feat: Added support for client.authentication.k8s.io/v1beta1 (#1550)

Author: vsamidurai

README.md

@@ -225,6 +225,7 @@ Apache 2 Licensed. See [LICENSE](https://github.com/terraform-aws-modules/terraf
 | <a name="input_fargate_profiles"></a> [fargate\_profiles](#input\_fargate\_profiles) | Fargate profiles to create. See `fargate_profile` keys section in fargate submodule's README.md for more details | `any` | `{}` | no |
 | <a name="input_fargate_subnets"></a> [fargate\_subnets](#input\_fargate\_subnets) | A list of subnets to place fargate workers within (if different from subnets). | `list(string)` | `[]` | no |
 | <a name="input_iam_path"></a> [iam\_path](#input\_iam\_path) | If provided, all IAM roles will be created on this path. | `string` | `"/"` | no |
+| <a name="input_kubeconfig_api_version"></a> [kubeconfig\_api\_version](#input\_kubeconfig\_api\_version) | KubeConfig API version. Defaults to client.authentication.k8s.io/v1alpha1 | `string` | `"client.authentication.k8s.io/v1alpha1"` | no |
 | <a name="input_kubeconfig_aws_authenticator_additional_args"></a> [kubeconfig\_aws\_authenticator\_additional\_args](#input\_kubeconfig\_aws\_authenticator\_additional\_args) | Any additional arguments to pass to the authenticator such as the role to assume. e.g. ["-r", "MyEksRole"]. | `list(string)` | `[]` | no |
 | <a name="input_kubeconfig_aws_authenticator_command"></a> [kubeconfig\_aws\_authenticator\_command](#input\_kubeconfig\_aws\_authenticator\_command) | Command to use to fetch AWS EKS credentials. | `string` | `"aws-iam-authenticator"` | no |
 | <a name="input_kubeconfig_aws_authenticator_command_args"></a> [kubeconfig\_aws\_authenticator\_command\_args](#input\_kubeconfig\_aws\_authenticator\_command\_args) | Default arguments passed to the authenticator command. Defaults to [token -i $cluster\_name]. | `list(string)` | `[]` | no |

locals.tf

@@ -163,13 +163,14 @@ locals {
   ]
 
   kubeconfig = var.create_eks ? templatefile("${path.module}/templates/kubeconfig.tpl", {
-    kubeconfig_name                   = coalesce(var.kubeconfig_name, "eks_${var.cluster_name}")
-    endpoint                          = local.cluster_endpoint
-    cluster_auth_base64               = local.cluster_auth_base64
-    aws_authenticator_command         = var.kubeconfig_aws_authenticator_command
-    aws_authenticator_command_args    = coalescelist(var.kubeconfig_aws_authenticator_command_args, ["token", "-i", local.cluster_name])
-    aws_authenticator_additional_args = var.kubeconfig_aws_authenticator_additional_args
-    aws_authenticator_env_variables   = var.kubeconfig_aws_authenticator_env_variables
+    kubeconfig_name                         = coalesce(var.kubeconfig_name, "eks_${var.cluster_name}")
+    endpoint                                = local.cluster_endpoint
+    cluster_auth_base64                     = local.cluster_auth_base64
+    aws_authenticator_kubeconfig_apiversion = var.kubeconfig_api_version
+    aws_authenticator_command               = var.kubeconfig_aws_authenticator_command
+    aws_authenticator_command_args          = coalescelist(var.kubeconfig_aws_authenticator_command_args, ["token", "-i", local.cluster_name])
+    aws_authenticator_additional_args       = var.kubeconfig_aws_authenticator_additional_args
+    aws_authenticator_env_variables         = var.kubeconfig_aws_authenticator_env_variables
   }) : ""
 
   launch_configuration_userdata_rendered = [

templates/kubeconfig.tpl

@@ -20,7 +20,7 @@ users:
 - name: ${kubeconfig_name}
   user:
     exec:
-      apiVersion: client.authentication.k8s.io/v1alpha1
+      apiVersion: ${aws_authenticator_kubeconfig_apiversion}
       command: ${aws_authenticator_command}
       args:
 %{~ for i in aws_authenticator_command_args }

variables.tf

@@ -191,7 +191,12 @@ variable "workers_additional_policies" {
   type        = list(string)
   default     = []
 }
+variable "kubeconfig_api_version" {
+  description = "KubeConfig API version. Defaults to client.authentication.k8s.io/v1alpha1"
+  type        = string
+  default     = "client.authentication.k8s.io/v1alpha1"
 
+}
 variable "kubeconfig_aws_authenticator_command" {
   description = "Command to use to fetch AWS EKS credentials."
   type        = string