AWS EKS Cluster Terraform Module

Terraform module to create an AWS EKS Cluster.

The EKS cluster requires:

• An existing VPC, with at least public subnets and internet gateway.
• The user/role used to when using this module should have permission enough to perform tasks using the Amazon EKS API (https://docs.aws.amazon.com/eks/latest/userguide/IAM_policies.html)

Note: Take into account that the user used when using this module will be added to the kubernetes RBAC table as admin user. So, you will need this user in order to perform the initial EKS Kubernetes cluster configuration via kubectl.

Features

This terraform module creates the following resources:

• IAM EKS Service Role (used by the cluster to itself)
• IAM Role for EKS Nodes
• IAM Instance Profile for EKS Nodes (This should be used by the EKS nodes that will joined to the cluster)
• Control Place Security Group (Security Group for Nodes to Cluster communication)
• EKS Cluster

Usage

To use the module, include something like the following in your terraform configuration:

module "eks_cluster" {
  source = "github.com/overdrive3000/terraform_eks_cluster"

  cluster_name = "mycluster"
  vpc_id       = "vpc-00000000000"
  region       = "us-east-1"

  subnets = ["subnet-00000", "subnet-11111"]
}

Inputs

Name	Description	Default	Required
cluster_name	EKS Cluster name	-	yes
vpc_id	VPC Id in which Nodes will be placed	-	yes
subnets	List of Subnet Ids for Nodes	-	yes

Output

Name	Description
service_role	EKS IAM Service Role
node_instance_profile	IAM Instance Profile of EKS Node
node_role_arn	Role ARN of EKS Node
security_group	EKS Control Plane Security Group
endpoint	EKS Endpoint
certificate-authority-data	EKS Certificate Authority Data