How to provision an AWS EKS cluster using Terraform

Terraform is an Infrastructure as Code tool that lets you define both cloud and on-premises resources in human-readable configuration files. This guide will help you use Terraform to deploy to EKS.

This repository contains configuration to provision:

• 1 VPC eks_vpc
• 3 Public Subnets10.111.0.0/19 10.111.32.0/19 10.111.64.0/19, 3 Private Subnets10.111.96.0/19 10.111.128.0/19 10.111.160.0/19
• 4 Routing Tables
• 1 Internet Gateway
• 3 NAT Gateway in the different public subnets High Availability
• 1 EKS cluster

The following architecture:

Provision Infrastructure

Update the configurations based on your personal requirements.

When you get ready, run the commands below:

terraform init
terraform plan -var-file eks.tfvars
terraform apply -var-file eks.tfvars

Connecting to the EKS

Using the same AWS account profile that provisioned the infrastructure, you can connect to your EKS by updating your local kubeconfig:

aws eks --region us-west-2 update-kubeconfig --name devops-demo-eks

Testing

Verify kubectl with the command below:

kubectl get svc

Cleanup

To destroy previously-created infrastructure with Terraform, run the command below:

terraform destroy -var-file eks.tfvars