How-to: Automatically add docker containers as hosts to checkmk

Community Knowledge
1

Hello everyone,
I want to share my small script with all of you on how to automatically add docker containers as hosts in checkmk.

This is especially interesting for all checkmk raw users out there, because only in the commercial editions of checkmk docker containers are automataclly added as hosts:

“In the commercial editions you can have these hosts created automatically” https://docs.checkmk.com/latest/en/monitoring_docker.html#_monitoring_the_containers

Tutorial on my website:

https://hostlab.tech/blog/checkmk-docker-containers-as-hosts

5 Likes
2

Excellent contribution. Thank you

3

Thanks for this. Works great. Just one question. First time I ran the script from the command line and noticed this in the output:
./docker-container-check.sh: line 22: [: : integer expression expected

Line 22 is:
if [ "$result" -gt 350 ]; then

Like I said, in the end it works great. The conainers are nicely discovered and activated in CheckMK.

4

Hello, I am have some trouble it seem like the script is running well but when I got back to the website it doesn’t show the host.

5

Is my website not loading or is my script not working correctly?

For my script to work all your docker host(s) must be connected to the checkmk server via the “checkmk agent” beforhand:

grafik
grafik1176×280 52.6 KB