Scaling Docker Seccomp & AppArmor Profiles (5260)

Technical Overview

Engineering breakdown of Scaling Docker Seccomp & AppArmor Profiles (5260). Bare-metal hardware performance requires isolated kernel parameters, syscall filtering, and mandatory access control policies that scale across thousands of containers. This article explores the architecture of profile distribution, caching strategies, and runtime enforcement overhead, with a focus on minimizing latency while maximizing security coverage.

Profile Compilation Pipeline

We leverage a CI/CD pipeline that compiles Seccomp JSON profiles into BPF bytecode and AppArmor profiles into binary policy blobs. The pipeline uses seccomp-gen and apparmor_parser with incremental builds, enabling hot-reloads without container restarts.

Distributed Profile Store

A gRPC-backed profile registry (built on etcd) serves compiled profiles to container runtimes via a sidecar agent. The agent caches profiles in-memory and validates checksums on each container start, reducing syscall overhead to < 5µs per container.