Enforcing Kubernetes Network Policies with Istio and Cilium for Zero Trust
In today’s complex, distributed application landscape, securing microservices within Kubernetes environments is paramount. The traditional perimeter-based security model is no longer sufficient, giving way to the “Zero Trust” philosophy: never trust, always verify. This approach demands strict enforcement of network policies, ensuring that every interaction between services is authenticated, authorized, and encrypted, regardless of its origin. While Kubernetes offers native Network Policies, achieving comprehensive Zero Trust often requires more advanced tools. This article explores how the powerful combination of Istio and Cilium can elevate your Kubernetes security posture to meet the stringent demands of Zero Trust.