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Update docs/api/extension-apiserver.md

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Co-authored-by: Tom Lebreux <me@tomlebreux.com>
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Josh Meranda
2025-07-11 10:47:02 -04:00
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co-authored by Tom Lebreux
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@@ -10,7 +10,7 @@ Rancher extends Kubernetes with additional APIs by registering an extension API
## Aggregation Layer is Required ## Aggregation Layer is Required
The API aggregation layer must be configured on the local Kubernetes cluster for the `imperative-api-extension` `APISertvice` to work correctly. If the `APIService` does not receive a registration request after the Rancher server starts, the pod will crash with a log entry indicating the error. If your pods are consistently failing to detect registration despite having a correctly configured cluster, you can increase the timeout by setting the `.Values.aggregationRegistrationTimeout` in helm. The API aggregation layer must be configured on the local Kubernetes cluster for the `v1.ext.cattle.io` `APIService` to work correctly. If the `APIService` does not receive a registration request after the Rancher server starts, the pod will crash with a log entry indicating the error. If your pods are consistently failing to detect registration despite having a correctly configured cluster, you can increase the timeout by setting the `.Values.aggregationRegistrationTimeout` in helm.
All versions of k8s supported by Rancher with the feature will have the aggregation layer configured by default. If you suspect your cluster may not be configured properly, see the [Kubernetes Aggregation Layer docs](https://kubernetes.io/docs/tasks/extend-kubernetes/configure-aggregation-layer/) for information on configuring the aggregation layer. All versions of k8s supported by Rancher with the feature will have the aggregation layer configured by default. If you suspect your cluster may not be configured properly, see the [Kubernetes Aggregation Layer docs](https://kubernetes.io/docs/tasks/extend-kubernetes/configure-aggregation-layer/) for information on configuring the aggregation layer.