Explore container kernel development with Christian Brauner from Canonical in this 51-minute Linux Foundation talk. Dive into topics such as reworking procfs, time namespaces, retrieving and injecting file descriptors into processes, efficiently closing multiple file descriptors, using pidfds for namespace management, and spawning containers directly into cgroups. Gain valuable insights into the intricacies of container technology and kernel-level optimizations for improved container management and performance.