I've been trying to create Windows EKS clusters and every time I try it I actually get Linux nodes instead. I tried with this command to add them to an existing cluster: eksctl create nodegroup --cluster=apama-windows --node-ami-family=WindowsServer2022CoreContainer --node-volume-size=200 --instance-selector-vcpus=16 --instance-selector-cpu-architecture x86_64 --spot

We tried creating a complete cluster including nodes with:

---
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: apama-windows
  region: eu-north-1

managedNodeGroups:
  - name: linux-ng
    instanceSelector:
      vCPUs: 2
    minSize: 1
    maxSize: 2
    spot: true

  - name: windows-managed-ng
    amiFamily: WindowsServer2022CoreContainer
    instanceSelector:
      vCPUs: 16
    minSize: 1
    maxSize: 3
    volumeSize: 200
    spot: true

It complained that we would need to run eksctl utils install-vpc-controllers --name=apama-windows --region=eu-north-1 --approve, but created linux nodes so it wouldn't matter.

I tried creating linux nodes only, then running that command, then adding windows nodes. That command failed with Error: error installing VPC controller: creating CertificateSigningRequest: constructing REST client mapping for certificates.k8s.io/v1beta1, Kind=CertificateSigningRequest: no matches for kind "CertificateSigningRequest" in versions ["certificates.k8s.io/" "certificates.k8s.io/v1beta1"], but I ensured we had running VPC controllers, then tried to add nodes, then still got linux nodes.

I tried with 2022Core, 2019Core and 2022Full.

What's going on?