This article explains how Kubernetes leverages the Linux kernel security mechanisms Seccomp, AppArmor, and SELinux together with Pod Security Standards and the built‑in admission controller to enforce fine‑grained security policies for container workloads in cloud‑native environments.
This article explains the fundamentals of Kubernetes user namespaces, their support evolution from v1.25 to v1.28, security benefits, runtime requirements, a high‑severity CVE demonstration, and upcoming integration with Pod Security Standards, providing practical guidance for cloud‑native deployments.
Kubernetes 1.22, released on August 4, introduces major changes including removal of numerous deprecated APIs, a new Pod Security Admission controller, GA of client‑go credential plugins, Server‑Side Apply, enhanced memory QoS, Windows HostProcess containers, and updates to the release cycle and many other features.
This article outlines nine practical Kubernetes pod‑level security configurations—including security contexts, privilege escalation, non‑root users, resource limits, service account tokens, seccomp profiles, capabilities, and read‑only filesystems—to help you harden containers against attacks and improve cluster stability.
