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update metrics guide 

Signed-off-by: zhuxiujuan28 <562873187@qq.com>
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zhuxiujuan28 2024-12-19 15:40:54 +08:00
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Metrics Server is a scalable, efficient source of container resource metrics for Kubernetes built-in autoscaling pipelines.
Metrics Server collects resource metrics from Kubelets and exposes them in Kubernetes apiserver through [Metrics API](https://github.com/kubernetes/metrics)
for use by [Horizontal Pod Autoscaler](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/) and [Vertical Pod Autoscaler](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/).
You can use Metrics Server for:
* CPU/Memory based horizontal autoscaling (link:https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/[Horizontal Autoscaling])
* Automatically adjusting/suggesting resources needed by containers (link:https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/[Vertical Autoscaling])
- CPU/Memory based horizontal autoscaling (learn more about [Horizontal Autoscaling](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/))
- Automatically adjusting/suggesting resources needed by containers (learn more about [Vertical Autoscaling](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/))
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Metrics Server 是一个可扩展、高效的容器资源度量源，为 Kubernetes 内置的自动扩展管道提供服务。
Metrics Server 从 Kubelet 收集资源指标，并通过 [Metrics API](https://github.com/kubernetes/metrics) 在 Kubernetes apiserver 中公开它们，供 [Horizontal Pod Autoscaler](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/) 和 [Vertical Pod Autoscaler](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/) 使用。
Metrics Server 可实现如下功能：
* 基于 CPU/内存的水平自动缩放（link:https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/[Horizontal Autoscaling]）
* 自动调整/建议容器所需的资源（link:https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/[Vertical Autoscaling]）
- 基于 CPU/内存的水平自动缩放（了解更多关于 [Horizontal Autoscaling](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/)）
- 自动调整/建议容器所需的资源（了解更多关于 [Vertical Autoscaling](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/)）
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