As organizations increasingly adopt Kubernetes for managing microservices and containerized workloads, securing these deployments becomes paramount. A Demilitarized Zone (DMZ) cluster, a proven security architecture that isolates public-facing services from sensitive internal resources, ensures robust protection against external threats. In this article, we’ll explore the concept of DMZ clusters in Kubernetes, their importance, and how to implement these robust security measures effectively.
What Is a DMZ Cluster in Kubernetes?
A DMZ is a network boundary that exposes specific services to external traffic while safeguarding the internal network. In Kubernetes, this architecture is implemented by creating separate clusters for public-facing applications and internal workloads, ensuring limited and tightly controlled communication between them.