How to change the security group of Amazon EKS worker nodes

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I want to add a security group to the worker nodes of Amazon EKS.

It seems that I can change "Additional security group" to add the security group to the worker nodes.

But I cannot find any way to modify "Additional security group" in AWS console.

Does anyone know how to add security groups to the worker nodes?

I can see two possible issues here:

First of all, security groups can be assigned to EKS control plane only during creation. To add additional security groups you unfortunately have to re-create your cluster
Second, the above won't help you, as this is only about the control plane. If you need to add more security groups to your worker nodes, you need to make modification on "compute" tab using launch templates

The AWS CLI now supports the --query parameter which takes a JMESPath expressions.

This means you can sum the size values given by list-objects using sum(Contents[].Size) and count like length(Contents[]).

This can be be run using the official AWS CLI as below and was introduced in Feb 2014

 aws s3api list-objects --bucket BUCKETNAME --output json --query "[sum(Contents[].Size), length(Contents[])]"

It's not possible to rename a security group, by GUI or by API.

For VPC EC2 instances

You can dynamically assign security groups assigned to VPC EC2 instances. Create a new SG with the desired name and the same rules.

It's not possible to change the security group that is assigned to EC2 classic instances.

If you must change the security group for an EC2 classic instance, then you need to:

Create an AMI from your instance, then
Launch a new copy of your instance from the AMI created in step #1, selecting the new security group at launch time.