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Chapter 7. Monitoring


You can use the OpenShift Container Platform web console to monitor metrics related to the health status of your sandboxed workloads and nodes.

OpenShift sandboxed containers has a pre-configured dashboard available in the OpenShift Container Platform web console. Administrators can also access and query raw metrics through Prometheus.

7.1. About metrics

OpenShift sandboxed containers metrics enable administrators to monitor how their sandboxed containers are running. You can query for these metrics in Metrics UI In the OpenShift Container Platform web console.

OpenShift sandboxed containers metrics are collected for the following categories:

Kata agent metrics
Kata agent metrics display information about the kata agent process running in the VM embedded in your sandboxed containers. These metrics include data from /proc/<pid>/[io, stat, status].
Kata guest operating system metrics
Kata guest operating system metrics display data from the guest operating system running in your sandboxed containers. These metrics include data from /proc/[stats, diskstats, meminfo, vmstats] and /proc/net/dev.
Hypervisor metrics
Hypervisor metrics display data regarding the hypervisor running the VM embedded in your sandboxed containers. These metrics mainly include data from /proc/<pid>/[io, stat, status].
Kata monitor metrics
Kata monitor is the process that gathers metric data and makes it available to Prometheus. The kata monitor metrics display detailed information about the resource usage of the kata-monitor process itself. These metrics also include counters from Prometheus data collection.
Kata containerd shim v2 metrics
Kata containerd shim v2 metrics display detailed information about the kata shim process. These metrics include data from /proc/<pid>/[io, stat, status] and detailed resource usage metrics.

7.2. Viewing metrics

You can access the metrics for OpenShift sandboxed containers in the Metrics page In the OpenShift Container Platform web console.

Prerequisites

  • You have access to the cluster as a user with the cluster-admin role or with view permissions for all projects.

Procedure

  1. In the OpenShift Container Platform web console, navigate to Observe Metrics.
  2. In the input field, enter the query for the metric you want to observe.

    All kata-related metrics begin with kata. Typing kata displays a list of all available kata metrics.

The metrics from your query are visualized on the page.

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