Example of a very simple reverse proxy

Traefik Traefik v2
1

I'm trying to get an ultra-simple example working, but fail:

entryPoints:
  hole-1:
    address: :661

http:
  routers:
    hole-router-1:
      entryPoints:
        - hole-1
      service: hole-service

services:
  hole-service:
    loadBalancer:
      servers:
        - url: http://10.23.24.10:3000

The configuration above when I put my browser to http://10.23.24.10:661 gives me a 404 page. I can access http://10.23.24.10:3000 directly and is working.

The documentation is horrendously poor, there are no full examples of such simple things.

1 Like
2

You need to add a rule to your router.

Path or Host would be the easiest.

3

@cakiwi I tried the following now:

defaultEntryPoints:
  - http

entryPoints:
  hole-1:
    address: ":661"

http:
  routers:
    hole-router-1:
      rule: Path(`/foo`)
      entryPoints:
        - hole-1
      service: hole-service

services:
  hole-service:
    loadBalancer:
      servers:
        - url: http://10.23.24.10:3000

I tried in the browser: http://10.23.24.10:661/foo

Still no luck. I still get up the 404 page not found.

4

Are you sure that the port :661 is open?

Try it locally with a curl.

Could you provide your static configuration.

5

Getting a 404 indicates something is open on :661

+1 for static

6

Yea it's open, I get a completely different page (firefox default not found page) if I try for example http://10.23.24.10:662.

I am running on Windows if that makes a difference?

7

I put on debug and got the following:

time="2020-02-18T15:04:51+01:00" level=info msg="Traefik version 2.1.4 built on 2020-02-06T17:12:23Z"
time="2020-02-18T15:04:51+01:00" level=debug msg="Static configuration loaded {\"global\":{\"checkNewVersion\":true},\"serversTransport\":{\"maxIdleConnsPerHost\":200},\"entryPoints\":{\"hole-1\":{\"address\":\":661\",\"transport\":{\"lifeCycle\":{\"graceTimeOut\":10000000000},\"respondingTimeouts\":{\"idleTimeout\":180000000000}},\"forwardedHeaders\":{}}},\"providers\":{\"providersThrottleDuration\":2000000000},\"log\":{\"level\":\"DEBUG\",\"format\":\"common\"}}"
time="2020-02-18T15:04:51+01:00" level=info msg="\nStats collection is disabled.\nHelp us improve Traefik by turning this feature on :)\nMore details on: https://docs.traefik.io/v2.0/contributing/data-collection/\n"
time="2020-02-18T15:04:51+01:00" level=debug msg="Start TCP Server" entryPointName=hole-1
time="2020-02-18T15:04:51+01:00" level=info msg="Starting provider aggregator.ProviderAggregator {}"
time="2020-02-18T15:04:51+01:00" level=info msg="Starting provider *traefik.Provider {}"
time="2020-02-18T15:04:51+01:00" level=debug msg="Configuration received from provider internal: {\"http\":{},\"tcp\":{},\"tls\":{}}" providerName=internal
time="2020-02-18T15:04:51+01:00" level=debug msg="No default certificate, generating one"

Don't if that says anything useful.

9

After re-reading your post:

You mixed the dynamic configuration and the static configuration.

They must be defined in separated files:

traefik.yml 
entryPoints:
  hole-1:
    address: :661

providers:
  file:
    directory: /path/to/dynamic/conf/
/path/to/dynamic/conf/mydynconf.yml 
http:
  routers:
    hole-router-1:
      rule: Path(`/foo`)
      entryPoints:
        - hole-1
      service: hole-service

  services:
    hole-service:
      loadBalancer:
        servers:
          - url: http://10.23.24.10:3000

You also have an indentation issue.

https://docs.traefik.io/v2.1/providers/file/#configuration-examples

10

Ah thank you Idez for pointing that out, now it's working. There were a couple of things wrong with my config.

  1. Path was missing (as you pointed out)
  2. Static and Dynamic configurations must be split and referenced

I must say, the error messages were not the best and the documentation is not simple to understand that this is how the files must be structured. In any case I got it working with the following setup:

C:\config\traefik\traefik.yaml:

entryPoints:
  hole-1:
    address: ":661"

providers:
  file:
    filename: C:\config\traefik\dynamic.yaml

C:\config\traefik\dynamic.yaml:

http:
  routers:
    hole-router-1:
      rule: "Path(`/`)"
      entryPoints:
        - hole-1
      service: hole-service

  services:
    hole-service:
      loadBalancer:
        servers:
          - url: http://10.23.24.10:3000

Started traefik with: traefik.exe --configFile=C:/config/traefik/traefik.yaml

2 Likes
11

Very glad to find this question and answer. I have to echo @basickarl about the documentation — quite frankly, it is woeful. It approaches everything from a low level, the English is somewhat awkward, there's a distinct lack of self-contained examples, and some of the examples that do exist are for Traefik v1, without any sign-posting. I say this all in the hope something will be done for other newcomers like us.