index.ts

import * as aws from '@pulumi/aws';
import * as eks from '@pulumi/eks';

const provider = new aws.Provider('aws', {
  region: 'eu-west-3',
});

const cluster = new eks.Cluster(
  'newcluster',
  {
    desiredCapacity: 2,
    minSize: 1,
    maxSize: 5,
    instanceType: 't3.xlarge',
    name: 'my-cluster',
    providerCredentialOpts: {
      roleArn: 'arn:aws:iam::711839938093:role/eksServiceRole',
    },
  },
  { provider }
);

// Export the cluster's kubeconfig.
export const kubeconfig = cluster.kubeconfig;

package.json

{
    "name": "pulumitest",
    "devDependencies": {
        "@types/node": "^14.11.2"
    },
    "dependencies": {
        "@pulumi/aws": "^3.5.0",
        "@pulumi/awsx": "^0.22.0",
        "@pulumi/eks": "^0.20.0",
        "@pulumi/pulumi": "^2.10.2"
    }
}