coulomb-social/workplans/CSOC-WP-0017-wave2-resource-right-sizing.md

id	type	title	domain	repo	status	flavor	owner	topic_slug	created	updated	related	state_hub_workstream_id
CSOC-WP-0017	workplan	Wave-2 resource right-sizing from the 2026-10-21 allocation review	communication	coulomb-social	finished	implementation	claude	coulomb-social	2026-10-21	2026-10-21	CUST-WP-0071 RESOURCE-WP-0008	e8f6f027-c245-5878-9911-5fc3dcc35426

CSOC-WP-0017 — Wave-2 resource right-sizing from the 2026-10-21 allocation review

Receiving workplan in coulomb-social for the wave-2 request changes below.

Origin: the 2026-10-21 node allocation review (RESOURCE-WP-0008-T03, feeding CUST-WP-0071-T03). Per the founder's 2026-10-21 delivery interview (the-custodian/docs/decisions/2026-10-21-cust-wp-0071-delivery-interview.md) the small adjustments form wave 2: one receiving task per owner repo, applied later in a batch. Applying wave 2 needs a separate founder approval, so every cluster-write task here is a human-gated wait. This file changes no manifest.

Apply the reviewed request changes

id: CSOC-WP-0017-T01
status: done
priority: medium
state_hub_task_id: "2d845436-34c9-58a3-97a7-46ee300da903"

Values are pod-aggregate figures from the budget file (7-day window ending 2026-10-21T06:08Z). Limits stay unchanged unless stated.

Workload (ns/name)	Pods	CPU request	CPU limit	CPU p95/peak 7d (m)	Memory request	Memory limit	Mem p95/peak (Mi)	Throttle	Action
coulomb-social/coulomb-social	1	100m → 15m	1000m	0.4/24.6	256Mi → 176Mi	1024Mi	146.2/146.3	0.0	decrease + memory down

Source and container detail:

• coulomb-social/coulomb-social: Deployment coulomb-social; resources in railiance-apps/charts/coulomb-social/values.yaml (100m/256Mi) — the chart lives in railiance-apps.

Prepared 2026-10-21 (wave-2 worker W1a; not applied). Live owner is Helm release coulomb-social (rev 16) from railiance-apps. Change: railiance-apps b7fb7b2, helm/coulomb-social-values.yaml requests 100m/256Mi → 15m/176Mi; limits stay 1000m/1Gi. The full render against live shows only resources.requests. Apply: cd railiance-apps && COULOMB_SOCIAL_IMAGE_TAG=dd83c90 make coulomb-social-deploy. The digest is pinned in the values. Strategy is Recreate, so expect a short outage while the pod restarts.

Evidence: resource-control docs/evidence/2026-10-21-node-allocation-review/2026-10-21-node-budget.md (+ .json, commit 3d9b1bd). Rule: CPU = max(floor, p95x1.5, peakx0.5) rounded up to 5m; memory request = 7d p95 working set x1.15 (only when the change is at least 64Mi).

Steps:

1. Map the pod-aggregate proposal onto the named container(s) in the source file; where a workload has several containers or pods, split by the per-pod figures in 2026-10-21-workload-usage.json and keep the sum at the proposed value.
2. Prepare the source change as a reviewed commit (no push, no sync) and record the before values here.
3. Apply only inside the batched wave-2 rollout, after founder approval, through the owner's normal deploy path (ArgoCD sync or documented helm/kubectl apply).

Verification: kubectl -n <ns> get pod -o jsonpath='{..resources}' shows the new requests; pods Ready with no new restarts or OOMKilled over 24h; for CPU decreases the throttle ratio and request latency stay at or below the 7d baseline; node request total drops by the expected delta.

Rollback: revert the source commit and re-sync/re-apply; the before values in the table above are the rollback target. Keep before/after kubectl get -o yaml captures as the receipt.

Applied — 2026-10-22 (CSOC-WP-0017-T01)

Applied under the founder's wave-2 authorization (the-custodian docs/decisions/2026-10-21-cust-wp-0071-delivery-interview.md), after a full-render diff against live that showed resources only. railiance-apps make coulomb-social-deploy, Helm revision 17. Evidence: the-custodian docs/evidence/2026-10-22-wave2-apply.md.