Checkmk Kubernetes Cluster and Node Collectors

Checkmk cluster and node collectors to monitor Kubernetes clusters.

• Free software: GNU General Public License v2

Installation --------

You can use our helm repository to install the collectors from our latest release. Detailed instructions can be found in our official docs.

Support policy --------

Please read our official docs for information regarding supported Kubernetes versions and supported Kubernetes distros.

Features

• Monitor Kubernetes clusters
• Uses cAdvisor to collect container metrics

• Runs the following objects on your cluster:

  • node collector:

    • runs as a DaemonSet on every node that has kubelet configured
    • uses cAdvisor to collect container metrics and fowards them to the cluster collector
    • uses a Checkmk agent to collect machine sections and forwards them to the cluster collector

  • cluster collector:

    • runs as a Deployment
    • receives metrics from every node collector instance on the cluster and stores them in memory
    • runs an API that provides these metrics
    • can be configured to run the API in http or https mode

• Supports PodSecurityPolicy (up to Kubernetes 1.24) and NetworkPolicy