AWS EKS Cluster using Terraform

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Overview

This Terraform project to creates a complete AWS EKS cluster (including networking, IAM roles, and security. It also sets up S3 and DynamoDB for Terraform state management.

Resources Created

• EKS Cluster and managed Node Group
• VPC with public and private subnets
• Internet Gateway and NAT Gateway
• Route Tables
• Required IAM roles and policies
• S3 bucket and DynamoDB table for remote tf state (storage and locking)

Requirements

• Install Terraform
• AWS Account with EKS and EC2 permissions
• AWS Cli (update/set credentials with aws configure)

Before You Run Terraform

1. Create S3 Bucket and DynamoDB Table for Backend

1. Navigate to the backend-creation directory:

   cd backend-creation

2. Initialize Terraform and apply the configuration:

   terraform init
   terraform apply

   This will create the necessary S3 bucket and DynamoDB table for storing and locking the Terraform state.

3. Note down the outputs for the S3 bucket name and DynamoDB table name.

2. Update the backend.tf File

1. Open the backend.tf file in the main directory.

2. Update the bucket and dynamodb_table fields with the values from the previous step:

   terraform {
     backend "s3" {
       bucket         = "your-s3-bucket-name"      # Replace with the created bucket name
       key            = "terraform/state.tfstate" # State file path
       region         = "us-east-1"               # Match the region of the bucket
       dynamodb_table = "tf-locking-state"        # Replace with the DynamoDB table name
     }
   }

Usage

• Just Clone this repo
• Ensure the AWS credentials are set correctly using aws configure.
• Make sure to update defualt values in variables.tf or create your own terraform.tfvars file as mentioned in last step.
• Run terraform init to initialize the project
• Run terraform apply terraform apply to create the EKS cluster