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ben.stull 3713299f08 reshape: move OHM transcripts under ohm/ for org-wide multi-app layout; add org-wide root README

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Session 0053.0 — Transcript

Date: 2026-05-31 → 2026-06-01 Goal: Build the Patchwatch Phase 1 cloud runner (ohm-rfc ROADMAP #43, proposal §6) — the always-on, read-only incarnation of flotilla audit as a scheduled Cloud Run job that alerts on fast/mitigation findings.

Outcome: Shipped flotilla v1.7.0 (cloud-runner code + image + provisioning) and v1.7.1 (provisioning-script fixes found live). The runner is fully provisioned in wiggleverse-ohm and verified end-to-end: a scheduler-triggered Cloud Run execution resolved the private pin 0.31.3, scanned all three network-readable layers with zero scanner_errors, and exited non-zero on the live tqdm fast-lane finding (the intended alert).

Highlights / surprises:

Two real bugs surfaced by the first-ever wheel install of flotilla (the runner image): a transient Secret Manager failure crashed the whole audit instead of degrading; __version__ couldn't resolve in site-packages.

A parallel session's in-progress SPEC.md edit landed in the shared checkout mid-session and got swept into a commit — caught before push, un-committed, left intact for its owner (the worktree-isolation lesson, realized: see feedback_worktree_for_parallel_git).

Plan

Slice 1 — flotilla audit cloud-runner readiness (v1.7.0). --layer repeatable; --fail-on-lane (lane-based exit gate); --fail-on-scanner-error (blind-radar gate). Tests + SPEC §12.4 + CHANGELOG + VERSION. Tag + push.
Slice 2 — runner container + provisioning artifacts. runner/Dockerfile, runner/entrypoint.sh, runner/cloudbuild.yaml, scripts/patchwatch-runner-deploy.sh. Image builds + runs.
Slice 3 — provision GCP resources. AR repo, least-privilege runtime SA, Cloud Run job, 6h Cloud Scheduler, Cloud Monitoring email alert. Verified.
Slice 4 — docs + transcript.

Pre-session state

flotilla main = 70ba3b0 (v1.6.0 — authenticated Gitea reads). Tags through v1.6.0 pushed. Working tree clean.
Patchwatch radar logic complete and live from the laptop (flotilla audit); session 0052 resolved the private-repo blocker with a dedicated read token (wiggleverse-ohm/ohm-rfc-app-gitea-read-token). audit ran clean (9 findings, 0 scanner_errors).
The handoff offered three unblocked moves; the operator chose #3, the cloud runner, over the Phase 2 OS layer and a design-only pass (via AskUserQuestion).
The tqdm fast-lane bump (#1) stays blocked on Track Δ; the Phase 5 auto-initiate tier was explicitly off-limits.

Turn-by-turn arc

Arc 1 — Orient + scope the runner

Read the audit module, registry/DB, secret resolution, and register-ohm.sh. Key findings that shaped the design:

secrets.read_secret uses ADC via the google client library → in Cloud Run the runtime SA's metadata creds resolve it; no gcloud CLI needed in the image for the three network-readable layers.
The deployment record lives in a local SQLite (OHM_RFC_APP_FLOTILLA_DATA_DIR). The container bootstraps an ephemeral record (non-secret §13 coordinates + the gitea-read secret reference — never the bytes; §3 invariant 1).
The os layer needs IAP-SSH, which a read-only runner identity deliberately lacks → the runner scans py-app + node-app + flotilla and omits os (OS visibility stays a laptop / Phase-2 concern). This matched the operator's mental model in the handoff ("Secret Manager access" only, no IAP).

Arc 2 — Slice 1: audit cloud-runner gates (v1.7.0)

--layer made repeatable (run_audit already took a list). Added two lane/blindness-aware exit gates because the design's alerting is lane-based while the existing --fail-on is severity-based:

--fail-on-lane fast|routine|mitigation (repeatable) — catches a KEV-escalated sub-HIGH (fast at MEDIUM) that --fail-on high would miss.
--fail-on-scanner-error — a blind radar (revoked token / lost SM access) pages instead of silently reporting "all clear."

Verifying the exact runner invocation locally surfaced the first real bug: the laptop's ADC had expired mid-session, and the resulting Secret Manager failure came back as a RetryError (retry budget exhausted) — which secrets.read_secret did NOT wrap, so it escaped as a raw google exception and crashed the whole audit instead of degrading to a scanner_error (violating §2 + the Phase-1 acceptance "degrade, don't crash"). Fixed by catching the common base GoogleAPIError (covers both GoogleAPICallError and RetryError) at the read_secret boundary. Re-ran: clean degrade — app layers recorded scanner_error, the flotilla layer still scanned. This is load-bearing for an unattended runner.

Arc 3 — Slice 2: container + provisioning artifacts

runner/Dockerfile (osv-scanner binary copied from the pinned ghcr image + pip install .), runner/entrypoint.sh (ephemeral record bootstrap → audit), runner/cloudbuild.yaml, scripts/patchwatch-runner-deploy.sh.

The container run surfaced the second bug: this was flotilla's first real wheel install, and __version__ read VERSION via a repo-root-relative path that exists for source/editable runs but not in site-packages → the installed CLI crashed on import. Fixed to read the repo-root VERSION when present (live, for dev) and fall back to the installed distribution metadata.

Re-ran the container: clean degrade (no GCP creds locally), the flotilla layer scanned via the in-container osv-scanner (4 findings), and --fail-on-scanner-error correctly exited non-zero on the blind app layers. Bumped VERSION/pyproject to 1.7.0, wrote the CHANGELOG, committed on release/v1.7.0, merged --no-ff to main, tagged + pushed (via the SSH remote URL — the HTTPS origin's osxkeychain helper can't unlock non-interactively).

Arc 4 — Slice 3: provisioning (blocked on re-auth, then live)

Both the gcloud account token AND ADC needed interactive re-auth (expired during the long session) — surfaced to the operator, who re-authed (gcloud auth login). Then ran scripts/patchwatch-runner-deploy.sh. Real-world friction, each fixed in-script (→ v1.7.1):

gcloud builds submit → PERMISSION_DENIED (account lacks Cloud Build). Pivoted to a LOCAL docker build --platform linux/amd64 --provenance=false + push (the --provenance=false matters — a buildx attestation manifest list trips Cloud Run's single-image expectation), then --skip-build.
--set-env-vars PATCHWATCH_FAIL_ON_LANE=fast,mitigation — the comma parsed as a second env-var pair; fixed with gcloud's ^@^ alternate-delimiter.
SA-creation propagation lag (binding ran before the SA was visible) — the idempotent re-run cleared it.
The beta/alpha gcloud components weren't installed (non-interactive prompt) — installed them.
The monitoring channel-list filter rejected the unquoted email as ambiguous — quoted it.

Set --max-retries 0 (a --fail-on exit is deterministic; the 6h schedule is the retry cadence). Final idempotent re-run exited 0, no errors.

Verified end-to-end. A manual execution produced a full JSON report: pinned_version 0.31.3 (the SA resolved the private pin + lockfiles), scanner_errors: [], lane_counts fast=1 routine=7 mitigation=0, and Container called exit(1) — the live tqdm HIGH fast finding tripping --fail-on-lane fast. Triggering the scheduler manually created a fresh execution (proving the scheduler→job run.invoker auth path) that reached terminal failedCount=1 — the full chain through to the alert policy. Least-privilege confirmed: the runner SA has zero project-wide roles, only secretAccessor on the one secret + run.invoker on the one job.

Arc 5 — Parallel-session SPEC collision (the wrong turn)

Committing v1.7.1, git add -A swept in an ~80-line SPEC.md addition (a §19.2 "per-PR preview environments" candidate) that a parallel session had written into the shared checkout — not my work. Traced it (absent in v1.6.0 and my v1.7.0 commit; present only in the working tree). A git reset then compounded it: I reset to the stale remote-tracking ref origin/main (still at 70ba3b0, because I'd pushed via the explicit SSH URL, which doesn't advance the tracking ref) and rewound past v1.7.0 too. Nothing was lost (--mixed keeps the tree). Recovered by resetting to the v1.7.0 tag, re-committing v1.7.1 with only my five files (SPEC.md left untouched, foreign content preserved uncommitted for its owner), pushing via SSH, and manually syncing the tracking ref. This is the feedback_worktree_for_parallel_git lesson realized — I worked in the shared checkout rather than an isolated worktree; the SPEC collision is exactly what that rule guards against.

Arc 6 — Close-out

Verified the cloud resources + least-privilege. Updated project_patchwatch_strategy memory (Phase 1 LIVE). Deliberately did NOT edit the ohm-rfc ROADMAP #43 row — that checkout is parked on another session's roadmap/43-patchwatch branch, and after the SPEC collision the disciplined call was to leave it untouched and flag the annotation in the handoff.

Cut state (end of session)

Repo / resource	State
flotilla `main`	`5cf5ecd` (Merge v1.7.1); tags `v1.7.0`, `v1.7.1` pushed
flotilla working tree	ONE uncommitted change: a parallel session's `SPEC.md` §19.2 "preview environments" addition (~80 lines at line 1501) — left for its owner
Cloud Run job	`patchwatch-radar` (us-central1), SA `patchwatch-runner@`, image `…/patchwatch/radar:1.7.0`, `--max-retries 0`, env `PATCHWATCH_FAIL_ON_LANE=fast,mitigation`
Cloud Scheduler	`patchwatch-radar-6h`, `0 /6 * *`, ENABLED
Runner SA	`patchwatch-runner@wiggleverse-ohm` — ZERO project roles; `secretAccessor` on `ohm-rfc-app-gitea-read-token` + `run.invoker` on the job
Monitoring	email channel → ben@wiggleverse.org; alert policy "Patchwatch radar job failure (OHM)" (open incident: the tqdm fast finding)
OHM live	untouched (read-only session; no rfc-app deploy)
ohm-rfc	untouched; checkout parked on `roadmap/43-patchwatch` (clean)

#43 Patchwatch ledger	Status
Phase 1 — radar read-only + alert	✅ detection logic (≤0052) + always-on cloud runner (this session)
Phase 2 — OS layer (`unattended-upgrades` + reboot handling)	⏸ unblocked, not started
Phase 3 — mitigation lane (rfc-app kill-switches)	⏸ needs rfc-app coordination
Phase 5 — tiered auto-initiate	⛔ depends on Track Δ existing

§19.2 candidates surfaced

flotilla-core extraction — unchanged from the proposal; the cloud runner is the first piece of flotilla that runs off-laptop. The runner image
- entrypoint + provisioning script are OHM-specific glue today; the generic radar/classifier belongs in flotilla-core when a second product needs it.
Alert de-duplication / acknowledgement. The runner pages on every open fast/mitigation finding; while a known finding is blocked (tqdm on Track Δ), Monitoring's incident grouping mutes the spam, but there's no first-class "acknowledge this finding until version X" affordance. Worth it once there are several standing findings.

What lands on the operator's plate

The parallel-session SPEC.md change is sitting uncommitted in the flotilla working tree (a §19.2 "preview environments" candidate). It's not mine — its owning session (or you) should commit or discard it. I left it exactly as found.
ohm-rfc ROADMAP #43 wants a "Phase 1 + cloud runner DONE (flotilla v1.7.0/v1.7.1)" annotation. I didn't touch ohm-rfc (parked on another session's branch). Apply it on whichever branch owns #43.
Recurring alert decision. The radar will keep an open Monitoring incident while the tqdm fast bump is blocked on Track Δ. If the email is unwelcome, redeploy the job with PATCHWATCH_FAIL_ON_LANE=mitigation (the fast finding stays visible in the JSON logs). No action strictly required.
Optional: re-auth ADC (gcloud auth application-default login) if you want to run flotilla audit from the laptop again — the cloud runner doesn't need it (it uses its SA).

Prompt the operator can paste into the next Claude Code session

You are picking up after session 0053. Reserve your own session ID via
claim-session-id.sh before any work.

STATE (all pushed):
- flotilla main = 5cf5ecd (v1.7.1). Tags v1.7.0 + v1.7.1 pushed.
- Patchwatch Phase 1 cloud runner is LIVE in wiggleverse-ohm and verified
  end-to-end: Cloud Scheduler `patchwatch-radar-6h` (every 6h) → Cloud Run job
  `patchwatch-radar` runs `flotilla audit ohm-rfc-app --layer py-app --layer
  node-app --layer flotilla --fail-on-lane fast --fail-on-lane mitigation
  --fail-on-scanner-error --json`. Runtime SA `patchwatch-runner@` is
  least-privilege (secretAccessor on ohm-rfc-app-gitea-read-token + run.invoker
  on the job; zero project roles). Failures → email alert + JSON in Cloud
  Logging. v1.7.0 = the gates + image + script; v1.7.1 = provisioning-script
  fixes found live. Reprovision: scripts/patchwatch-runner-deploy.sh (idempotent;
  builds via LOCAL docker — the account lacks Cloud Build perms).
- The runner exits non-zero every cycle on the live tqdm HIGH fast finding
  (blocked on Track Δ); Monitoring groups it into ONE open incident. To mute:
  redeploy the job with PATCHWATCH_FAIL_ON_LANE=mitigation.

PLATE FROM 0053:
- flotilla working tree has ONE uncommitted change that is NOT 0053's: a
  parallel session's SPEC.md §19.2 "per-PR preview environments" addition
  (~line 1501). Leave it for its owner / commit-or-discard deliberately.
- ohm-rfc ROADMAP #43 wants a "Phase 1 + cloud runner DONE (v1.7.0/v1.7.1)"
  annotation; ohm-rfc is parked on branch roadmap/43-patchwatch.

NEXT MOVES (Patchwatch, all independent of the off-limits Phase 5 auto-initiate):
1. Phase 2 — OS layer: unattended-upgrades (security pocket) on the VM + the
   reboot-required the radar flags (linux-image). Touches the live VM (a reboot
   = brief ohm.wiggleverse.org outage — confirm timing with the operator).
2. tqdm fast-lane bump still owed but rides Track Δ (#37-#42); needs a fixed
   rfc-app tag first.
3. Phase 3 — mitigation lane: needs rfc-app kill-switch flags (framework
   coordination).

Run form (osv on PATH + pinned gcloud config; needs ADC re-auth for laptop runs):
  PATH="/opt/homebrew/bin:$PATH" CLOUDSDK_ACTIVE_CONFIG_NAME=wiggleverse \
    .venv/bin/ohm-rfc-app-flotilla audit ohm-rfc-app

LESSON: do hands-on git in an isolated worktree when other sessions may share
the checkout — 0053 hit a parallel-session SPEC.md collision in the shared tree.

Session close

Operator confirmed the wrap. Between the first publish (612b292) and this finalize, no repo or cloud changes were made — only the in-chat summary + handoff were delivered, and this closing note added. Everything in the cut-state table above holds: flotilla main = 5cf5ecd (v1.7.1), the runner is live and on its 6h schedule, and the three plate items remain for the next session.

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