[Question] Configuration and metrics for the middleware

[fregapple]

Describe the bug 🐛
Looking within the CrowdSec Console, traefik-bouncer is unknown version and there is no metrics.
Going into crowdsec container and checking the metrics of the bouncer I get this:

cscli bouncers inspect traefik-bouncer

───────────────────────────────────────────────────────
 Bouncer: traefik-bouncer                              
───────────────────────────────────────────────────────
 Created At    2025-02-18 03:00:04.951715543 +0000 UTC 
 Last Update   2025-02-18 03:00:04.951715699 +0000 UTC 
 Revoked?      false                                   
 IP Address                                            
 Type                                                  
 Version                                               
 Last Pull                                             
 Auth type     api-key                                 
 OS            ?                                       
 Auto Created  false  

I am able to use traefik as normal

Expected behavior 👀
I would hope that I would be able to see metrics and know if this bouncer is doing anything?

Context 🔎
plugin config:

    crowdsec:
      plugin:
        bouncer:
          enabled: true
          logLevel: debug
          crowdsecLapiKey: <KEY>
          crowdsecLapiHost: crowdsec:8888
          crowdsecAppsecEnabled: true
          crowdsecAppsecHost: crowdsec:7422
          forwardedHeadersTrustedIPs:
            - 173.245.48.0/20
            - 103.21.244.0/22
            - 103.22.200.0/22
            - 103.31.4.0/22
            - 141.101.64.0/18
            - 108.162.192.0/18
            - 190.93.240.0/20
            - 188.114.96.0/20
            - 197.234.240.0/22
            - 198.41.128.0/17
            - 162.158.0.0/15
            - 104.16.0.0/13
            - 104.24.0.0/14
            - 172.64.0.0/13
            - 131.0.72.0/22
          clientTrustedIPs:
            - 192.168.1.0/24

Version (please complete the following information):

• OS: Ubunto
• Traefik version: 3.0.4
• Plugin version: 1.4.2

[fregapple]

Actually, scratch that about traefik working normally. While testing I had commented out the crowdsec middleware from the chain file. readding it causes a 404.

[fregapple]

In my Log i am getting:

2025-02-18T16:36:20+11:00 ERR github.com/traefik/traefik/v3/pkg/server/router/router.go:136 > error="invalid middleware \"crowdsec@file\" configuration: invalid middleware type or middleware does not exist" 

[fregapple]

ANNND Further into the log:

2025-02-18T16:42:20+11:00 ERR github.com/traefik/traefik/v3/cmd/traefik/traefik.go:230 > Plugins are disabled because an error 
has occurred. error="unable to set up plugins environment: unable to download plugin github.com/maxlerebourg/crowdsec-
bouncer-traefik-plugin: failed to call service: Get \"https://plugins.traefik.io/public/download/github.com/maxlerebourg/crowdsec-
bouncer-traefik-plugin/v1.4.2\": GET https://plugins.traefik.io/public/download/github.com/maxlerebourg/crowdsec-bouncer-
traefik-plugin/v1.4.2 giving up after 4 attempt(s)"

So I changed the version to v1.4.1 and now the error is:

2025-02-18T16:49:17+11:00 ERR github.com/traefik/traefik/v3/pkg/server/router/router.go:136 > error="plugin: unknown plugin
 type: bouncer" entryPointName=websecure routerName=traefik-rtr@docker

[fregapple]

Alright, I seemed to have solved this myself. I needed to name

middlewares:
  crowdsec:
    plugin:
      bouncers: <---- to ----> crowdsec-bouncer-traefik-plugin:

I suppose my only remaining question, is how do I view metrics for this bouncer?

[david-garcia-garcia]

@fregapple the plugin seems to be currently not reporting any metrics to the LAPI, see #171

[fregapple]

Due to Max's comment, I assume there is no intended functionality for it. Have you tried what he suggested? Is it worth playing around with that?

[david-garcia-garcia]

@fregapple this should be easy to implement, I wanted to take a shot at it but found that the CLAPI documentation for the metrics endpoint is scarce and I am not sure on what is the correct way of feeding the metrcis through the metrcis endpoint.

[mathieuHa]

Hi @fregapple,

Responding with some delay.
I'm aware we don't have much metrics linked to the plugin and we are following issue #171 and newly created MR by @david-garcia-garcia.

I just wanted to say that you should get more info that what you had from the command inspect.

I run the docker compose from the repository (with crowdsec latest) and got this:

user@user-pc:~/$ docker exec crowdsec cscli bouncers inspect TRAEFIK
level=warning msg="can't load CAPI credentials from '/etc/crowdsec//online_api_credentials.yaml' (missing login field)"
-------------------------------------------------------
 Bouncer: TRAEFIK                                      
-------------------------------------------------------
 Created At    2025-03-31 17:57:20.83120561 +0000 UTC  
 Last Update   2025-03-31 18:03:16.115739732 +0000 UTC 
 Revoked?      false                                   
 IP Address    172.18.0.5                              
 Type          Go-http-client                          
 Version       1.1                                     
 Last Pull     2025-03-31 18:03:16.115736729 +0000 UTC 
 Auth type     api-key                                 
 OS            ?                                       
 Auto Created  false                                   
------------------------------------------------------

I do have IP, Type and version filled after the plugin contacted the LAPI.

Is everything working ok for you except for the metrics ?
If yes, I'd like to close this issue and we'll link and continue in #171

[hu3bi]

Should we also rename it here @fregapple

      - "--experimental.plugins.crowdsec-bouncer-traefik-plugin.moduleName=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
      - "--experimental.plugins.crowdsec-bouncer-traefik-plugin.version=v1.4.2"

Also, my version is shown as Version 1.X.X .