Deleting and adding subnet from an aws eks cluster

Hello,

It is currently not possible to add/delete your subnets that are registered with your EKS cluster. There is an open feature request for this use-case and the EKS team is currently working on it.

Please be advised that you can run worker nodes in any subnets of your VPC, they do not have to be the same ones registered with your EKS cluster. Please refer EKS subnet considerations for more info.

Thank you!

Hello,

Here is a good news. Amazon EKS now allows modification of cluster subnets and security groups. (see What's new) You can now add or delete subnets from your EKS cluster.

Please note that the subnets passed through an update API call must comprise the same set of AZs as originally passed when creating the cluster.

Best,

Young