Amazon EKS
Amazon Elastic Kubernetes Service (Amazon EKS) is a managed Kubernetes service offered by AWS that makes it easy to deploy, manage, and scale containerized applications using Kubernetes on AWS or on-premises.
🔍 What is Amazon EKS?
Amazon EKS is a fully managed Kubernetes control plane, meaning AWS handles all the heavy lifting for you:
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Automatically provisions and manages the Kubernetes master nodes
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Ensures high availability across multiple Availability Zones (AZs)
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Handles updates, patches, and scaling of control plane components
⚙️ Key Components of Amazon EKS
1. Control Plane
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Fully managed by AWS
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Runs across multiple AZs
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Includes API server, controller manager, and scheduler
2. Worker Nodes
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You manage worker nodes
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Can be EC2 instances or Fargate (serverless)
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Use Amazon Machine Images (AMIs) optimized for EKS
3. EKS Add-ons
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Managed add-ons for networking (e.g., VPC CNI), observability (e.g., CloudWatch Agent), Core DNS, etc.
✅ Key Features
| Feature | Description |
|---|---|
| Managed Kubernetes | AWS manages the control plane for high availability and scalability |
| VPC Integration | Deep integration with AWS VPC for secure and fast networking |
| IAM Authentication | Uses AWS IAM for Kubernetes RBAC access |
| Fargate Support | Run containers without managing servers (serverless Kubernetes) |
| Security & Compliance | Integrated with AWS security tools like IAM, CloudTrail, and GuardDuty |
| Integration with AWS Services | Works with CloudWatch, App Mesh, Load Balancer Controller, ALB, etc. |
| Multi-cluster and hybrid | EKS Anywhere allow you to run EKS on-premises |
🚀 Use Cases
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Microservices Architecture
Run and scale distributed services with service discovery, load balancing, and observability. -
Machine Learning Workloads
Run TensorFlow, PyTorch, etc., with GPU-enabled EC2 instances in EKS. -
CI/CD Pipelines
Build automated pipelines with EKS, CodePipeline, ArgoCD, etc. -
Hybrid Deployments
Use EKS Anywhere for consistent Kubernetes in on-prem or edge environments.
🛠️ How to Deploy EKS
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Create a cluster using AWS Management Console, CLI, or Infrastructure as Code (like Terraform or CDK).
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Launch worker nodes (EC2 or Fargate).
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Configure
kubectlusing AWS CLI with theaws eks update-kubeconfigcommand. -
Deploy workloads using YAML manifests or Helm charts.
🔐 Security in EKS
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IAM Roles for Service Accounts (IRSA)
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Kubernetes RBAC
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Network Policies
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EKS-optimized AMIs with regular security updates
📈 Monitoring & Logging
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Amazon CloudWatch for metrics and logs
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AWS X-Ray for tracing
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Use Fluent Bit or Fluentd for custom log routing
🔄 Comparison with Similar Services
| Feature | Amazon EKS | Google GKE | Azure AKS |
|---|---|---|---|
| Control Plane Mgmt | Fully managed | Fully managed | Fully managed |
| Serverless Nodes | Yes (Fargate) | Yes (GKE Autopilot) | Yes (AKS Virtual Nodes) |
| Multi-AZ Support | Yes | Partial | Yes |
| Deep AWS Integration | ✅ | ❌ | ❌ |
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