105 of the 147 CKA reference solutions had you type what nobody types
in the exam: heredoc manifests, sed, JSON patches, kubectl wait, loops,
command substitution, jsonpath into files. Each is rewritten as the
lessons are: a generator and the lines to add in vim, a manifest pasted
from the docs page it names, kubectl edit, ssh NODE and sudo -i, or a
value read off the screen and echoed. The other 42 were commands typed
as they stand already.
A solution can now be parts (sim/bank.py cmd, hand) as a lesson step's
show is. The page and ./ksim solution N render it as Markdown, each
thing to type a block of its own that a click copies, with the edit
beneath it. A solution in parts is its own audit script: load_track
runs its parts, and for each edit by hand the script beside it, so the
solution you read is the one proven. Their separate scripts in
cka/solve.py are dropped, and a task that has both is refused.
./ksim solution lint [N|DOMAIN..] reads what the solutions have you
type against TYPING_TRAPS: the CKA bank is clean. Q49's params gain
the plural stem and shortName the solution spells out (no new draws);
Q103, ported from CKAD Q23, takes a solution of its own.
Audited from a copy with renamed hosts: Q3-Q67 (52 tasks) all solved by
their parts, after two waits were added to the audit scripts (Q43's
DNS record, Q53's Pods); Q68-Q147 still running.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BNSZLLsGXTMBsw17kDunkQ
Add lessons: untimed guided labs, one per curriculum objective, on a
host of their own, in the browser and in the terminal. Each step has
a check, a hint and its commands; a lesson writes no history or
scores, only a done mark on its objective. CKAD 2.1-2.4 (24 steps)
and all 27 CKA objectives (135 steps) have one, and `./ksim lesson
audit` proves that every step fails, is done by its own commands,
then passes.
Add CKA tasks 132-147 (cka/bank_course.py) on what a full CKA course
teaches beyond the bank: a real upgrade from v1.36, a drain under a
PodDisruptionBudget, QoS and eviction, in-place resize, kube-proxy's
chains, encryption at rest, an operator, and CSI expansion, snapshots
and clones (ensure_csi_hostpath).
Move CKA and CKS to Kubernetes v1.37 and rebuild the hosts on Ubuntu
24.04, with kubelet, kubeadm and kubectl as held packages from
pkgs.k8s.io; the desktop runs Ubuntu too. Hosts gain man pages,
hexdump and xxd.
Fix CKS Q4, which gave 3 of 12 points untouched, and CKA Q4 and Q49,
whose solutions raced their new CRD.
Audited on v1.37: CKA 147/147, CKAD 105/105, CKS 109/110 (Q103, a
Falco task, failed to seed once and awaits a re-audit); lessons: 135
of 135 CKA steps and 24 of 24 CKAD steps.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
