Hardening Kubernetes: A Practical Guide to EKS Security with Terraform and Kyverno

In this post, we will explore how to secure an Amazon EKS cluster by applying infrastructure-as-code best practices and policy-driven guardrails. We will use Terraform to provision our infrastructure and Kyverno to enforce security policies at the cluster level. 1. The Foundation: Infrastructure as Code To minimize our attack surface, we will deploy a private EKS cluster. The control plane will be inaccessible from the public internet, forcing all management traffic through a secure VPN tunnel.