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When using containers on AWS, Kubernetes is a popular choice, and AWS offers a managed service called Elastic Kubernetes Service (EKS). AWS handles the control plane (costing ~$0.10/hour), while you manage worker nodes, which can be Fargate or EC2 instances.
While many guides use EKSCTL, AWS Console, or Terraform, you can also deploy EKS using AWS Cloud Development Kit (CDK). Below is an example demonstrating how to set up an EKS cluster with CDK.
Read more: Deploying an EKS Cluster with AWS CDK
You Should Know:
1. Prerequisites for EKS with CDK
- AWS CLI configured with proper permissions.
- Node.js and CDK Toolkit installed.
- Basic knowledge of Kubernetes and AWS infrastructure.
2. Initialize a CDK Project
mkdir eks-cdk-demo && cd eks-cdk-demo cdk init app --language=typescript
3. Install Required CDK Modules
npm install @aws-cdk/aws-eks @aws-cdk/aws-ec2
4. Define EKS Cluster in CDK
import * as cdk from 'aws-cdk-lib';
import * as eks from 'aws-cdk-lib/aws-eks';
import * as ec2 from 'aws-cdk-lib/aws-ec2';
export class EksClusterStack extends cdk.Stack {
constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);
const vpc = new ec2.Vpc(this, 'EksVpc');
const cluster = new eks.Cluster(this, 'EksCluster', {
version: eks.KubernetesVersion.V1_21,
vpc: vpc,
defaultCapacity: 2, // Creates 2 EC2 worker nodes
});
}
}
5. Deploy the EKS Cluster
cdk deploy
6. Verify the Cluster
aws eks update-kubeconfig --name EksCluster --region us-east-1 kubectl get nodes
7. Clean Up
cdk destroy
What Undercode Say:
Deploying EKS with CDK simplifies infrastructure-as-code (IaC) by leveraging familiar programming languages. Key takeaways:
– CDK abstracts AWS CloudFormation, reducing boilerplate.
– EKS integrates seamlessly with AWS services (VPC, IAM, EC2).
– Fargate vs EC2 workers—choose based on cost and scaling needs.
– Always clean up unused resources to avoid costs.
For deeper Kubernetes management, explore:
– `kubectl apply -f deployment.yaml` (Deploy apps)
– `kubectl logs
– `kubectl scale deployment –replicas=3` (Horizontal scaling)
Expected Output:
A fully functional EKS cluster deployed via AWS CDK, accessible via kubectl, with worker nodes ready for workloads.
Read more: AWS EKS Documentation
References:
Reported By: Darryl Ruggles – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
