Can't get proxying to external server to work with Docker

Traefik Traefik v2
1

I'm not sure what I'm doing wrong here. Basically, what I want (to begin with) is a simple reverse proxy from our external server (say, with the URL www.foobar.com and the IP 1.2.3.4 to an internal server with the IP 192.168.2.31 which is running a webserver listening on port 80.

For this simple example, I don't want to putz around with TLS or anything else. Just an incoming request to 1.2.3.4:80 which is then routed to 192.168.2.31:80

Problem is that Traefik always yields a 404 and I'm not seeing any errors in the logs (or even if I'm looking at the correct logs).

So, this is the docker-compose.yml:

version: '3'

services:
  traefik:
    image: traefik:v2.9
    container_name: traefik
    restart: unless-stopped
    network_mode: "host"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./data/traefik.yml:/etc/traefik/traefik.yml
      - /etc/localtime:/etc/localtime:ro

I also tried the default network_mode and exposed port 80 - didn't make any difference. Also note that if I try to do wget 192.168.2.31 from inside the docker container with docker exec -it traefik bin/sh I do indeed get the proper index.html with the correct content.

The traefik.yml looks like this (and according to the logs it is indeed loaded - after all, the dashboard at www.foobar.com:8080 is loading!):

api:
  dashboard: true
  insecure: true
  debug: true

entryPoints:
  http:
    address: ":80"

providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"
    exposedByDefault: false

http:
  routers:
    test:
      entryPoints:
        - "http"
      rule: "Host(`www.foobar.com`)"
      service: test

services:
  test:
    loadBalancer:
      servers:
        - url: "http://192.168.2.31:80"

log:
  level: DEBUG

I do not understand where the problem lies - it also doesn't help that I'm not seeing any errors. Any ideas?

2

Routers and services are dynamic configuration and can not be placed in static configuration traefik.yml. You need to create an additional file, for example traefik-dynamic.yml, and load it via provider.file in your static config.

3

Hello @Rhywden Is you issue fixed? I created the dynamic configuration and loaded it. I still run into the 404 Page Not Found.

4

Check simple Traefik external example. Note it uses Swarm, so labels are placed under deploy section.

Enable and check Traefik dashboard and debug log.