Discourse with Traefik 2.0

Traefik Traefik v2
3

configs of treafik and the infos of the routers etc. are given in

and
the expert from my app.yml for discourse based on Discourse with Traefik 2.0 - installation - Discourse Meta

app.yml 

templates:
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  - "templates/web.template.yml"
  - "templates/web.ratelimited.template.yml"
## Uncomment these two lines if you wish to add Lets Encrypt (https)
  - "templates/web.ssl.template.yml"
  - "templates/web.letsencrypt.ssl.template.yml"

## which TCP/IP ports should this container expose?
## If you want Discourse to share a port with another webserver like Apache or nginx,
## see https://meta.discourse.org/t/17247 for details
expose:
#  - "80:80"   # http
#  - "443:443" # https
#  - "80"      # http
#  - "443"     # https

labels:
  app_name:                                                     discourse  
  traefik.enable:                                               true
  traefik.docker.network:                                       bridge_proxy_traefikv2  
  traefik.http.services.discourse.loadbalancer.server.port:     80
  #traefik.http.services.discourse.loadbalancer.server.port:     443
  traefik.http.routers.discourse.rule:                          Host(`forum.fairbnb.community`)
  #traefik.http.routers.discourse.entrypoints:                   websecure
  traefik.http.routers.discourse.entrypoints:                   web
  traefik.http.routers.discourse.tls:                           true
  traefik.http.routers.discourse.tls.certresolver:              tlsChallenge_letsencrypt
     
docker_args:
  - "--network=bridge_proxy_traefikv2"
  
params:
  db_default_text_search_config: "pg_catalog.english"

  ## Set db_shared_buffers to a max of 25% of the total memory.
  ## will be set automatically by bootstrap based on detected RAM, or you can override
  db_shared_buffers: "128MB"

  ## can improve sorting performance, but adds memory usage per-connection
  #db_work_mem: "40MB"

  ## Which Git revision should this container use? (default: tests-passed)
  #version: tests-passed
  
env:
  LANG: en_US.UTF-8
  # DISCOURSE_DEFAULT_LOCALE: en

  ## How many concurrent web requests are supported? Depends on memory and CPU cores.
  ## will be set automatically by bootstrap based on detected CPUs, or you can override
  UNICORN_WORKERS: 2

  ## TODO: The domain name this Discourse instance will respond to
  ## Required. Discourse will not work with a bare IP number.
  DISCOURSE_HOSTNAME: forum.fairbnb.community

  ## Uncomment if you want the container to be started with the same
  ## hostname (-h option) as specified above (default "$hostname-$config")
  #DOCKER_USE_HOSTNAME: true

.

with that config, I get 404 although service is indicated as ok

image
image1291×742 31.7 KB

the logs are in

whoami.fairbnb.community:

185.46.214.116 - - [03/Jan/2020:20:36:19 +0000] "GET / HTTP/1.1" 200 740 "-" "-" 6 "whoami_sub@docker" "http://172.20.0.2:80" 40ms

forum.fairbnb.community

185.46.214.116 - - [03/Jan/2020:20:38:01 +0000] "GET / HTTP/1.1" - - "-" "-" 7 - - 0ms
185.46.214.116 - - [03/Jan/2020:20:38:03 +0000] "GET /service-worker-29f380effd40cdaa98cfa88ea74b0c66ba6ca6c901f666253c7592d49fa5e7d4.js HTTP/1.1" - - "-" "-" 8 - - 0ms
185.46.214.116 - - [03/Jan/2020:20:39:02 +0000] "GET /service-worker-29f380effd40cdaa98cfa88ea74b0c66ba6ca6c901f666253c7592d49fa5e7d4.js HTTP/1.1" - - "-" "-" 9 - - 0ms

traefik.fairbnb.community

185.46.214.116 - - [03/Jan/2020:20:39:44 +0000] "GET /dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/dashboard/ HTTP/1.1" 404 19 "-" "-" 10 "traefik_dashboard@docker" - 1ms
89.248.167.131 - - [03/Jan/2020:21:09:40 +0000] "GET / HTTP/1.1" 301 17 "-" "-" 11 "dashboard@internal" - 7ms

HOW CAN I DEBUG 404?
curl isn't helping:

root@Ubuntu18:/opt/01_SysAdminScripts# curl -v -H Host:forum.fairbnb.community http://127.0.0.1
* Rebuilt URL to: http://127.0.0.1/
*   Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to 127.0.0.1 (127.0.0.1) port 80 (#0)
> GET / HTTP/1.1
> Host:forum.fairbnb.community
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 404 Not Found
< Content-Type: text/plain; charset=utf-8
< X-Content-Type-Options: nosniff
< Date: Fri, 03 Jan 2020 21:57:53 GMT
< Content-Length: 19
<
404 page not found
* Connection #0 to host 127.0.0.1 left intact