Files
rootnode-academy/content/root/root-05-kubernetes-foundations/m01-pods-and-kubectl-basics/21-reflection.md
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ced4568andClaude Sonnet 5 7f6e1857c0 feat(curriculum): Phase 6C module upgrades, security assessment bank, ROOT 11 orientation
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]>
2026-08-26 11:20:17 -05:00

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Markdown

# Reflection: Naming Your Gaps While They're Still Cheap to Close
You just worked through twenty independent `kubectl` tasks. Before moving on, take a few
minutes to consolidate what actually stuck versus what you'd need to look up again.
## Reflection questions
1. Which THREE of these twenty commands do you feel genuinely confident using again right now,
without a hint? Name them specifically.
2. Which ONE command surprised you the most — either because you didn't know it existed, or
because it did something different than you expected?
3. `kubectl explain`, `kubectl patch`, and JSONPath output are commands a lot of engineers never
learn early and end up rediscovering the hard way, mid-incident, years later. Now that you've
used all three, where do you think you'd actually reach for one of them in a real debugging
situation?
## Real Ops takeaway
**Fluency gaps are cheap to close now and expensive to close later.** Right now, not knowing
`kubectl patch` costs you a few minutes rereading this module. In a live incident six months
from now, not knowing it costs you minutes you don't have while a Service is down. Naming your
gaps here, while the stakes are zero, is how you make sure you close them before they matter.
**Breadth practice is not busywork.** It's easy to dismiss twenty small tasks as less valuable
than one big project — but the twenty small tasks are what make the big project fast to execute
later. This is the same discipline you'll rely on for the rest of ROOT_: build the vocabulary
now, apply it under pressure later.
This module is complete. Continue to the next module.
## Instructor Notes
**Discussion questions for a live classroom:** question 3 works well as a round-robin — go
person to person and have each name a different command, so the group collectively surfaces
most of the twenty rather than converging on the same one or two obvious answers.
**Approximate timing:** 8-10 minutes live discussion; 5 minutes self-paced writing.
**Expected takeaway:** Students should leave this module able to name their own remaining gaps
specifically, not just feel generally "done" with kubectl basics.