README.md

Terraform AWS EKS

This repository contains Terraform configurations used for my studies to automate the deployment of an Amazon EKS cluster.
It sets up a VPC with subnets, route tables, and necessary gateways, provisions the EKS cluster with worker nodes, configures OIDC for authentication, and integrates the AWS Load Balancer Controller for managing Kubernetes ingress resources. Helm is utilized for package management within the Kubernetes environment.

High-Level Architecture

Steps

• Networking (VPC, Subnets, Route Tables, IGW (Internet Gateway), NGW (NAT Gateway), Elastic IP)
• Cluster
• Nodes
• eksctl
• OIDC - Open ID Connect
• AWS Load Balancer Controller (to create the Ingresses)
• Helm

Docs and Resources

• VPC and subnet requirements
• Amazon EKS cluster IAM role
• Amazon EKS node IAM role
• Create an IAM OIDC provider for your cluster
• Install AWS Load Balancer Controller with Helm
• Pre-Commit Hook Terraform

Pre-Commit Hook

Current Setup:

• Terraform Validate
• Terraform Fmt -recursive
• Terraform Docs

Documentation Below Using Terraform Docs

Requirements

Name	Version
aws	5.82.2
helm	2.17.0
kubernetes	2.35.1

Providers

Name	Version
aws	5.82.2

Modules

Name	Source	Version
eks_aws_load_balancer_controller	./modules/aws-load-balancer-controller	n/a
eks_cluster	./modules/cluster	n/a
eks_managed_node_group	./modules/managed-node-group	n/a
eks_network	./modules/network	n/a

Resources

Name	Type
aws_s3_bucket.bucket	resource
aws_s3_bucket_versioning.versioning	resource

Inputs

Name	Description	Type	Default	Required
cidr_block	Network CIDR Block for VPC	string	n/a	yes
project_name	Project Name to be used to name Resources, as a tag	string	n/a	yes
region	AWS Region to create Resources	string	n/a	yes
tags	A map of tags to add to all AWS Resources	map(any)	n/a	yes

Outputs

Name	Description
ca	n/a
eks_vpc_config	n/a
endpoint	n/a
oidc	n/a
oidc_id	n/a