Scaling Docker Seccomp & AppArmor Profiles (6462)

Technical Overview

Engineering breakdown of Scaling Docker Seccomp & AppArmor Profiles (6462). Bare-metal hardware performance requires isolated kernel parameters, syscall filtering, and mandatory access control (MAC) policies that scale across thousands of containers without introducing latency spikes or audit fatigue.

The 6462 Profile Set

Profile 6462 represents a curated baseline for high-density multi-tenant workloads. It combines a default-deny Seccomp filter (allowlisting ~140 syscalls) with an AppArmor profile enforcing path-based confinement, capability dropping, and network namespace isolation. The profile is generated via docker-slim build-time analysis and hardened with syscall_intercept for clone3, pidfd_open, and io_uring edge cases.

Scaling Challenges

• Policy Distribution: Pushing 6462 to 10k+ nodes via OPA Gatekeeper + Kyverno without control-plane saturation.
• Audit Log Volume: Seccomp violations generate ~2.4M events/day per 1k pods; requires eBPF-based aggregation (Cilium Tetragon) before Loki ingestion.
• Profile Drift: Container image rebases mutate syscall footprints; automated CI gate runs sysdig -c syscall_top diff against 6462 baseline.

Bare-Metal Optimizations

On dedicated hardware we pin IRQ affinity, isolate CPUs via cset, and disable C-states. The 6462 profile adds apparmor_parser -W write-deferral to batch policy loads during rolling updates, cutting restart latency by 38%.