Deprecate aws-k8s-1.17 variant by November, 2021

[tjkirch]

Kubernetes 1.17 went out of upstream support in November, 2020. AWS EKS is maintaining support for 1.17 until November, 2021. Bottlerocket will deprecate support of our aws-k8s-1.17 variant by then.

While you’ll still be able to launch aws-k8s-1.17 nodes beyond November, 2021, we’ll no longer provide updated aws-k8s-1.17 images, and the Bottlerocket repositories will no longer receive new updates for nodes running aws-k8s-1.17.

We recommend you replace existing Bottlerocket aws-k8s-1.17 nodes with a newer variant such as aws-k8s-1.21 - ideally the latest your Kubernetes cluster supports.

For instructions on how to migrate your nodes to newer supported versions, please consult the EKS documentation for updating clusters or reach out to us through your AWS support channels for additional questions.