112 lines
6.2 KiB
Markdown
112 lines
6.2 KiB
Markdown
# REVIEW — phase `samever` (Adversary writes here)
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**Phase:** samever — step back to older base when canonical == head version (no same-version upgrade)
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**SSOT:** `/srv/cc-ci/cc-ci-plan/plan-phase-samever-older-base-fallback.md`
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**Adversary loop started:** 2026-06-17T04:09Z
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**Adversary clone:** /srv/cc-ci/cc-ci-adv
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---
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## Gate verdicts
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### M1: PASS @2026-06-17T04:27Z
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Cold-verified from own clone `/srv/cc-ci/cc-ci-adv` @ b29bb3f (claim c5a0d20). Implemented + unit-tested
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gate. Independent (not trusting Builder's tests) — re-ran the suite AND wrote my own break-it probes.
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**Evidence:**
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1. **Unit suite cold:** `pytest tests/unit/test_upgrade_base.py -v` → **13 passed** (8 prior unchanged
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+ 5 new). The 8 prior (override / EXPECTED_NA / main-tip / head==main-tip skip / no-predecessor /
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other-rung) still green ⇒ override/ref/skip paths untouched.
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2. **My own primitive probes** (direct import, adversarial inputs):
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- `newest_older_version` strictly-older semantics: suffix tags (`-rootless`) ordered correctly;
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head-version BETWEEN tags → newest strictly older; **equal-key tag EXCLUDED** (1.0.0+3.5.3 vs
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1.0.0+3.5.3 → None); head-is-oldest → None; None/empty safe; recipe-major ordering beats app
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(9.9.9+99.0.0 < 10.0.0+1.0.0). ✓
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- `_VERSION_LABEL_RE`: parses quoted, unquoted, single-quoted labels; **`.chaos-version` → None**
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(not matched); chaos-then-real picks the real label. ✓
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3. **My own resolver-chain probes** (monkeypatched canonical + recipe_tags, direct `resolve_upgrade_base`):
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- **canonical==head (TEETH):** `10.8.0+26.6.3` → base `10.7.1+26.6.2`, `kind=version`,
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`reason="step-back: …"`; asserted `version != head` AND `version_key(base) < version_key(head)`.
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**Never a same-version no-op; strictly older.** ✓
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- **canonical≠head (version-bump path):** uses canonical unchanged AND `recipe_tags` is NOT consulted
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(patched it to raise — no raise) ⇒ discourse #4 / version-bump PRs cannot be perturbed by this gate. ✓
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- **canonical==head, no older tag:** `kind=skip`, reason `"base == head (…) and no older published
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predecessor"` ⇒ declared, not silent. ✓
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- **head_version=None (compose unreadable):** canonical stays primary (prevb behavior preserved). ✓
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4. **sort_versions refactor behavior-preserving:** `version_key` lifted verbatim from the old inline
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key; `test_warm_reconcile.py` version-ordering tests pass (8 passed; single failure unrelated).
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5. **Pre-existing failures disclosed honestly:** `test_meta::test_generated_doc_table_in_sync` and
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`test_warm_reconcile::test_traefik_spec_is_stateless_with_setup` FAIL on **parent 279d84d** too
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(re-ran in a temp worktree — both fail there); samever diff touches neither SPECS nor the doc table.
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Out of scope, NOT a regression.
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**F1d-2:** step-back returns `kind="version"` ⇒ inherits the same pinned-tag deploy path as any
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canonical base (no new deploy code) — the on-disk tree is checked out at the pinned older tag. This is
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an M1 (unit) claim; the REAL pinned-deploy proof belongs to **M2** (live CI, evidenced base<head delta).
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Verdict: **M1 PASS.** Implementation matches plan §2 chain exactly; teeth hold; no regression to
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override/ref/skip/version-bump paths. (Consulted JOURNAL only after writing this — did not need it.)
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---
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## Orientation @2026-06-17T04:09Z
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Phase `samever` plan created 2026-06-17T03:56Z. Builder has not yet started (no STATUS-samever.md).
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**Root cause confirmed (cold-read of resolver, lines 133–148 of run_recipe_ci.py):**
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```python
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rec = canonical.read_registry(recipe)
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if rec and rec.get("version"):
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return BasePlan(
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"version",
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rec["version"],
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None,
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f"last-green (warm canonical, status={rec.get('status')})",
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)
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```
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The warm-canonical path returns `canonical["version"]` WITHOUT checking if it equals the head version.
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The resolver is not passed the head's semantic version (only `head_ref`, a commit sha), so it cannot compare.
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**Current unit tests (8 tests in tests/unit/test_upgrade_base.py) — none cover canonical==head:**
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- test_upgrade_not_in_stages_skip
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- test_expected_na_upgrade_skip_even_with_canonical_and_override
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- test_explicit_override_wins_over_canonical
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- test_last_green_warm_canonical_is_primary ← uses canonical["version"]="0.6.0+3.1.1", HEAD="aaaa1111head" (different version — correct but doesn't test the same-version edge)
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- test_main_tip_fallback_when_no_last_green
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- test_head_equals_main_tip_skip
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- test_no_canonical_no_main_skip
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- test_expected_na_other_rung_does_not_suppress_upgrade
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**Key utilities available for the fix:**
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- `warm_reconcile.recipe_tags(recipe)` — returns all git tags from recipe clone
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- `warm_reconcile.sort_versions(tags)` — ascending sort of version tags (coop-cloud semver)
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- `warm_reconcile.latest_version(tags)` — the newest tag
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- Head version read from compose.yml: `coop-cloud.${STACK_NAME}.version` label at `abra.recipe_dir(recipe)/compose.yml` (head checkout already at that path when resolver runs)
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**M1 verification plan (what I'll cold-verify when claimed):**
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1. Resolver reads head version from compose.yml (inspect the parsing — look for compose YAML read + `coop-cloud.*version` label extraction)
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2. New chain: override → (canonical if canonical≠head_version) → (newest older published if canonical==head_version) → main-tip → skip
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3. Unit tests added: at minimum canonical==head→step_back, canonical≠head→unchanged, no_older_published→skip, version ordering correct
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4. Run `python -m pytest tests/unit/test_upgrade_base.py -v` cold from own clone
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5. Confirm OVERRIDE, EXPECTED_NA, main-tip, skip paths are untouched (regression: existing 8 tests still pass)
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6. Teeth check: a "broken base" scenario should still fail (unit test or from plan F1d-2 evidence)
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**M2 verification plan:**
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1. Cold-on-latest run on an enrolled recipe whose canonical == latest (seed the canonical to latest, then trigger cold run)
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2. Evidence in logs: `base_version < head_version` (not a no-op, not a skip)
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3. Re-run discourse #4 or equivalent version-bump PR → UNAFFECTED (canonical→head path still uses canonical)
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4. Spot-check ≥1 other recipe
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---
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## Adversary findings
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(empty — phase not yet started)
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---
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## Break-it probes log
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(none yet)
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