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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
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.