For Medium blog on Crossplane

crossplane-xr-eks.yaml

apiVersion: cluster.awsblueprints.io/v1alpha1
kind: amazonEks
metadata:
  name: xplane-eks-cluster
  namespace: default
spec:
  compositionSelector:
    matchLabels:
      awsblueprints.io/provider: aws
      awsblueprints.io/environment: dev
      service: eks
  resourceConfig:
    providerConfigName: aws-provider-config
    region: eu-west-1
  parameters:
    #EKS Input parameters
    version: "1.21"
    endpointPrivateAccess: false
    endpointPublicAccess: true
    subnetIds: # Update your subnet ids
      - "subnet-abc"
      - "subnet-def"
      - "subnet-ghi"
  managedNodeGroups:
    minSize: 2
  writeConnectionSecretToRef:
    name: xplane-eks-cluster