What is EKS, and what are AWS services and traffic flows?

 

1. EKS (Elastic Kubernetes Service).

AWS ka fully managed Kubernetes service hai.
Iska matlab hai ki Amazon aapke liye Kubernetes control plane ka setup, management, aur scaling handle karta hai, taki aap sirf apne applications aur workloads pe focus kar saken.

2. What is the difference between Kubernetes and EKS?

Feature	🔹 Kubernetes (General)	🔹 EKS (on AWS)
Who Manages?	Aap khud setup & manage karte ho	AWS manage karta hai Control Plane
Setup Complexity	Manual setup required (Kubeadm, Kops, etc)	Easy setup with eksctl or Console
Control Plane Cost	Free (if self-managed)	~$0.10/hr per cluster
Scalability	Manual or scripted	Built-in with AWS Auto Scaling
Integration	Custom setup for IAM, VPC, Logs, etc.	Direct AWS integrations available
Security	Aapko manage karna padta hai	IAM, OIDC, IRSA built-in
Ease of Use	Complex for beginners	Beginner-friendly via eksctl

3. Major AWS Services Used in EKS:

AWS Service	Role in EKS Cluster
EKS	Manages Kubernetes control plane (API server, etcd)
EC2	Worker nodes (if Fargate not used)
Fargate	Serverless compute for Pods
IAM	Permissions for user & nodes (IRSA, RBAC)
VPC, Subnets	Networking: Public/private subnets
Security Groups	Control traffic between control plane & nodes
CloudFormation	eksctl/tf use this to provision infra

3. Traffic Flow in EKS (From Outside to Pods),.

4. AWS EKS Cluster – Core objects

5. EKS Cluster – Core Objects Detailed.