http.middlewares.redirect-to-reddit.redirectregex.replacement: http://reddit.com
4

How to do that when running Traefik inside of kubernetes?