Day 43: Scaling and Managing Kubernetes Clusters with Amazon EKS
100 Days of Cloud (AWS)
Welcome to Day 43. Today we will learn how to scale and manage Kubernetes Clusters with Amazon EKS. In this lab you need to udenderstand why we need to use AWS EKS and how to configure production ready EKS cluster.
What is AWS EKS?
AWS EKS (Amazon Elastic Kubernetes Service) is a managed Kubernetes service provided by Amazon Web Services that makes it easy to run, manage, and scale Kubernetes clusters on AWS.
What does AWS EKS do?
AWS EKS runs the Kubernetes control plane for you, so you don’t need to install or maintain:
Kubernetes master nodes
etcd database
Control plane security patches
Kubernetes version upgrades
You focus only on deploying and managing your applications.
Key Components of AWS EKS
1️⃣ Control Plane (Managed by AWS)
AWS manages:
API Server
Scheduler
Controller Manager
etcd (cluster state)
✔ Highly available
✔ Secure
✔ Automatically patched
2️⃣ Worker Nodes (Managed by You or AWS)
These run your applications (pods).
You can choose:
EC2 worker nodes (full control)
Managed Node Groups (AWS-managed EC2)
AWS Fargate (serverless, no EC2 to manage)
Why use AWS EKS?
✅ High Availability
- Control plane runs across multiple Availability Zones
✅ Security
Integrated with IAM
Supports private cluster endpoints
Works with VPC security groups
✅ Scalability
Auto scaling for nodes and pods
Handles large production workloads
✅ Kubernetes Compatible
Fully CNCF-certified Kubernetes
Use standard Kubernetes tools and manifests
When should you use EKS?
Use EKS when:
You want Kubernetes in production
You need high security and availability
You already use AWS services (ALB, IAM, VPC, RDS, S3, etc.)
You want less operational overhead
Congratulations you did it. It looks good. This lab was successfully completed without any errors. See you in day 44. If you have any issues please let me know I will be happy to assist you. Stay tuned and learn together. If you find my article useful, please kindly like and share it.
