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