box/drills/README.md
dan-claude-bot f63fa952d4 refactor: one drill record per version, in drills/
Drill records move from sections inside drill/RUNS.md to one file per
version: drills/<version>.md. drill/RUNS.md is untouched — it stays the
harness's own run log, traps table and lore. drills/ is release evidence
only, and the docs now say which is which.

The old guard parsed headings: em-dash field matching, an optional
' — DATE' tail, whole-version comparison so 0.9.0-rc1 could not satisfy
0.9.0, avoiding \x escapes because CI runs mawk not gawk, and a non-blank
body rule. Every one of those existed only because records shared one
file, and two separate defects were found in review because of that
complexity — the sed '/./,$!d' whitespace bypass, and heading-grammar
drift from the sibling repos.

One file per version makes almost all of it unrepresentable: 0.9.0.md and
0.9.0-rc1.md are simply different files, so whole-version matching is
free rather than a trap. The guard keeps only the rule that was never
about headings — a record of pure whitespace is not a record — and keeps
the failure message that names the version, the path, the unblock, and
the recorded-waiver escape hatch.

Plain drills/, not .drills/ — a dot-directory is invisible to globs
without dotglob, which is what caused #116 and #118.

Also corrects the release-drill framing: the three repos' drills are
INDEPENDENT and run in any order. What dissolves the box<->rig recursion
is that every drill pins the same fixed candidate refs, not sequencing.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-21 16:35:28 +00:00

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3.4 KiB
Markdown

# drills/ — release evidence, one file per version
This directory holds the **evidence that a release was proven on real
hardware**. One file per shipped version, named exactly for the version:
```
drills/0.9.0.md
drills/0.9.0-rc1.md
```
The name must match the contents of `VERSION` exactly.
[.github/scripts/drill-recorded.sh](../.github/scripts/drill-recorded.sh)
refuses any tree with a bare `VERSION` that has no such file, or whose file is
blank. A `-dev` tree passes with nothing to assert.
Because each version owns a file, `0.9.0` and `0.9.0-rc1` can never be
confused for one another — they are simply different paths. That used to take
careful whole-version field matching inside one shared file; now it is free.
## This is not `drill/RUNS.md`
Two different artifacts, and the distinction is load-bearing:
| | what it is |
|---|---|
| [`drill/RUNS.md`](../drill/RUNS.md) | the **harness's own history** — every run of `drill/drill.sh`, the traps table, the lore about what broke and why. It is not release-scoped and it is not going anywhere. |
| `drills/<version>.md` | **release evidence** — the record that *this version* was drilled before it shipped. Release-scoped, one file, gated by CI. |
Appending to `drill/RUNS.md` does not satisfy the release gate, and is not
meant to. Keep using it for what it has always been for.
## What a record should contain
- **What ran** — which drill, how many probes, `drill/drill.sh` invocation.
- **On what host** — the machine, the OS, the Incus version. "Real hardware"
is the claim; name the hardware.
- **The pinned candidate refs** — the exact `BOX_REF` / `RIG_REF` /
`CAST_REF` under test, and the other repos' commit SHAs. A drill that does
not say what it drilled proves nothing later.
- **The shared run ID**, so this record reconciles with the sibling repos'.
- **The numbers** — passed, failed, how long it took.
- **What failed**, plainly.
**A failed drill is still a valid record.** The gate wants *evidence*, not
success. A record saying "83/85, criterion (m) regressed, here is the issue"
is a good record. So is a maintainer's written waiver explaining why this
release shipped without a full drill. What the gate refuses is silence — #95,
#114 and #148 all shipped unproven because a skip left no trace.
## Worked example
The version below is a **placeholder that can never be a real release**.
Copy the shape, not the number.
```markdown
# Release drill — 9.9.9
- **Run ID:** `drill-9.9.9-20260721-01` (shared with rig, cast)
- **Host:** bare Debian 13, Ryzen 7 5800X / 64 GB, Incus 6.0.2
- **Date:** 2026-07-21
- **Candidate refs:**
- box `release/9.9.9` @ `abc1234`
- rig `release/4.4.4` @ `def5678` (minted with `RIG_REF=release/4.4.4`)
- cast `release/2.2.2` @ `9abcdef`
## What ran
`bash drill/drill.sh --ref release/9.9.9` — the full end-to-end: install the
stack, mint every template cold, snapshot and restore, uninstall to zero
residue. Then `drill/multiuser.sh` for the two-user grant matrix.
## Result
**84/85 passed, 1 failed.** 41 minutes wall clock.
- Failed: `multiuser.sh` criterion (m) — the raw instance kept a stale route
after teardown. Filed as #999. Judged not release-blocking: it affects
teardown residue on a host that is about to be wiped, not the trust
boundary itself.
- The VM boundary probes (the 85-probe isolation contract) passed clean,
which is the assertion this repo's drill exists to make.
```