Setting up a Managed Cluster (EKS)

1. Introduction

A Managed Kubernetes Cluster on Amazon EKS (Elastic Kubernetes Service) simplifies the process of deploying, managing, and scaling Kubernetes applications. This lesson will guide you through the setup process in a structured manner.

2. Prerequisites

• An AWS account
• Command-line tools: AWS CLI, kubectl, and eksctl
• Basic understanding of Kubernetes concepts

3. Step-by-Step Setup

Follow these steps to set up your managed EKS cluster:

1. Install AWS CLI:

   Ensure you have the AWS CLI installed. You can check your installation with:

   aws --version

2. Configure AWS CLI:

   Run the following command to configure your AWS CLI with your access key, secret key, and region:

   aws configure

3. Install eksctl:

   Install eksctl, which is a command-line tool for creating and managing EKS clusters:

   curl --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_Linux_amd64.tar.gz" | tar xz -C /tmp

   sudo mv /tmp/eksctl /usr/local/bin

4. Create an EKS Cluster:

   Use eksctl to create your EKS cluster with the following command:

   eksctl create cluster --name my-cluster --region us-west-2 --nodes 2

   This command will create a cluster named "my-cluster" in the us-west-2 region with 2 nodes.

5. Update kubeconfig:

   After the cluster is created, update your kubeconfig file:

   aws eks --region us-west-2 update-kubeconfig --name my-cluster

6. Verify the Cluster:

   Check if your cluster is running:

   kubectl get svc

4. Best Practices

• Regularly update your Kubernetes version.
• Monitor cluster resources and performance.
• Implement role-based access control (RBAC).
• Use Node Groups for scaling.

5. FAQ