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* alerts-and-notifications broken link pass * category-overview-pages pass * dashboards and charts pass * deployment-guides pass * dev corner pass * exporting metrics pass * Netdata Agent pass * Netdata Cloud pass * observ centrl points pass * sec and priv design pass * final docs on docs/ folder * web server readme fix * fix broken link
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Kubernetes tab
The Netdata dashboards feature enhanced visualizations for the resource utilization of Kubernetes (k8s) clusters, embedded in the default Metrics tab dashboard.
These visualizations include a health map for viewing the status of k8s pods/containers, in addition to Netdata charts for viewing per-second CPU, memory, disk, and networking metrics from k8s nodes.
See our Kubernetes deployment instructions for details on deploying Netdata on your Kubernetes cluster.
Available Kubernetes metrics
Netdata Cloud organizes and visualizes the following metrics from your Kubernetes cluster from every container:
| Metric | Description |
|---|---|
k8s.cgroup.cpu_limit |
CPU utilization as a percentage of the limit defined by the pod specification spec.containers[].resources.limits.cpu or a LimitRange object. |
k8s.cgroup.cpu |
CPU utilization of the pod/container. 100% usage equals 1 fully-utilized core, 200% equals 2 fully-utilized cores, and so on. |
k8s.cgroup.throttled |
The percentage of runnable periods when tasks in a cgroup have been throttled. |
k8s.cgroup.throttled_duration |
The total time duration for which tasks in a cgroup have been throttled. |
k8s.cgroup.mem_utilization |
Memory utilization within the configured or system-wide (if not set) limits. |
k8s.cgroup.mem_usage_limit |
Memory utilization, without cache, as a percentage of the limit defined by the pod specification spec.containers[].resources.limits.memory or a LimitRange object. |
k8s.cgroup.mem_usage |
Used memory, without cache. |
k8s.cgroup.mem |
The sum of cache and rss (resident set size) memory usage. |
k8s.cgroup.writeback |
The size of dirty and writeback cache. |
k8s.cgroup.pgfaults |
Sum of page fault bandwidth, which are raised when the Kubernetes cluster tries accessing a memory page that is mapped into the virtual address space, but not actually loaded into main memory. |
k8s.cgroup.throttle_io |
Sum of read and write per second across all PVs/PVCs attached to the container. |
k8s.cgroup.throttle_serviced_ops |
Sum of the read and write operations per second across all PVs/PVCs attached to the container. |
k8s.cgroup.net_net |
Sum of received and sent bandwidth per second. |
k8s.cgroup.net_packets |
Sum of multicast, received, and sent packets. |
When viewing the overview of this dashboard, Netdata presents the above metrics per container, or aggregated based on their associated pods.
Kubernetes Containers overview
At the top of the Kubernetes containers section there is a map, that with a given context colorizes the containers in terms of their utilization.
The filtering of this map is controlled by using the NIDL framework from the definition bar of the chart.
Detailed information
Hover over any of the pods/containers in the map to display a modal window, which contains contextual information and real-time metrics from that resource.