Lifecycle ⊃ Provisioning ⊃ Stack & Faults
Setup
Provision machines (CPU/mem/net, image cache) ·
TrialQueue bounds concurrency trial/queue.py:39
Decommission
stop(delete=…)base.py:291heal_all()injection.py:320
Provisioning engines
CloudLab
bare metal ·
baremetal/cloudlab.pylibvirt+KVM
VM ·
vm/standalone.pyDocker
container ·
container/docker.pysetup.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:71Network partition iptables DROP ·
:95Disk delay / fill tc · dd ·
:159 / :223CPU stress
:268Network shaping tc/netem ·
network.pyDynamic & cascading adaptive, chained L1→L4→L6 timelines
Periodic Verifier → EventLog
periodic_verifier.py:20Operations monitoring dangerous ops + cascade triggers → EventLog
Management
ScenarioController
+ Agent · Faults
+ Verification
+ Ops monitoring
Restart: container · device
+ 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.