280 lines
15 KiB
Markdown
280 lines
15 KiB
Markdown
# Session 0053.0 — Transcript
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> Date: 2026-05-31 → 2026-06-01
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> Goal: Build the **Patchwatch Phase 1 cloud runner** (ohm-rfc ROADMAP #43,
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> proposal §6) — the always-on, read-only incarnation of `flotilla audit` as a
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> scheduled Cloud Run job that alerts on fast/mitigation findings.
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>
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> Outcome: **Shipped flotilla v1.7.0 (cloud-runner code + image + provisioning)
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> and v1.7.1 (provisioning-script fixes found live). The runner is fully
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> provisioned in `wiggleverse-ohm` and verified end-to-end: a scheduler-triggered
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> Cloud Run execution resolved the private pin 0.31.3, scanned all three
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> network-readable layers with zero scanner_errors, and exited non-zero on the
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> live tqdm fast-lane finding (the intended alert).**
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>
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> Highlights / surprises:
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> - Two real bugs surfaced by the first-ever wheel install of flotilla (the
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> runner image): a transient Secret Manager failure crashed the whole audit
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> instead of degrading; `__version__` couldn't resolve in site-packages.
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> - A parallel session's in-progress `SPEC.md` edit landed in the shared
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> checkout mid-session and got swept into a commit — caught before push,
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> un-committed, left intact for its owner (the worktree-isolation lesson,
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> realized: see [[feedback_worktree_for_parallel_git]]).
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---
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## Plan
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- [x] **Slice 1 — `flotilla audit` cloud-runner readiness (v1.7.0).** `--layer`
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repeatable; `--fail-on-lane` (lane-based exit gate); `--fail-on-scanner-error`
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(blind-radar gate). Tests + SPEC §12.4 + CHANGELOG + VERSION. Tag + push.
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- [x] **Slice 2 — runner container + provisioning artifacts.** `runner/Dockerfile`,
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`runner/entrypoint.sh`, `runner/cloudbuild.yaml`,
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`scripts/patchwatch-runner-deploy.sh`. Image builds + runs.
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- [x] **Slice 3 — provision GCP resources.** AR repo, least-privilege runtime SA,
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Cloud Run job, 6h Cloud Scheduler, Cloud Monitoring email alert. Verified.
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- [x] **Slice 4 — docs + transcript.**
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---
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## Pre-session state
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- flotilla `main` = `70ba3b0` (v1.6.0 — authenticated Gitea reads). Tags through
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v1.6.0 pushed. Working tree clean.
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- Patchwatch radar logic complete and live from the laptop (`flotilla audit`);
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session 0052 resolved the private-repo blocker with a dedicated read token
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(`wiggleverse-ohm/ohm-rfc-app-gitea-read-token`). `audit` ran clean (9
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findings, 0 scanner_errors).
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- The handoff offered three unblocked moves; the operator chose **#3, the cloud
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runner**, over the Phase 2 OS layer and a design-only pass (via AskUserQuestion).
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- The tqdm fast-lane bump (#1) stays blocked on Track Δ; the Phase 5
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auto-initiate tier was explicitly off-limits.
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---
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## Turn-by-turn arc
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### Arc 1 — Orient + scope the runner
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Read the audit module, registry/DB, secret resolution, and `register-ohm.sh`.
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Key findings that shaped the design:
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- `secrets.read_secret` uses ADC via the google client library → in Cloud Run
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the runtime SA's metadata creds resolve it; no gcloud CLI needed in the image
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for the three network-readable layers.
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- The deployment record lives in a local SQLite (`OHM_RFC_APP_FLOTILLA_DATA_DIR`).
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The container bootstraps an **ephemeral** record (non-secret §13 coordinates +
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the gitea-read **secret reference** — never the bytes; §3 invariant 1).
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- The `os` layer needs IAP-SSH, which a read-only runner identity deliberately
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lacks → the runner scans `py-app` + `node-app` + `flotilla` and omits `os`
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(OS visibility stays a laptop / Phase-2 concern). This matched the operator's
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mental model in the handoff ("Secret Manager access" only, no IAP).
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### Arc 2 — Slice 1: audit cloud-runner gates (v1.7.0)
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`--layer` made repeatable (`run_audit` already took a list). Added two
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lane/blindness-aware exit gates because the design's alerting is **lane**-based
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while the existing `--fail-on` is severity-based:
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- `--fail-on-lane fast|routine|mitigation` (repeatable) — catches a
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KEV-escalated sub-HIGH (`fast` at MEDIUM) that `--fail-on high` would miss.
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- `--fail-on-scanner-error` — a blind radar (revoked token / lost SM access)
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pages instead of silently reporting "all clear."
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Verifying the exact runner invocation locally surfaced the **first real bug**:
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the laptop's ADC had expired mid-session, and the resulting Secret Manager
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failure came back as a `RetryError` (retry budget exhausted) — which
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`secrets.read_secret` did NOT wrap, so it escaped as a raw google exception and
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**crashed the whole audit** instead of degrading to a `scanner_error`
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(violating §2 + the Phase-1 acceptance "degrade, don't crash"). Fixed by
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catching the common base `GoogleAPIError` (covers both `GoogleAPICallError` and
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`RetryError`) at the `read_secret` boundary. Re-ran: clean degrade — app layers
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recorded `scanner_error`, the `flotilla` layer still scanned. This is
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load-bearing for an unattended runner.
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### Arc 3 — Slice 2: container + provisioning artifacts
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`runner/Dockerfile` (osv-scanner binary copied from the pinned ghcr image +
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`pip install .`), `runner/entrypoint.sh` (ephemeral record bootstrap → audit),
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`runner/cloudbuild.yaml`, `scripts/patchwatch-runner-deploy.sh`.
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The container run surfaced the **second bug**: this was flotilla's first real
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**wheel** install, and `__version__` read VERSION via a repo-root-relative path
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that exists for source/editable runs but not in site-packages → the installed
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CLI crashed on import. Fixed to read the repo-root VERSION when present (live,
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for dev) and fall back to the installed distribution metadata.
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Re-ran the container: clean degrade (no GCP creds locally), the `flotilla` layer
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scanned via the in-container osv-scanner (4 findings), and `--fail-on-scanner-error`
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correctly exited non-zero on the blind app layers. Bumped VERSION/pyproject to
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1.7.0, wrote the CHANGELOG, committed on `release/v1.7.0`, merged `--no-ff` to
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`main`, tagged + pushed (via the SSH remote URL — the HTTPS origin's osxkeychain
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helper can't unlock non-interactively).
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### Arc 4 — Slice 3: provisioning (blocked on re-auth, then live)
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Both the gcloud account token AND ADC needed interactive re-auth (expired during
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the long session) — surfaced to the operator, who re-authed (`gcloud auth login`).
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Then ran `scripts/patchwatch-runner-deploy.sh`. Real-world friction, each fixed
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in-script (→ v1.7.1):
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1. `gcloud builds submit` → `PERMISSION_DENIED` (account lacks Cloud Build).
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Pivoted to a LOCAL `docker build --platform linux/amd64 --provenance=false` +
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push (the `--provenance=false` matters — a buildx attestation manifest list
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trips Cloud Run's single-image expectation), then `--skip-build`.
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2. `--set-env-vars PATCHWATCH_FAIL_ON_LANE=fast,mitigation` — the comma parsed
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as a second env-var pair; fixed with gcloud's `^@^` alternate-delimiter.
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3. SA-creation propagation lag (binding ran before the SA was visible) — the
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idempotent re-run cleared it.
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4. The `beta`/`alpha` gcloud components weren't installed (non-interactive
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prompt) — installed them.
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5. The monitoring channel-list filter rejected the unquoted email as ambiguous —
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quoted it.
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Set `--max-retries 0` (a `--fail-on` exit is deterministic; the 6h schedule is
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the retry cadence). Final idempotent re-run exited 0, no errors.
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**Verified end-to-end.** A manual execution produced a full JSON report:
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`pinned_version 0.31.3` (the SA resolved the private pin + lockfiles),
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`scanner_errors: []`, `lane_counts fast=1 routine=7 mitigation=0`, and
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`Container called exit(1)` — the live tqdm HIGH fast finding tripping
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`--fail-on-lane fast`. Triggering the **scheduler** manually created a fresh
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execution (proving the scheduler→job `run.invoker` auth path) that reached
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terminal `failedCount=1` — the full chain through to the alert policy.
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Least-privilege confirmed: the runner SA has **zero** project-wide roles, only
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`secretAccessor` on the one secret + `run.invoker` on the one job.
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### Arc 5 — Parallel-session SPEC collision (the wrong turn)
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Committing v1.7.1, `git add -A` swept in an ~80-line `SPEC.md` addition (a §19.2
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"per-PR preview environments" candidate) that a **parallel session** had written
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into the shared checkout — not my work. Traced it (absent in v1.6.0 and my
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v1.7.0 commit; present only in the working tree). A `git reset` then compounded
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it: I reset to the stale remote-tracking ref `origin/main` (still at 70ba3b0,
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because I'd pushed via the explicit SSH URL, which doesn't advance the tracking
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ref) and rewound past v1.7.0 too. Nothing was lost (`--mixed` keeps the tree).
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Recovered by resetting to the `v1.7.0` tag, re-committing v1.7.1 with **only my
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five files** (SPEC.md left untouched, foreign content preserved uncommitted for
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its owner), pushing via SSH, and manually syncing the tracking ref. This is the
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[[feedback_worktree_for_parallel_git]] lesson realized — I worked in the shared
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checkout rather than an isolated worktree; the SPEC collision is exactly what
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that rule guards against.
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### Arc 6 — Close-out
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Verified the cloud resources + least-privilege. Updated
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[[project_patchwatch_strategy]] memory (Phase 1 LIVE). Deliberately did NOT edit
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the ohm-rfc ROADMAP #43 row — that checkout is parked on another session's
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`roadmap/43-patchwatch` branch, and after the SPEC collision the disciplined
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call was to leave it untouched and flag the annotation in the handoff.
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---
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## Cut state (end of session)
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| Repo / resource | State |
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| --- | --- |
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| flotilla `main` | `5cf5ecd` (Merge v1.7.1); tags `v1.7.0`, `v1.7.1` pushed |
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| 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 |
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| 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` |
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| Cloud Scheduler | `patchwatch-radar-6h`, `0 */6 * * *`, ENABLED |
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| Runner SA | `patchwatch-runner@wiggleverse-ohm` — ZERO project roles; `secretAccessor` on `ohm-rfc-app-gitea-read-token` + `run.invoker` on the job |
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| Monitoring | email channel → ben@wiggleverse.org; alert policy "Patchwatch radar job failure (OHM)" (open incident: the tqdm fast finding) |
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| OHM live | untouched (read-only session; no rfc-app deploy) |
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| ohm-rfc | untouched; checkout parked on `roadmap/43-patchwatch` (clean) |
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| #43 Patchwatch ledger | Status |
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| --- | --- |
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| Phase 1 — radar read-only + alert | ✅ detection logic (≤0052) + **always-on cloud runner (this session)** |
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| Phase 2 — OS layer (`unattended-upgrades` + reboot handling) | ⏸ unblocked, not started |
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| Phase 3 — mitigation lane (rfc-app kill-switches) | ⏸ needs rfc-app coordination |
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| Phase 5 — tiered auto-initiate | ⛔ depends on Track Δ existing |
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---
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## §19.2 candidates surfaced
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1. **`flotilla-core` extraction** — unchanged from the proposal; the cloud
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runner is the first piece of flotilla that runs off-laptop. The runner image
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+ entrypoint + provisioning script are OHM-specific glue today; the generic
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radar/classifier belongs in `flotilla-core` when a second product needs it.
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2. **Alert de-duplication / acknowledgement.** The runner pages on every open
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fast/mitigation finding; while a known finding is blocked (tqdm on Track Δ),
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Monitoring's incident grouping mutes the spam, but there's no first-class
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"acknowledge this finding until version X" affordance. Worth it once there
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are several standing findings.
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---
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## What lands on the operator's plate
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1. **The parallel-session `SPEC.md` change** is sitting uncommitted in the
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flotilla working tree (a §19.2 "preview environments" candidate). It's not
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mine — its owning session (or you) should commit or discard it. I left it
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exactly as found.
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2. **ohm-rfc ROADMAP #43** wants a "Phase 1 + cloud runner DONE (flotilla
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v1.7.0/v1.7.1)" annotation. I didn't touch ohm-rfc (parked on another
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session's branch). Apply it on whichever branch owns #43.
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3. **Recurring alert decision.** The radar will keep an open Monitoring incident
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while the tqdm fast bump is blocked on Track Δ. If the email is unwelcome,
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redeploy the job with `PATCHWATCH_FAIL_ON_LANE=mitigation` (the fast finding
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stays visible in the JSON logs). No action strictly required.
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4. **Optional:** re-auth ADC (`gcloud auth application-default login`) if you
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want to run `flotilla audit` from the laptop again — the cloud runner doesn't
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need it (it uses its SA).
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---
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## Prompt the operator can paste into the next Claude Code session
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```
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You are picking up after session 0053. Reserve your own session ID via
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claim-session-id.sh before any work.
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STATE (all pushed):
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- flotilla main = 5cf5ecd (v1.7.1). Tags v1.7.0 + v1.7.1 pushed.
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- Patchwatch Phase 1 cloud runner is LIVE in wiggleverse-ohm and verified
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end-to-end: Cloud Scheduler `patchwatch-radar-6h` (every 6h) → Cloud Run job
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`patchwatch-radar` runs `flotilla audit ohm-rfc-app --layer py-app --layer
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node-app --layer flotilla --fail-on-lane fast --fail-on-lane mitigation
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--fail-on-scanner-error --json`. Runtime SA `patchwatch-runner@` is
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least-privilege (secretAccessor on ohm-rfc-app-gitea-read-token + run.invoker
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on the job; zero project roles). Failures → email alert + JSON in Cloud
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Logging. v1.7.0 = the gates + image + script; v1.7.1 = provisioning-script
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fixes found live. Reprovision: scripts/patchwatch-runner-deploy.sh (idempotent;
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builds via LOCAL docker — the account lacks Cloud Build perms).
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- The runner exits non-zero every cycle on the live tqdm HIGH fast finding
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(blocked on Track Δ); Monitoring groups it into ONE open incident. To mute:
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redeploy the job with PATCHWATCH_FAIL_ON_LANE=mitigation.
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PLATE FROM 0053:
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- flotilla working tree has ONE uncommitted change that is NOT 0053's: a
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parallel session's SPEC.md §19.2 "per-PR preview environments" addition
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(~line 1501). Leave it for its owner / commit-or-discard deliberately.
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- ohm-rfc ROADMAP #43 wants a "Phase 1 + cloud runner DONE (v1.7.0/v1.7.1)"
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annotation; ohm-rfc is parked on branch roadmap/43-patchwatch.
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NEXT MOVES (Patchwatch, all independent of the off-limits Phase 5 auto-initiate):
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1. Phase 2 — OS layer: unattended-upgrades (security pocket) on the VM + the
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reboot-required the radar flags (linux-image). Touches the live VM (a reboot
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= brief ohm.wiggleverse.org outage — confirm timing with the operator).
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2. tqdm fast-lane bump still owed but rides Track Δ (#37-#42); needs a fixed
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rfc-app tag first.
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3. Phase 3 — mitigation lane: needs rfc-app kill-switch flags (framework
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coordination).
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Run form (osv on PATH + pinned gcloud config; needs ADC re-auth for laptop runs):
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PATH="/opt/homebrew/bin:$PATH" CLOUDSDK_ACTIVE_CONFIG_NAME=wiggleverse \
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.venv/bin/ohm-rfc-app-flotilla audit ohm-rfc-app
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LESSON: do hands-on git in an isolated worktree when other sessions may share
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the checkout — 0053 hit a parallel-session SPEC.md collision in the shared tree.
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```
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---
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## Session close
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Operator confirmed the wrap. Between the first publish (`612b292`) and this
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finalize, no repo or cloud changes were made — only the in-chat summary +
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handoff were delivered, and this closing note added. Everything in the cut-state
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table above holds: flotilla `main` = `5cf5ecd` (v1.7.1), the runner is live and
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on its 6h schedule, and the three plate items remain for the next session.
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