[Bug]: code in eks.tf is not updated to support new eks terraform module version 21.0.x

### Installation method

Own AWS account

### What happened?

EKS provisioning using terraform fails. I had to update the code to provision eks. code is as below

locals {
remote_node_cidr = var.remote_network_cidr
remote_pod_cidr = var.remote_pod_cidr
}

module "eks" {
source = "terraform-aws-modules/eks/aws"
version = "~> 21.0"

# 1. CLUSTER CORE (Renamed Variables)
name = var.cluster_name # Renamed from cluster_name
kubernetes_version = var.cluster_version # Renamed from cluster_version
endpoint_public_access = true # Renamed from cluster_endpoint_public_access
enable_cluster_creator_admin_permissions = true

# 2. ADDONS (Renamed Block and Updated CNI Configuration)
addons = { # Renamed from cluster_addons
vpc-cni = {
# The workshop code uses the older `configuration_values` (v20.x)
# For v21.x, we recommend using the new `addon_context` structure for CNI config:
most_recent = true
addon_context = jsonencode({
env = {
ENABLE_POD_ENI = "true"
ENABLE_PREFIX_DELEGATION = "true"
POD_SECURITY_GROUP_ENFORCING_MODE = "standard"
}
nodeAgent = {
enablePolicyEventLogs = "true"
}
enableNetworkPolicy = "true"
})
# `before_compute` is no longer needed/supported for vpc-cni in this version
}
}

vpc_id = module.vpc.vpc_id
subnet_ids = module.vpc.private_subnets

# 3. SECURITY GROUP MANAGEMENT (Renamed Variables)
# NOTE: `create_cluster_security_group = false` is likely removed or obsolete in v21.x.
# If you want to use an existing SG, you would pass `cluster_security_group_id`.
# We are removing it, as the module defaults to creating one if no ID is passed.
create_node_security_group = false

security_group_additional_rules = { # Renamed from cluster_security_group_additional_rules
hybrid-node = {
cidr_blocks = [local.remote_node_cidr]
description = "Allow all traffic from remote node/pod network"
from_port = 0
to_port = 0
protocol = "all"
type = "ingress"
}
hybrid-pod = {
cidr_blocks = [local.remote_pod_cidr]
description = "Allow all traffic from remote node/pod network"
from_port = 0
to_port = 0
protocol = "all"
type = "ingress"
}
}

node_security_group_additional_rules = {
hybrid_node_rule = {
cidr_blocks = [local.remote_node_cidr]
description = "Allow all traffic from remote node/pod network"
from_port = 0
to_port = 0
protocol = "all"
type = "ingress"
}
hybrid_pod_rule = {
cidr_blocks = [local.remote_pod_cidr]
description = "Allow all traffic from remote node/pod network"
from_port = 0
to_port = 0
protocol = "all"
type = "ingress"
}
}

# 4. REMOTE NETWORK CONFIG (Replaced/Removed Variable)
# `cluster_remote_network_config` is removed in v21.x.
# This functionality is now handled by the module's IAM Access Entries
# for hybrid network scenarios, or by `vpc-cni` configuration.
# Remove this entire block:
/*
cluster_remote_network_config = {
remote_node_networks = {
cidrs = [local.remote_node_cidr]
}
remote_pod_networks = {
cidrs = [local.remote_pod_cidr]
}
}
*/

# 5. NODE GROUPS (No changes needed here based on the errors)
eks_managed_node_groups = {
default = {
instance_types = ["m5.large"]
force_update_version = true
release_version = var.ami_release_version
use_name_prefix = false
iam_role_name = "${var.cluster_name}-ng-default"
iam_role_use_name_prefix = false
min_size = 3
max_size = 6
desired_size = 3
update_config = {
max_unavailable_percentage = 50
}
labels = {
workshop-default = "yes"
}
}
}

tags = merge(local.tags, {
"karpenter.sh/discovery" = var.cluster_name
})
}

### What did you expect to happen?

EKS Cluster should have been provisioned and failed when followed instructions on this page

https://www.eksworkshop.com/docs/introduction/setup/your-account/using-terraform

### How can we reproduce it?

Follow instructions on this page and try provisionining EKS cluster using terraform

https://www.eksworkshop.com/docs/introduction/setup/your-account/using-terraform

### Anything else we need to know?

_No response_

### EKS version

1.33

Start with eks.tf and the Terraform instructions at the linked setup page, then compare the current configuration with the terraform-aws-modules/eks/aws 21.0 requirements. Run the provisioning workflow to verify the module no longer fails; done means the EKS 1.33 cluster provisions successfully using the documented instructions.

Written by the indexing model from the issue text.