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Improvement: Remove Heapster content from HPA. (#29547) 

* Improvement: Remove Heapster content from HPA.

* Add more descriptive link for Metrics Server.
pull/28355/head^2
Shubham 2021-09-09 06:50:10 +05:30 committed by GitHub
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commit 975bd9e9b7
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content/en/docs/tasks/run-application/horizontal-pod-autoscale.md
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@ -68,14 +68,7 @@ or the custom metrics API (for all other metrics).
The HorizontalPodAutoscaler normally fetches metrics from a series of aggregated APIs (`metrics.k8s.io`,
`custom.metrics.k8s.io`, and `external.metrics.k8s.io`). The `metrics.k8s.io` API is usually provided by
metrics-server, which needs to be launched separately. See
[metrics-server](/docs/tasks/debug-application-cluster/resource-metrics-pipeline/#metrics-server)
for instructions. The HorizontalPodAutoscaler can also fetch metrics directly from Heapster.
{{< note >}}
{{< feature-state state="deprecated" for_k8s_version="v1.11" >}}
Fetching metrics from Heapster is deprecated as of Kubernetes 1.11.
{{< /note >}}
metrics-server, which needs to be launched separately. For more information about resource metrics, see [Metrics Server](/docs/tasks/debug-application-cluster/resource-metrics-pipeline/#metrics-server).
See [Support for metrics APIs](#support-for-metrics-apis) for more details.
@ -344,8 +337,6 @@ APIs, cluster administrators must ensure that:
* For external metrics, this is the `external.metrics.k8s.io` API. It may be provided by the custom metrics adapters provided above.
* The `--horizontal-pod-autoscaler-use-rest-clients` is `true` or unset. Setting this to false switches to Heapster-based autoscaling, which is deprecated.
For more information on these different metrics paths and how they differ please see the relevant design proposals for
[the HPA V2](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/autoscaling/hpa-v2.md),
[custom.metrics.k8s.io](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/instrumentation/custom-metrics-api.md)