CheckMK behind Traefik reverse proxy in subpath

Troubleshooting
,
1

CMK version: raw
OS version: docker 2.2.0-latest

Hi,

I am trying to make CheckMK work behind Traefik reverse proxy, in a subpath.
For example, instead of running in my.site.com/ I want it in my.site.com/mypath/.

i have read similar posts here, but they are mainly using Apache, and so I was not able to make it work.

Usually for Traefik with Docker, it suffices to:

    labels:
      - "traefik.enable=true"
      - "traefik.http.services.checkmk.loadbalancer.server.port=5000"
      - "traefik.http.services.checkmk.loadbalancer.server.scheme=http"
      - "traefik.http.routers.checkmk.rule=Host(`my.site.com`) && PathPrefix(`/mypath`)"
      - "traefik.http.routers.checkmk.entrypoints=web"
      - "traefik.http.routers.checkmk.middlewares=checkmk"
      - "traefik.http.middlewares.checkmk.stripprefix.prefixes=/mypath"

But it is not working: all urls and redirects returned by CheckMK do not contain mypath.
Is there a config I can use to tune this behavior?

Tank you,
regards

2

I was trying to find my old Checkmk Swarm yaml but I seem to have deleted it. But here is what i used for some other things back when I used Traefik + Docker Swarm. I believe I mostly just copied and pasted from each yaml I had. This configuration actually automatically went to the site made with the docker container eg checkmk.example.com with site cmk would automatically resolve and go to checkmk.example.com/cmk/. Hope this helps

labels:
- “traefik.enable=true”
- “traefik.http.routers.checkmk.rule=Host(checkmk.example.com)”
- “traefik.http.routers.checkmk.entrypoints=websecure”
- “traefik.http.routers.checkmk.tls.certresolver=letsencryptresolver”
- “traefik.http.services.checkmk.loadbalancer.server.port=5000”

3

Hi,

thank you for the answer.
I am able to expose checkmk behind traefik, but I am not able to expose it under a subpath.
Meantime I have somewhere that it seems impossible right now… a sad missing feature.

So I am going to close this for now…

Regards

4

Hello Francesco!
I would suggest taking a look at the ideas portal. Maybe you would also like to consider adding your feature idea, too?

5

Hi,

yes, good suggestion. Here the link:

Regards

6

Intersting that you mark your own answer as the solution, but anyways no that is not possible.
Checkmk can run multiple sites on the same server, you can have

checkmk.local/SITE1
checkmk.local/SITE2

and so on. so Checkmk needs to be able to “OWN” the re-direct to a sub path, that cant be done by anyone else.

This have been asked before and I dont see any reason for these questions, it’s just silly. run checkmk under its own sub domain instead

7

Hi,

  1. If you prefer/need subdomains instead of subpaths, it is ok, but I need subpaths and not subdomains
  2. As far as I know, checkmk allows to specify a single piece of subpath (default cmk), but I need more nesting (/part1/part2/part3). Is it possible to use more nesting?

Regards