404 when using PathPrefix rule

Traefik Traefik v2
1

I am using the docker-compose file below, but for some reason the address hostname.tld/traefik is showing a plain 404 page not found text.

version: "3.3"

services:
  traefik:
    image: "traefik:v2.0.2"
    container_name: "traefik"
    restart: always
    networks:
      - traefik_proxy
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=true"
      - "--entrypoints.web.address=:8080"
      - "--providers.docker.watch=true"
    ports:
      - "443:443"
      - "8080:8080"
      - "80:80"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /home/bruno/traefik/traefik.toml:/traefik.toml
      - /home/bruno/traefik/acme.json:/acme.json
      - /home/bruno/traefik/error.log:/error.log
    labels:
      - "traefik.enable=true"
      - "traefik.port=8080"
      - "traefik.docker.network=traefik_proxy"
      - "traefik.http.routers.traefik.rule=Host(`hostname.tld`) && PathPrefix(`/traefik`)"
      - "traefik.http.routers.traefik.tls"
      - "traefik.http.middlewares.traefik.headers.SSLRedirect=true"
      - "traefik.http.middlewares.traefik.headers.STSSeconds=315360000"
      - "traefik.http.middlewares.traefik.headers.browserXSSFilter=true"
      - "traefik.http.middlewares.traefik.headers.contentTypeNosniff=true"
      - "traefik.http.middlewares.traefik.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.traefik.headers.SSLHost=${DOMAIN_NAME}"
      - "traefik.http.middlewares.traefik.headers.STSIncludeSubdomains=true"
      - "traefik.http.middlewares.traefik.headers.STSPreload=true"

networks:
  traefik_proxy:
    external:
      name: traefik_proxy
  default:
    driver: bridge

However, in a similar setup, I am running a container on a specific host without any problems:

version: '2.2'

services:
  huggin:
    image: huginn/huginn
    restart: always
    container_name: huginn
    networks:
      - traefik_proxy
    ports:
      - 3000:3000
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.huginn.rule=Host(`huginn.${DOMAIN_NAME}`)"
      - "traefik.http.routers.huginn.tls"
      - "traefik.port=3000"
      - "traefik.docker.network=traefik_proxy"
      - "traefik.http.middlewares.huginn.headers.SSLRedirect=true"
      - "traefik.http.middlewares.huginn.headers.STSSeconds=315360000"
      - "traefik.http.middlewares.huginn.headers.browserXSSFilter=true"
      - "traefik.http.middlewares.huginn.headers.contentTypeNosniff=true"
      - "traefik.http.middlewares.huginn.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.huginn.headers.SSLHost=${DOMAIN_NAME}"
      - "traefik.http.middlewares.huginn.headers.STSIncludeSubdomains=true"
      - "traefik.http.middlewares.huginn.headers.STSPreload=true"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /home/bruno/huginn/mysql:/var/lib/mysql 
    environment:
      - TZ=Europe/London

networks:
  traefik_proxy:
    external:
      name: traefik_proxy
  default:
    driver: bridge

I ran out of ideas and have been back and forth in the documentation. Does anyone have any ideas on what could cause this?

2

the labels are not flags so you have to define key=value

- "traefik.http.routers.traefik.tls=true"
3

Thank you @ldez, I missed that. But still, that doesn't solve the path prefix not working as expected. The difference now is that I get a "bad gateway" error.

4

This label is a v1 label so it's not compatible with v2.

the port 8080 is already used by the internal treafik entrypoint.

It's a middleware definition, you have to set the middleware on the router.

version: "3.3"

services:
  traefik:
    image: "traefik:v2.0.2"
    container_name: "traefik"
    restart: always
    networks:
      - traefik_proxy
    command:
      - "--api=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=true"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--providers.docker.watch=true"
    ports:
      - "443:443"
      - "8080:8080"
      - "80:80"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /home/bruno/traefik/traefik.toml:/traefik.toml
      - /home/bruno/traefik/acme.json:/acme.json
      - /home/bruno/traefik/error.log:/error.log
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=traefik_proxy"
      - "traefik.http.routers.traefik.rule=Host(`hostname.tld`)"
      - "traefik.http.routers.traefik.tls=true"
      - "traefik.http.routers.traefik.midddlewares=stsheaders"
      - "traefik.http.routers.traefik.service=api@internal"

      - "traefik.http.middlewares.stsheaders.headers.SSLRedirect=true"
      - "traefik.http.middlewares.stsheaders.headers.STSSeconds=315360000"
      - "traefik.http.middlewares.stsheaders.headers.browserXSSFilter=true"
      - "traefik.http.middlewares.stsheaders.headers.contentTypeNosniff=true"
      - "traefik.http.middlewares.stsheaders.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.stsheaders.headers.SSLHost=${DOMAIN_NAME}"
      - "traefik.http.middlewares.stsheaders.headers.STSIncludeSubdomains=true"
      - "traefik.http.middlewares.stsheaders.headers.STSPreload=true"

networks:
  traefik_proxy:
    external:
      name: traefik_proxy
  default:
    driver: bridge


version: '2.2'

services:
  huggin:
    image: huginn/huginn
    restart: always
    container_name: huginn
    networks:
      - traefik_proxy
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=traefik_proxy"
      - "traefik.http.routers.huginn.rule=Host(`huginn.${DOMAIN_NAME}`)"
      - "traefik.http.routers.huginn.tls=true"
      - "traefik.http.routers.huginn.midddlewares=stsheaders"
      - "traefik.http.services.huginn.loadbalancer.server.port=3000"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /home/bruno/huginn/mysql:/var/lib/mysql 
    environment:
      - TZ=Europe/London

networks:
  traefik_proxy:
    external:
      name: traefik_proxy
  default:
    driver: bridge
1 Like
5

@ldez thank you, this was a great help! :smiley: