Passing oidc provider arn as var instead of calculating it

main.tf

@@ -1,14 +1,6 @@
 data "aws_caller_identity" "current" {
 }
 
-data "aws_eks_cluster" "cluster" {
-  name = var.cluster_name
-}
-
-data "aws_eks_cluster_auth" "cluster_auth" {
-  name = var.cluster_name
-}
-
 locals {
   account_id = data.aws_caller_identity.current.account_id
   tags = merge({
@@ -18,12 +10,7 @@ locals {
     "boc:created_by"        = "terraform"
   }, var.additional_tags)
 
-  aws_eks_cluster_auth = data.aws_eks_cluster_auth.cluster_auth
-  aws_eks_cluster      = data.aws_eks_cluster.cluster
-  oidc_url = data.aws_eks_cluster.cluster.identity[0].oidc[0].issuer
-  oidc_domain = replace(local.oidc_url, "https://", "")
-  oidc_arn = "arn:aws-us-gov:iam::${local.account_id}:oidc-provider/${local.oidc_domain}"
-
+  oidc_arn = var.oidc_provider_arn
 }
 
 module "tempo-irsa-role" {

variables.tf

@@ -50,6 +50,11 @@ variable "tempo_tag" {
   default     = "2.5.0"
 }
 
+variable "oidc_provider_arn" {
+  description = "The ARN in the EKS cluster for the OpenID Connect identity provider."
+  type        = string
+}
+
 # Prometheus data for metrics generator
 variable "prometheus_svc" {
   description = "Prometheus service name."