This cheat sheet outlines how to secure Amazon EKS environments by reducing attack surface across cluster configuration, networking, and workloads. It emphasizes enforcing least privilege with RBAC, avoiding overly broad permissions, and using namespace-scoped roles. Network security focuses on default-deny policies, controlled ingress/egress, and layered defenses using security groups and advanced tools like service meshes. Cluster hardening includes private endpoints, IAM roles for service accounts, and encryption for data at rest. It also covers workload security with mechanisms like Pod Security Admission to enforce security standards. Overall, the guide stresses layered security, tight access control, and continuous monitoring to protect Kubernetes environments.

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