Docker Plugin, no data

Troubleshooting
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CMK version: 2.3.0p6
OS version: Ubuntu 24.04 LTS
Docker version 27.0.1

Hi everyone,

I’m having trouble with monitoring Docker containers using Checkmk. I followed the official guide Monitoring Docker (checkmk.com).

Here’s what I did:

  1. Installed the Checkmk agent on the host.
  2. Installed the Docker monitoring plugin according to the guide.
  3. Verified that the mk_docker.py plugin is in the /usr/lib/check_mk_agent/plugins/ directory.
  4. Started a service discovery on the host.

However, during the service discovery, no Docker services are detected. The output just indicates that there are 2 agent-plugins, but no data is received from Docker.

Troubleshooting Steps Taken:

  • Checked that Docker is running and accessible.
  • Verified the execution of the mk_docker.py script manually to see if it outputs data.
  • Ensured that the Checkmk agent is running properly on the host.

Has anyone encountered a similar issue or can suggest further troubleshooting steps?

Thanks in advance for any help!

2

Got the same problem here