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https://github.com/jmcorgan/fips.git
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Johnathan Corgan
66c268a564
Move examples/docker-network/ to testing/static/ and add testing/chaos/ as a new stochastic simulation harness. testing/static/ — Static 5-node test harness: - Fixed mesh, chain, and mesh-public topologies with docker compose - Manual test scripts (ping, iperf, netem) - Build script, config generation, key derivation testing/chaos/ — Stochastic network simulation: - Python orchestrator generating N-node FIPS meshes with dynamic network conditions, driven by reproducible YAML scenarios - Topology generation: random geometric, Erdos-Renyi, or chain graphs with BFS connectivity guarantee - Per-link netem: HTB classful qdiscs with u32 filters for per-peer impairment (delay, loss, jitter), stochastic mutation across configurable policy profiles - Per-link bandwidth pacing: HTB rate limiting with configurable tiers (1/10/100/1000 mbps) randomly assigned per edge - Link flaps: tc netem 100% loss with graph connectivity protection - Node churn: docker stop/start with netem re-application on restart, shared down_nodes tracking across all managers - Traffic generation: random iperf3 sessions between node pairs - Down-node guards: all docker exec callers check container liveness, auto-detect crashed containers via is_container_running() safety net - Log collection and post-run analysis (panics, errors, sessions, MMP metrics, tree reconvergence) - chaos.sh wrapper with --seed, --duration, --verbose, --list options - Four scenarios: smoke-10, chaos-10, churn-10, churn-20
54 lines
1.0 KiB
YAML
54 lines
1.0 KiB
YAML
scenario:
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name: "chaos-10"
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seed: 42
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duration_secs: 120
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topology:
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num_nodes: 10
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algorithm: random_geometric
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params:
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radius: 0.5
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ensure_connected: true
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subnet: "172.20.0.0/24"
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ip_start: 10
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netem:
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enabled: true
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default_policy:
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delay_ms: { min: 5, max: 50 }
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jitter_ms: { min: 1, max: 10 }
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loss_pct: { min: 0, max: 2 }
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mutation:
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interval_secs: { min: 15, max: 30 }
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fraction: 0.3
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policies:
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normal:
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delay_ms: [5, 20]
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loss_pct: [0, 1]
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degraded:
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delay_ms: [50, 100]
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jitter_ms: [10, 30]
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loss_pct: [3, 8]
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terrible:
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delay_ms: [100, 200]
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jitter_ms: [30, 60]
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loss_pct: [10, 20]
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link_flaps:
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enabled: true
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interval_secs: { min: 20, max: 60 }
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max_down_links: 2
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down_duration_secs: { min: 10, max: 30 }
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protect_connectivity: true
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traffic:
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enabled: true
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max_concurrent: 3
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interval_secs: { min: 10, max: 30 }
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duration_secs: { min: 5, max: 15 }
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parallel_streams: 4
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logging:
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rust_log: "info"
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output_dir: "./sim-results"
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