https://blog.sdfg.com.ar/tags/userns-in-kubernetes-series/Recent content in Userns-in-Kubernetes-Series on Rat against the machineHugoen-usSun, 12 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-part-iii/Sun, 12 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-part-iii/How user namespaces are implemented in Kubernetes: pod UID/GID range allocation, the data structures used and how containerd and runc wire up idmap mountshttps://blog.sdfg.com.ar/posts/userns-in-kubernetes-part-ii/Sat, 11 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-part-ii/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/userns-in-kubernetes-part-i/Fri, 10 Apr 2026 00:00:00 +0000https://blog.sdfg.com.ar/posts/userns-in-kubernetes-part-i/User namespaces reached GA in Kubernetes 1.36. Learn how to use it, how it compares to existing security mechanisms, and what versions you need across the stack.