The aws eks list-clusters command can be used to list your Elastic Kubernetes Service (EKS).

~]$ aws eks list-clusters
{
    "clusters": [
        "my-cluster"
    ]
}

And then the aws eks list-nodegroups command can be used to list the Node Groups.

~]$ aws eks list-nodegroups --cluster-name my-cluster
{
    "nodegroups": [
        "my-node-group"
    ]
}

And then the aws eks describe-nodegroup command can be used to show more details about a node group.

~]$ aws eks describe-nodegroup --cluster my-cluster --nodegroup-name my-node-group
{
    "nodegroup": {
        "nodegroupName": "my-node-group",
        "nodegroupArn": "arn:aws:eks:us-east-1:123456789012:nodegroup/my-cluster/my-node-group/64c5af1a-cdfa-3633-9f1d-042ef5fa8676",
        "clusterName": "my-cluster",
        "version": "1.27",
        "releaseVersion": "1.27.5-20231002",
        "createdAt": "2023-10-23T15:24:15.391000-05:00",
        "modifiedAt": "2023-10-23T15:24:15.391000-05:00",
        "status": "CREATING",
        "capacityType": "ON_DEMAND",
        "scalingConfig": {
            "minSize": 1,
            "maxSize": 1,
            "desiredSize": 1
        },
        "instanceTypes": [
            "t3.small"
        ],
        "subnets": [
            "subnet-11122233344455566",
            "subnet-22233344455566677",
            "subnet-33344455566677788"
        ],
        "amiType": "AL2_x86_64",
        "nodeRole": "arn:aws:iam::123456789012:role/eks/my-role",
        "diskSize": 20,
        "health": {
            "issues": []
        },
        "updateConfig": {
            "maxUnavailable": 1
        },
        "tags": {
            "Environment": "Development"
        }
    }
}