Does EKS node group override ASG configuration?

Question

I was told that for our EKS instances, that if I update the ASG via "Scheduled actions" that it won't work correctly because the nodes will actually be based on what is configured Node group scaling configuration.

Answer

Hi, when you create EKS (for example from Terraform), ASG will be automatically created for the node group. So, to change the capacity of EKS nodes you need to change ASG params. If you want it to be done automatically per load, you need to use Cluster Autoscaler:  **https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler**. If you compare node group *min, desired, max capacity* and ASG *min, desired, max capacity*, you should see the same values.

Answer

More detailed similar answer is provided at this link as well : https://repost.aws/questions/QUlmqEwKfrQe-clJXvXXCu6w/auto-scale-eks-nodes#ANCjzD02BbQVqi2AaM32tvcw

Does EKS node group override ASG configuration?

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