refactor(terraform): use aws_eks_cluster data source for dynamic clus…

…ter info

Replace hardcoded cluster endpoint and CA certificate variables with
dynamic retrieval using aws_eks_cluster data source. This change
removes the need for cluster_ca_certificate and cluster_endpoint
variables, simplifying configuration and reducing manual input.

main.tf

@@ -2,6 +2,11 @@ data "aws_eks_cluster_auth" "cluster" {
   name = var.cluster_name
 }
 
+data "aws_eks_cluster" "cluster" {
+  name = var.cluster_name
+}
+
+
 resource "null_resource" "helm_install" {
   triggers = {
     chart_name     = var.chart_name
@@ -25,8 +30,8 @@ resource "null_resource" "helm_install" {
       kind: Config
       clusters:
       - cluster:
-          server: ${var.cluster_endpoint}
-          certificate-authority-data: ${var.cluster_ca_certificate}
+          server: ${data.aws_eks_cluster.cluster.endpoint}
+          certificate-authority-data: ${data.aws_eks_cluster.cluster.certificate_authority[0].data}
         name: kubernetes
       contexts:
       - context:

variables.tf

@@ -34,16 +34,6 @@ variable "repo_url" {
   description = "URL of the Helm repository"
 }
 
-variable "cluster_ca_certificate" {
-  type        = string
-  description = "CA certificate of the cluster"
-}
-
-variable "cluster_endpoint" {
-  type        = string
-  description = "Endpoint of the cluster"
-}
-
 variable "cluster_name" {
   type        = string
   description = "Name of the cluster"