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test(e2e): add the outbound target matrix and #7082 postmortem (#7092)

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test(e2e): add the outbound target matrix and the replication checksum postmortem

Defense work for rustfs#7082, the regression rustfs#6895 introduced while
fixing rustfs#6853: a fix for one target class changed a client default for
every target class and nothing in tree modeled the other classes.

- docs/postmortems: timeline, root cause, why four defense layers missed
  it, and the SOP for changing any outbound client default; AGENTS.md and
  the adversarial compatibility lens point at it; the two env knobs from
  rustfs#6895 are documented in docs/operations.
- fake_s3_target: reject_aws_chunked_uploads, require_checksum_for_object_lock
  (Content-MD5 always verified), create_bucket_with_object_lock with a
  GetObjectLockConfiguration handler, and a TransportSnapshot on every
  journal record.
- replication_target_matrix_test: six object shapes against four target
  modes with an explicit expectation table; the two rustfs#7082 cells are
  pinned KnownFailing and fail with an XPASS message once the fix lands.
  Wired into e2e-repl-nightly, excluded from e2e-full.
This commit is contained in:
唐小鸭
2026-09-03 14:57:05 +08:00
committed by GitHub
parent 54a7e9f307
commit 8023cf3e26
16 changed files with 1036 additions and 25 deletions
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AGENTS.md
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@@ -162,6 +162,12 @@ Risk and review shape:
S3-visible semantics. Cover all applicable lenses using exactly two
independent reviewers when delegation is explicitly authorized. Split the
lenses between them. Otherwise perform two fresh sequential passes.
- **Outbound client defaults:** what `TargetClient`, `PutObjectOptions`, or
the remote SDK configuration sends to every replication or migration target
is high risk for every target class even when the change fixes one. Follow
the SOP in `docs/postmortems/2026-09-03-replication-checksum-default-regression.md`:
run the outbound target matrix, document each new env knob in the same PR,
and list verified and unverified target classes in the PR Impact section.
Available domain lenses are security, concurrency/durability, compatibility,
and performance. Select `.agents/skills/adversarial-validation/SKILL.md` for an