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Volcengine Kubernetes Engine

Namespaces

Setting LimitRange

LimitRange in a namespace facilitates the appropriate allocation and management of resources to improve the utilization and availability of cluster resources. This topic describes how to set LimitRange for a namespace.

Usage instructions

When you create or update a Pod in a namespace, if you do not specify ResourceQuotas for the resources, such as CPU and memory of a container, Kubernetes will apply the LimitRange set for the namespace to the container.

If you do not specify a LimitRange for the namespace, objects (e.g., Pods, Containers, PersistentVolumeClaims) in it can use namespace or cluster resources without limit.

Prerequisites

A namespace has been created in the VKE cluster. For instructions, see Creating namespaces.

Procedure

Click Cluster in the left navigation bar.

On the Cluster page, click the name of the target cluster.

In the left navigation bar of the cluster management page, click Namespace.

In the namespace list, find the target namespace and click ... > Set LimitRange in the Actions column.

Set LimitRange for the namespace.

Type	Name	Description
Container LimitRange	Default CPU request	The minimum CPU request that will be applied to each container in the namespace if you do not specify a CPU limit for containers.
		Default CPU limit	The maximum CPU limit that will be applied to each container in the namespace if you do not specify a CPU limit for containers.
		Default memory request	The minimum memory request that will be applied to each container in the namespace if you do not specify a memory limit for containers.
		Default memory limit	The maximum memory limit that will be applied to each container in the namespace if you do not specify a memory limit for containers.
		Minimum CPU	Set the minimum CPU usage of the container. The values of Default CPU request and Default CPU limit must be greater than or equal to Minimum CPU and cannot be left empty.
		Maximum CPU	Set the maximum CPU usage of the container. The values of Default CPU request and Default CPU limit must be less than or equal to Maximum CPU and cannot be left empty.
		Minimum memory	Set the minimum memory usage of the container. The values of Default memory request and Default memory limit must be greater than or equal to the value of Minimum memory, and cannot be left empty.
		Maximum memory	Set the maximum memory usage of the container. The values of Default memory request and Default memory limit must be less than or equal to the value of Maximum memory, and cannot be left empty.
Pod LimitRange	Maximum CPU	The maximum CPU usage of the pod.
Pod LimitRange		Maximum memory	The maximum memory usage of the pod.
PersistentVolumeClaim LimitRange	Minimum storage request	The minimum storage usage of the PersistentVolumeClaim (PVC).
PersistentVolumeClaim LimitRange		Maximum storage request	The maximum storage usage of the PVC.

After the configuration is complete, click Confirm.

After you set LimitRange for the namespace, find the target namespace in the namespace list, and click View details in the LimitRange column to view the LimitRange information of the namespace.

tip

If you set LimitRange via kubectl or the native Kubernetes API (not in the console), ensure the LimitRange name matches the Namespace name. Otherwise, you won't view the LimitRange details after you click View details in the console.

Last updated: 2026.06.12 11:25:11