session-history/engineering/0017/SESSION-0017.0-TRANSCRIPT-2026-06-10T21-33--INPROGRESS.md

Session 0017.0 — Transcript

App: engineering Start: 2026-06-10T21-33 (PST) Type: planning-and-executing Claude-Session: bd35ac2f-4cc2-43e5-95e1-69ed72d8f71b Status: PLACEHOLDER — claimed at session start; finalized at session end.

This file reserves session ID 0017 for engineering. The driver replaces this body with the full transcript and renames the file to its final SESSION-0017.0-TRANSCRIPT-2026-06-10T21-33--.md form at session end.

Launch prompt

Build gitea-forge-backups SLICE-2 — scheduled gitea dump every 4 hours (operator override of the spec's 8h) on the VM uploading to gs://wiggleverse-gitea-backups (pure-create upload path, not gsutil cp), per specs/gitea-forge-backups.md §7.2 (engineering#30).

Plan

Anchor: design specs/gitea-forge-backups.md (engineering#30, graduated; SLICE-2, §7.2)

Implementation plan: plans/2026-06-10-gitea-backups-slice-2.md (authored this session). Headline: infra/gitea-backup/ gains gitea-backup.sh + gitea-backup.{service,timer} (every 4 h — operator override of Q2's 8 h, this session); script runs gitea dump read-only in the container, unzip -t

• sha256, pure-create JSON-API upload (objectCreator can't objects.list, so no gsutil), success marker markers/last-success.json, staging cleanup, one retry. Gate: T-1 against scratch gitea container + scratch bucket (wiggleverse-gitea-backups-scratch) BEFORE enabling live (spec §6.8). Then enable timer on the forge, first live run verified, docs (runbook build state, spec interval amendment) → PR → merge.

Session runs isolated in worktree gitea-backups-slice-2 (live concurrent SESSION-0009 in flight).

Execution record (checkpoint, ~21:50 PST)

• Repo artifacts (PR #42, merged): infra/gitea-backup/gitea-backup.sh + gitea-backup.{service,timer}; spec v0.2.1 (Q2 amended 8h→4h, §6.4/§6.5 pure-create wording); runbook Backups build-state + operating verbs; plan archived in-repo at plans/2026-06-10-gitea-backups-slice-2.md.
• Scratch gate (T-1, spec §6.8): scratch bucket gs://wiggleverse-gitea-backups-scratch (objectCreator for the VM SA; kept for SLICE-3's T-4) + throwaway gitea-scratch container on the VM (torn down after). Two real bugs caught and fixed before live:
  1. staging dir must be created in-container and chowned to git (root host-mkdir → dump can't write; then /data is root-owned so git can't mkdir either);
  2. fresh scratch gitea lacks /data/git/repositories (env setup, not a script bug). T-1 verification independent from the laptop: download, unzip -t intact, sha256 == marker's (30f85305…), marker JSON complete.
• Live enable: units installed, timer enabled. First live run caught bug 3: curl --data-binary buffers the archive in RAM → OOM on the e2-small with the real 1.02 GiB dump (scratch was 66 KB — scale fidelity gap in the scratch gate, noted). Fixed with streaming -T; re-run green: gitea-dump-20260611T044540Z.zip (1,097,287,374 B) + fresh marker in gs://wiggleverse-gitea-backups, Result=success, next timer firing 2026-06-11 08:15 UTC on the 4h grid (00/4:15, Persistent).
• SLICE-2 DoD: snapshot landed + verified, timer enabled + idempotent + read-only (INV-7); "on schedule" firing observable at 08:15 UTC (timer verified armed; first run was the manual trigger per plan).

Deferred decisions

• Tightened the spec's resolved Q2 (8h) to 4h on the operator's one-line instruction ("SLICE-2 but make it every 4 hours") and amended the spec (v0.2.1) rather than re-opening Q2 — confident this is what was meant; flagging only because it edits a resolved decision row.
• Kept the scratch bucket (…-backups-scratch, empty but for one 66 KB test object) instead of deleting it — SLICE-3's T-4 retention test reuses it.

Autonomous-mode low-confidence calls the driver made and would have liked operator input on. Appended as the session runs; surfaced at finalize. Empty if none.