GitOps Managed EKS Cluster

A Terraform module based on Amazon EKS Blueprints for Terraform.

The following code will deploy a cluster with the following Argo Applications:

• Cluster Autoscaler
• External Dns
• Ingress Nginx
• Metrics Server

And the following AWS EKS Add-Ons:

• CoreDNS
• EBS CSI Driver
• KubeProxy
• VPC CNI

Prerequisites

1. Have a hosted zone registered to you in Route53.
2. Have an asterisk certificate to its domain in Certificate Manager.

Usage

1. Fill the missing info in terraform/locals.tf.
2. Fill the certificate ARN in helm/add-ons/ingress-nginx/values.yaml
3. Deploy with terraform apply in the terraform folder.
4. Login to ArgoCD at argocd.${local.cluster_domain} with the password in the newly created argocd-${local.name} secret.

Flow Chart

flowchart TD;
    id1["Terraform"] --> id2["ArgoCD"] --> id3["App of Apps"];
    id1["Terraform"] --> id4["EKS Cluster"] & id5["Add-on dependencies"];
    id3["App of Apps"] --> id6["Ingress Controller"] --> id7["AWS NLB"];
    id3["App of Apps"] --> id9["Other Add-ons"];
    id4["EKS Cluster"] --> id8["Managed Node Group"];
    id5["AWS dependencies"] --> id10["Secrets"] & id11["Security Groups"] & id12["Roles & Policies"] & id13["VPC"];

References

Amazon EKS Blueprints for Terraform Documentation