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09-update-architecture.md: the update path finally has a document, and it is a living one
R-438's document half. It records how an update works AS MEASURED, quotes the
RestartStack comment that proves the restart half was CHOSEN (a design decision
is not a defect), carries the three operator rulings of 2026-09-02, strikes the
word 'rollback' (once a migration has run the old image will not start), states
the target shape, and lists the seven slices with a status each.

R-438 and R-440 amended and BOTH STAY OPEN: the mechanism is documented, not
changed. Nothing closed, so CLOSED-ITEMS.md is untouched.

Eight new register rows, 194 -> 202: R-446 (Naprakesz can be false for the 23
floating pins), R-447..R-451 (one per remaining slice, with a rank and an owner),
R-452 (no gate enforces catalog_since - the runner fetches at --depth 1), and
R-453 (the vaulted dashboard password is stale on BOTH demo boxes, which is what
stopped the badge render from being validated live).

Live evidence for slices 1 and 2 in documentation/tests/. The record is PROVEN
LIVE through the boot reconciler on demo-hp - one entry per compose service,
digests matching ground truth read independently. The badge RENDER is not, and
the five attempts are listed rather than summarised.
2026-09-02 20:32:30 +02:00

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# REPORT — update arc slices 1 & 2: documents, register, roadmap, capability map (2026-09-02)
*Overwritten each session. Nothing durable lives only here.*
## What this session changed in THIS repo
| file | change |
|---|---|
| **`documentation/architecture/09-update-architecture.md`** | **CREATED — the deliverable.** Its absence was R-438. A LIVING document: every slice of this arc updates it in the same session. |
| `documentation/tests/VALIDATION-update-slice12-2026-09-02.md` | CREATED — the live evidence, copied off demo-hp at the end of the phase that produced it. |
| `documentation/backlog/OPEN-ITEMS.md` | R-438 and R-440 amended (both stay OPEN); **8 new rows: R-446..R-453**. |
| `documentation/backlog/ROADMAP.md` | the update arc added as one item, naming the capability-map rows it flips. |
| `documentation/architecture/00-capability-map.md` | one new row: what version a box runs, and whether it is behind. |
| `STATUS.md` | one new operator item (9) and a new lead paragraph. |
## The architecture document — what it settles
1. **How an update works today, as measured** — `UpdateStack` is `pull` then `up -d --remove-orphans`;
the syncer overwrites a deployed app's compose on a 15-minute cycle with no deployed check;
**thirteen** non-API call sites end in `compose up -d`.
2. **What was chosen, and by whom** — `RestartStack`'s own comment, quoted. **A design decision is not
a defect.** What was never decided is what the syncer does underneath a deployed app.
3. **The three operator rulings of 2026-09-02** — verified backup as a precondition; the support window
runs on how far behind the CATALOG a box is; automatic within a major, never across one.
4. **The vocabulary ruling** — "rollback" is struck. The available shapes are ABORT and RESTORE.
5. **The target shape** — the live compose file becomes derived from a pin in `app.yaml`.
6. **The seven slices**, each with a status line. 1 and 2 are shipped.
7. **Known limitations**, including the floating-tag one.
## Register
**194 rows before, 202 after.** Nothing closed, and that is stated rather than implied: R-438 and
R-440 are **amended and stay OPEN** — the mechanism is now documented, not changed — so nothing moved
to `CLOSED-ITEMS.md` and that file is untouched.
| row | what | state |
|---|---|---|
| R-446 | „Naprakész" can be FALSE for the 23 floating pins | OPEN, P2-MEDIUM, CC |
| R-447 | slice 3 — make the live compose DERIVED | **BLOCKED** on an operator ruling, P1-HIGH |
| R-448 | slice 4 — a guarded update (subsumes R-443) | READY, P2-MEDIUM |
| R-449 | slice 5 — an upgrade test that runs again | READY, P2-MEDIUM |
| R-450 | slice 6 — version sequence; an engine change gets its own edge | READY, P2-MEDIUM |
| R-451 | slice 7 — a fleet sweep (needs a hub change: no image field is reported) | READY, P3-LOW |
| R-452 | no gate enforces `catalog_since` (`--depth 1` has no parent to diff) | READY, P3-LOW |
| R-453 | **the vaulted dashboard password is stale on BOTH demo boxes** | **WAITING-ON-OPERATOR**, P2-MEDIUM |
## Live validation
Full evidence: `documentation/tests/VALIDATION-update-slice12-2026-09-02.md`.
**PROVEN LIVE on demo-hp at controller 0.233.0**, through a real production caller (the boot
reconciler — no hand-set state): `bentopdf` recorded 1 service, `bookstack` recorded **2**, keyed by
compose service name, **all three digests matching ground truth read independently beforehand**.
Encrypted secrets byte-identical across the write. Both apps up and healthy; nothing provisioned.
**NOT live-validated: the rendered badge.** The vaulted dashboard password is stale on both demo
controllers (R-453) and there is no operator route to a customer's password. Five attempts are listed
in §4 of the validation file. The render is covered by tests that render the PRODUCTION templates.
## Sibling repos
- `felhom-controller` **v0.233.0** — `8025304acc0a`, deployed to demo-hp and verified healthy.
- `app-catalog-felhom.eu` — `69761cf91bfc` (backfill) + `8220f8d` (REPORT).