https://blog.sdfg.com.ar/Recent content on Rat against the machineHugoen-usSun, 12 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-implementation/Sun, 12 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-implementation/How user namespaces is implemented in Kubernetes: kubelet UID/GID allocation, the data-structures used and how containerd and runc wire up idmap mountshttps://blog.sdfg.com.ar/posts/userns-in-kubernetes-mappings/Sat, 11 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-mappings/How user namespace UID/GID mappings interact with files, why that's a problem for shared volumes, and how idmap mounts solve it.https://blog.sdfg.com.ar/posts/all-about-userns-in-kubernetes/Fri, 10 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/all-about-userns-in-kubernetes/User namespaces reached GA in Kubernetes 1.36. Learn how to use them, how they compare to existing security mechanisms, and what versions you need across the stack.