Create Kubernetes Cluster On Amazon EKS | AWS Kubernetes Tutorial | AWS EKS Tutorial | EKS Part-3

Introduction

This tutorial will guide you through the process of creating a Kubernetes cluster on Amazon Elastic Kubernetes Service (EKS). As cloud-based applications are increasingly adopted, understanding Kubernetes and EKS is vital for deploying and managing containerized applications effectively. This step-by-step guide will help you set up your EKS cluster and familiarize you with essential configurations.

Step 1: Set Up AWS CLI and Configure Credentials

1. Install AWS CLI: Ensure you have the AWS Command Line Interface (CLI) installed. You can download it from the AWS CLI website.
2. Configure AWS CLI:
   • Open your terminal and run:

     aws configure
     

   • Enter your AWS Access Key ID, Secret Access Key, region (e.g., us-west-2), and output format (e.g., json).

Step 2: Create an EKS Cluster

1. Open the AWS Management Console: Go to the EKS service.
2. Create Cluster:
   • Click on Create cluster.
   • Fill in the following details:
     • Cluster name: Provide a unique name for your cluster.
     • Kubernetes version: Select the version of Kubernetes you want to use.
     • Cluster Service Role: Choose or create an IAM role for the cluster.
3. Networking Configuration:
   • Specify VPC settings, including subnets and security groups.
   • Ensure that your VPC has at least two subnets in different Availability Zones.

Step 3: Configure Node Groups

1. Add Node Groups:
   • After the cluster is created, navigate to the Compute tab.
   • Click on Add Node Group.
2. Node Group Settings:
   • Name your node group and select the IAM role.
   • Choose the instance type and the number of nodes for the group.
3. Scaling Configuration:
   • Set the minimum, maximum, and desired capacity for your nodes.

Step 4: Update kubeconfig

1. Install kubectl: Ensure you have kubectl installed to interact with your EKS cluster.
2. Update kubeconfig:
   • Run the following command to configure kubectl to use your EKS cluster:

     aws eks --region <region> update-kubeconfig --name <cluster_name>
     

   • Replace <region> and <cluster_name> with your respective values.

Step 5: Verify Cluster Setup

1. Check Cluster Status:
   • In your terminal, run:

     kubectl get svc
     

   • This command lists the services running in your cluster.
2. Confirm Node Status:
   • Run:

     kubectl get nodes
     

   • Ensure your nodes are in a Ready state.

Conclusion

You have successfully created a Kubernetes cluster on Amazon EKS and configured it for deployment. In this tutorial, you learned how to set up AWS CLI, create your EKS cluster, configure node groups, update your kubeconfig, and verify your setup.

As a next step, consider deploying a sample application to your cluster to further explore its capabilities. For more advanced configurations and management, explore the AWS EKS documentation and Kubernetes resources.