karpenter addon: cannot get nodeclaims

[montanaflynn]

Describe the bug

After setting up a kubernetes cluster using the example in https://aws-quickstart.github.io/cdk-eks-blueprints/addons/karpenter/ I cannot do the following:

$ kubectl get nodeclaims
Error from server: conversion webhook for karpenter.sh/v1beta1, Kind=NodeClaim failed: Post "https://karpenter.kube-system.svc:8443/?timeout=30s": no service port 8443 found for service "karpenter"

The interesting thing is also that the blueprint addon sets up karpenter in karpenter namespace, not kube-system

Expected Behavior

Able to view nodeclaims using kubectl get nodeclaims

Current Behavior

$ kubectl get nodeclaims
Error from server: conversion webhook for karpenter.sh/v1beta1, Kind=NodeClaim failed: Post "https://karpenter.kube-system.svc:8443/?timeout=30s": no service port 8443 found for service "karpenter"

Reproduction Steps

import 'source-map-support/register';
import * as cdk from 'aws-cdk-lib';
import * as iam from "aws-cdk-lib/aws-iam";
import * as eks from "aws-cdk-lib/aws-eks";
import * as blueprints from '@aws-quickstart/eks-blueprints';
import { KubernetesVersion } from 'aws-cdk-lib/aws-eks';

const app = new cdk.App();
const blueprintID = "test-blueprint-stack"
const region = "us-west-1"

const karpenterAddOn = new blueprints.addons.KarpenterAddOn({
  version: 'v0.37.2',
  nodePoolSpec: {
    labels: {
      type: "karpenter-test"
    },
    annotations: {
      "eks-blueprints/owner": "platform-team"
    },
    requirements: [
      { key: 'node.kubernetes.io/instance-type', operator: 'In', values: ['m5.large'] },
      { key: 'topology.kubernetes.io/zone', operator: 'In', values: [`${region}a`, `${region}c`] },
      { key: 'kubernetes.io/arch', operator: 'In', values: ['amd64', 'arm64'] },
      { key: 'karpenter.sh/capacity-type', operator: 'In', values: ['on-demand'] }, // spot is also supported for cost savings, please see #2 above
    ],
    disruption: {
      consolidationPolicy: "WhenEmpty",
      consolidateAfter: "30s",
      expireAfter: "20m",
      // budgets: [{nodes: "10%"}] // budgets are supported in versions 0.34+
    }
  },
  ec2NodeClassSpec: {
    amiFamily: "AL2",
    subnetSelectorTerms: [{ tags: { "Name": `${blueprintID}/${blueprintID}-vpc/PrivateSubnet*` } }],
    securityGroupSelectorTerms: [{ tags: { "aws:eks:cluster-name": `${blueprintID}` } }],
  },
  interruptionHandling: true,
  podIdentity: false, // Recommended true if using version 0.35+; otherwise, set false (as default) to use IRSA.
});

const blueprint = blueprints.EksBlueprint.builder()
  .version(KubernetesVersion.V1_30)
  .region(region)
  .addOns(karpenterAddOn)
  .build(app, blueprintID);

const eksCluster: eks.Cluster = blueprint.getClusterInfo().cluster as eks.Cluster;
const clusterUsers = ["montana"]
for (const user of clusterUsers) {
  eksCluster.awsAuth.addUserMapping(iam.User.fromUserName(eksCluster, user, user), { username: user, groups: ['system:masters'] })
}

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.147.3 (build 32f0fdb)

EKS Blueprints Version

1.15.1

Node.js Version

v22.5.1

Environment details (OS name and version, etc.)

macOS 14.6.1 (23G93)

Other information

No response