Add IRSA support (#632)

variables.tf

@@ -299,3 +299,15 @@ variable "node_groups" {
   type        = any
   default     = []
 }
+
+variable "enable_irsa" {
+  description = "Whether to create OpenID Connect Provider for EKS to enable IRSA"
+  type        = bool
+  default     = false
+}
+
+variable "eks_oidc_root_ca_thumbprint" {
+  type        = string
+  description = "Thumbprint of Root CA for EKS OIDC, Valid until 2037"
+  default     = "9e99a48a9960b14926bb7f3b02e22da2b0ab7280"
+}