added auth-config fixes

Author: Shrinidhi-59

aws/autoscaler/karpenter/1.0/main.tf

@@ -337,3 +337,15 @@ resource "aws_cloudwatch_event_target" "karpenter_interruption" {
   target_id = "KarpenterInterruptionQueue"
   arn       = aws_sqs_queue.karpenter_interruption[0].arn
 }
+
+# Add Karpenter node role to aws-auth ConfigMap using EKS access entry
+# This allows Karpenter-provisioned nodes to join the cluster
+resource "aws_eks_access_entry" "karpenter_node" {
+  cluster_name  = local.cluster_name
+  principal_arn = aws_iam_role.karpenter_node.arn
+  type          = "EC2_LINUX"
+
+  depends_on = [
+    aws_iam_role.karpenter_node
+  ]
+}

aws/autoscaler/karpenter/1.0/nodepools.tf

@@ -88,15 +88,17 @@ resource "kubernetes_manifest" "node_pool" {
                 operator = "In"
                 values   = lookup(each.value, "capacity_types", ["on-demand", "spot"])
               },
+              # Use node.kubernetes.io/instance-type instead of restricted karpenter.k8s.aws labels
+              # Generate list of instance types from families and sizes
               {
-                key      = "karpenter.k8s.aws/instance-family"
+                key      = "node.kubernetes.io/instance-type"
                 operator = "In"
-                values   = lookup(each.value, "instance_families", ["t3", "t3a"])
-              },
-              {
-                key      = "karpenter.k8s.aws/instance-size"
-                operator = "In"
-                values   = lookup(each.value, "instance_sizes", ["medium", "large", "xlarge"])
+                values = flatten([
+                  for family in lookup(each.value, "instance_families", ["t3", "t3a"]) : [
+                    for size in lookup(each.value, "instance_sizes", ["medium", "large", "xlarge"]) :
+                    "${family}.${size}"
+                  ]
+                ])
               }
             ],
             []
@@ -136,4 +138,4 @@ resource "kubernetes_manifest" "node_pool" {
   depends_on = [
     kubernetes_manifest.ec2_node_class
   ]
-}
+}