How do I set MAXPOD in EKS ?

[HanHoRang31]

How can I set maxpod on a node group in Terraform?
In the Terraform module, ㅑ can proceed through the options below, but I cannot find it in the module you used.
bootstrap_extra_args = "--container-runtime containerd --kubelet-extra-args '--max-pods=20'"
https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/docs/user_data.md

[ajayvohra2005]

The solution uses two ways to automate the life-cycle of the K8s nodes. There is a system managed node group that manages all CPU only nodes via Cluster Autoscaler. And Karpenter manages the accelerator (GPU, or Neuron) resources . What is your objective in using max-pods option, i.e. what are you trying to accomplish? If you share that, I may be able to shed some more light.

[HanHoRang31]

Thank you so much for your reply, but the options you mentioned are not what I want.
I want to set max_pod via bootstrap_extra_args option like in the example in the link below.
https://awslabs.github.io/data-on-eks/docs/bestpractices/networking#limit-the-number-of-ips-per-node-on-large-instance-types-with-max_eni-and-max-pods
But there is no such option in the Terraform module.

[ajayvohra2005]

Thanks for the elaboration. I understand the request. One could possibly specify max pods for the managed node groups, and the Karpenter managed nodes. Would it be sufficient if I provided variables for those two options, e.g. managed_ng_max_pods, and karpenter_max_pods? Thanks for your input.

[HanHoRang31]

Yes, that's right, I would appreciate it if you could add it.

[ajayvohra2005]

Hash commit a70db6b adds support for Karpenter kubelet maxPods.

Since the aws_eks_node_group.system_ng node group is only used for system pods, I have not made any changes to the system node group.

If you need a node group other than systems node group, in addition to what Karpenter provides, please share the use case. Karpenter is configured in this solution to provide all resources for data processing and training.

Note: aws_eks_node_group.this node group is only there for legacy reasons, and is not used, or recommended, because Karpenter replaces its functionality.

[ajayvohra2005]

Can this issue be closed? Thanks.