Adds all 6 ROOT 01 modules (how computers run software, the shell, filesystem navigation,
files & text, processes, users & permissions foundations), each with a real lesson,
demonstration/guided exercise, knowledge check where warranted, a hands-on Lab, and a
reflection — 35 activities, 29 new content files.
Adds 6 new hands-on Linux scenarios (linux-inspect-hardware, linux-shell-basics,
linux-filesystem-navigation, linux-files-and-text, linux-process-management,
linux-permissions-foundations) plus 2 MCQ scenarios, using the existing generic scenario/
validation engine (docs/ROOT_FOUNDATIONS_LAB_STRATEGY.md §1) — every one tested end-to-end via
the real scenario setup/validate API, including negative tests confirming they correctly FAIL
when not actually solved (e.g. the process-management scenario fails while the target process
is still running; the permissions scenario is tested against a real `su - labuser` denial).
Wires rootnode-linux-foundations-assessment (2 required + 4 random-draw scenarios) using the
existing Phase 3B assessment engine.
Adds a real, server-side ROOT 01->02->03->04->05 course prerequisite chain
(courses.prerequisites) — verified live on two students: one who completed ROOT 01 sees ROOT 02
unlock; a fresh student sees ROOT 02 correctly locked while 03/04/05 stay vacuously satisfied
(their own prerequisite courses are still empty). ROOT 06+ and the Capstone are unaffected.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Upgrades six PARTIAL modules to the gold-module standard (lesson/demonstration/
knowledge-check/guided-exercise/lab(s)/reflection), preserving every existing lab
activity_id and scenario_id: root-06-m03 (jobs/cronjobs/daemonsets), root-07-m04
(ingress/networkpolicy), root-07-m02 (configuration/secrets, converted in place
from a bare 5-lab bank), root-09-m02 (serviceaccounts/rbac), root-09-m03
(network/supply-chain security), root-10-m03 (troubleshooting framework).
root-05-m01 (20-task kubectl-fluency bank) gets a minimal bookending lesson +
reflection rather than a full redesign, since each task already carries its own
explanation. root-12-m01, root-capstone-m01, and root-09-m04 are promoted to
READY via documented exceptions (no new activities) where adding one would
misrepresent their intentional design.
Wires a new rootnode-security-assessment (exam, 60min, hint_policy disabled)
using the existing Phase 3B assessment engine: 3 required hands-on CORE
scenarios + 4 random-draw pools covering SecurityContext, RBAC, network
policy, and the 7 previously-unwired CKS MCQs. Wires the previously-unwired
readiness-probe-task scenario as an OPTIONAL practice lab in root-10-m01,
using the existing is_required model.
Adds root-11-m01-devops-platform-thinking — an honest, lesson-only ROOT 11
orientation module naming DevOps/platform engineering practices already
exercised in ROOT 05-10/12, explicit that GitOps/CI-CD/IaC/observability need
lab infrastructure this platform doesn't yet provide. No fake labs.
Adds infra/scripts/validate-course-content.js: cross-checks the DB against
scenario/content files for duplicate ids, orphans, invalid references, cycles,
sequence collisions, instructor-notes leakage, and (new) self-paced content
deferring explanation to a live instructor. 0 errors against the resulting
22 courses/modules, 163 activities, 98 scenario files.
No application code changed — every gap was satisfiable with existing tables
(course_modules, module_activities, assessment_definitions) and the existing
content-delivery pipeline.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
root-12-real-ops gains a Detect -> Triage -> Diagnose -> Mitigate ->
Recover -> Verify -> Learn incident-response framing lesson at the
front of the existing 4-incident module, and a post-incident reflection
at the end — the incidents themselves are unchanged, still deliberately
un-guided ('you are responsible for this environment,' not 'complete
this exercise'). No fixes revealed; instructor notes carry the deeper
solution guidance the student-facing lesson intentionally withholds.
root-capstone-m02-capstone-readiness — a new READY orientation module:
what the Capstone measures, how the timed/randomized draw works, time
management and troubleshooting strategy under a clock, and a genuine
self-assessment checklist. Never publishes the current draw or answers.
See docs/ROOT_CAPSTONE_READINESS.md for why this module's completion is
deliberately independent of the real capstone's server-side unlock gate.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
The Phase 6A gold-standard Health Probes module is preserved byte-for-
byte unchanged — it's the template, not a page to rewrite for
consistency.
root-10-m03-troubleshooting-framework — a new PARTIAL module
introducing a repeatable Observe -> Gather Evidence -> Form Hypothesis
-> Test -> Repair -> Validate -> Prevent Recurrence framework, applied
to a CrashLoopBackOff and a broken Service selector. Lesson,
demonstration (the full framework walked through a real
CrashLoopBackOff, command by command), knowledge check, and real Labs
(crashloop-fix, endpoint-fix-task). Sequenced between the gold module
and the existing bare-lab bank, which now sits behind it.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Four new modules, moving ROOT 09 off PLANNED and building the
22-scenario CKS-style bank into a coherent course instead of
disconnected exam tasks — see docs/ROOT_CURRICULUM_COVERAGE_MATRIX.md
for the CORE/GUIDED/INDEPENDENT/ADVANCED/ASSESSMENT-BANK classification
behind every placement.
root-09-m01-security-model-and-securitycontext — READY, full
gold-standard pattern: defense in depth, least privilege, hardening a
Pod with SecurityContext. Lesson, demonstration (a Pod before/after
hardening), knowledge check, guided exercise (a hardening checklist),
real Labs (CORE: non-root/drop-capabilities/read-only-fs/
pod-security-context; GUIDED: seccomp; ADVANCED: AppArmor; INDEPENDENT:
the generic pod-security-context duplicate), and a reflection.
root-09-m02-serviceaccounts-and-rbac — PARTIAL: workload identity and
least-privilege permissions. Lesson + knowledge check + real Labs.
root-09-m03-network-and-supplychain-security — PARTIAL: NetworkPolicy
as a security control (default-deny), image/registry trust, TLS
ingress. Lesson + knowledge check + real Labs.
root-09-m04-cluster-hardening-and-runtime — PARTIAL, deliberately
survey-depth: Pod Security Admission and a lighter treatment of
audit-policy/runtime-sandboxing topics that don't belong in the core
daily-driver path.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Two new PARTIAL modules, moving ROOT 08 off PLANNED for the first time:
root-08-m01-storage-fundamentals — ephemeral vs. persistent storage,
PV/PVC/StorageClass. Lesson + knowledge check + real Labs (emptydir-pod,
pv-pvc-mount, pvc-dynamic-task, storageclass-mcq).
root-08-m02-scheduling-resource-governance — how the scheduler places
Pods and how quotas/limits/priority/disruption budgets shape that
placement. Lesson + knowledge check + real Labs (node-label-selector,
node-taint-toleration, pod-affinity-mcq, priority-class-task,
pod-disruption-budget-task, resource-quota-ns, limitrange-task).
cluster-upgrade-mcq and etcd-backup-mcq deliberately left unwired —
ROOT 11/DevOps territory, out of this phase's scope, not overlooked.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
root-07-m03-services-and-service-discovery — a new, full gold-standard-
pattern module: the Service/Endpoints/DNS request path, choosing the
right Service type. Lesson, demonstration (a Service with zero
Endpoints — the single fastest diagnostic check for this failure
class), knowledge check, guided exercise (ClusterIP vs. NodePort vs.
LoadBalancer for three real components), a real Lab
(expose-service-basics), and a reflection.
root-07-m04-ingress-networkpolicy-foundations — a new PARTIAL module:
Ingress and NetworkPolicy at the architectural level (the security-
control framing of NetworkPolicy is deliberately deferred to ROOT 09).
Lesson + knowledge check + real Labs (ingress-task, network-policy).
Co-Authored-By: Claude Sonnet 5 <[email protected]>
root-06-m02-deployments-scaling-updates — a new, full gold-standard-
pattern module: why Deployments/ReplicaSets exist, how a rolling update
actually progresses, and what rollback restores. Lesson, demonstration
(a healthy rollout vs. one stalled on ImagePullBackOff), knowledge
check, guided exercise (planning a safe rollout strategy), real Labs
(rolling-update-task, deployment-rollback), and a reflection.
root-06-m03-jobs-cronjobs-daemonsets — a new PARTIAL module: Jobs,
CronJobs, and DaemonSets as distinct workload shapes from a
Deployment's always-on model. Lesson + knowledge check + real Labs
(job-task, cronjob-task).
Co-Authored-By: Claude Sonnet 5 <[email protected]>
root-05-m00-kubernetes-mental-model — a new, full gold-standard-pattern
front-door module for ROOT 05: what Kubernetes solves, the desired-state
model, the control-plane/worker split, and Pods/Namespaces/labels
through kubectl. Lesson, demonstration (watching a Pod get replaced
after manual deletion), knowledge check, guided exercise (planning a
Namespace layout), a real Lab (namespaces-basics), and a reflection —
sequenced ahead of the existing bare kubectl-fluency lab bank.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
ced4568andClaude Sonnet 5