Docker Monitoring - OCI runtime exec failed

[l.siebert (Linus)]

CMK version: 2.0.0
OS version: Debian 11 Bullseye

Error message: OCI runtime exec failed: exec failed: unable to start container process: exec: "check_mk_agent": executable file not found in $PATH: unknown
**

Hello, i have a checkmk agent installed on my debian 11, in which a docker-compose.yml runs a phpmyadmin and mysql container. The mk_docker.py plugin successfully gets executed when putting out check_mk_agent in the terminal, however,it cannot get into docker containers as of following error message

"OCI runtime exec failed: exec failed: unable to start container process: exec: "check_mk_agent": executable file not found in $PATH: unknown"

The checkmk unknown error looks like this: "Plugin exception in MKDockerClient.__init__: Error while fetching server API version: ('Connection aborted.', PermissionError(13, 'Permission denied'))"

I googled for hours and did not find a correct solution that fits to checkmk. What is the reason and is the docker functionality even fully working in this version?

[andreas-doehler (Andreas)]

You can ignore this massage if there is no agent inside the docker container itself. Most times this is not the case.

[BSBS]

I’m also getting these messages on 2.1.0p8.
They spam my docker node’s journal, making it hard to see actual problems.
Is it possible to prevent check_mk from trying to run an agent inside the containers?

Docker version: 20.10.15
Ubuntu 22.04

[BSBS]

I figured it out myself:
/etc/check_mk/docker.cfg => add “docker_container_agent” to skip_sections