Writeup on how we built runtime enforcement into our k8s agent with eBPF instead of shipping Falco alongside it. Covers the syscall tracepoint design, in-kernel filtering with BPF maps, why we picked SIGKILL over BPF LSM, and a staging postmortem where enforcement wasn't namespace-scoped and we took out our own Harbor, Cilium, and RabbitMQ. submitted by /u/JulietSecurity [link] [comments]