InfraBench Concentric Architecture
Lifecycle ⊃ Provisioning ⊃ Stack & Faults
Setup Provision machines (CPU/mem/net, image cache) · TrialQueue bounds concurrency trial/queue.py:39
Decommission
stop(delete=…)
base.py:291
heal_all()
injection.py:320
Provisioning engines
CloudLab
bare metal · baremetal/cloudlab.py
libvirt+KVM
VM · vm/standalone.py
Docker
container · container/docker.py
setup.sh + bootstrap.sh
app bring-up
Layer stack (L1–L6)
L6 Servicemisconfig · feature flags
L5 Platformscheduler · RBAC
L4 Storagequorum · WAL
L3 Kernelsyscall · OOM · clock
L2 Virtruntime · vSwitch
L1 Hardwaredisk · NIC · power
Fault injectors · Scenario engine
Process kill pkill · injection.py:71
Network partition iptables DROP · :95
Disk delay / fill tc · dd · :159 / :223
CPU stress :268
Network shaping tc/netem · network.py
Dynamic & cascading adaptive, chained L1→L4→L6 timelines
Periodic Verifier → EventLog periodic_verifier.py:20
Operations monitoring dangerous ops + cascade triggers → EventLog
Management
ScenarioController
+ Agent · Faults
+ Verification
+ Ops monitoring
Restart: container · device
Bootstrap environment/bootstrap.sh brings up Redis / Ceph / HDFS / etcd / Cassandra and drives the system to its test state.