EKS Deployment Using Terraform

This repository contains Terraform configurations to deploy an Amazon Elastic Kubernetes Service (EKS) cluster. The configurations enable the setup of a scalable and secure EKS cluster using Terraform, a popular Infrastructure as Code (IaC) tool.

Introduction

Amazon EKS is a managed Kubernetes service that simplifies running Kubernetes clusters on AWS. Terraform helps to define and provision infrastructure using a high-level configuration language. This project provides Terraform scripts to automate the deployment of an EKS cluster along with associated resources such as VPCs, subnets, and security groups.

Prerequisites

Before you begin, ensure you have the following:

• Terraform: Install Terraform from terraform.io.
• AWS CLI: Install the AWS CLI from aws.amazon.com/cli.
• AWS Credentials: Configure your AWS credentials using the AWS CLI or environment variables.
• kubectl: Install kubectl for interacting with your Kubernetes cluster. kubectl installation guide.

Setup Instructions

1. Clone the Repository:

   git clone https://github.com/yourusername/EKS-Deployment-Using-Terraform.git
   cd EKS-Deployment-Using-Terraform

2. Configure Terraform: Make sure you have the appropriate Terraform provider configurations and AWS credentials set up.

3. Initialize Terraform: Initialize your Terraform working directory to download the necessary providers and modules:

   terraform init

4. Plan the Deployment: Review the planned changes that Terraform will make:

   terraform plan

5. Apply the Configuration: Apply the Terraform configuration to create the EKS cluster:

   terraform apply

   Confirm the action when prompted.

6. Update kubeconfig: Update your kubeconfig to use the newly created EKS cluster:

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

   Replace <region> and <cluster-name> with your respective AWS region and EKS cluster name.

Usage

After deployment, you can interact with your EKS cluster using kubectl. For example:

• Check the cluster nodes:

  kubectl get nodes

• Deploy applications: Use Kubernetes manifests or Helm charts to deploy your applications.

Configuration

The Terraform configurations are modular and customizable. Key configuration files include:

• main.tf: Main configuration file defining the EKS cluster and VPC resources.
• variables.tf: File to define input variables for the Terraform configurations.
• outputs.tf: Outputs from the Terraform configuration, such as cluster endpoint and kubeconfig.

You can adjust the settings in variables.tf to fit your needs, such as specifying the desired instance types or cluster version.

Troubleshooting

• Terraform Initialization Issues: Ensure you have a stable internet connection and the required permissions to download Terraform providers.

• EKS Cluster Access: Ensure your AWS IAM user has the necessary permissions to create and manage EKS clusters.

• Kubernetes Access Issues: Ensure that your kubeconfig is properly configured and points to the correct cluster.