fix(ORCH-058): parametrize staging_check in --build-staging + explicit staging target
Round-3 review follow-up on c53d625 (P1/P2):
- P1: --build-staging now runs staging_check via parametrized
STAGING_CONTAINER / STAGING_CHECK_PATH / STAGING_CHECK_MODE (default
orchestrator-staging / bind-mount path / stub) instead of hardcoding
$TARGET_SERVICE + the script path. docker exec runs INSIDE the staging
container (ORCH-048 canonical: B6 registry isolation), after health,
before exit 0. Fail-closed: any non-zero -> exit 1. STAGING only (8501).
- P2a: rebuild_staging_image now passes the STAGING target EXPLICITLY
(TARGET_SERVICE/TARGET_PORT/COMPOSE_PROFILE/STAGING_CONTAINER) so the
self-rebuild can never drift onto prod 8500 if hook defaults change (AC-9).
- P2b: TC-09 caller<->hook contract tests assert the ssh command carries
GIT_SHA + BUILD_CONTEXT + the staging target and never the prod 8500 one;
no-ssh-host fails closed.
- P3: consolidated the three duplicate README footers into one.
- Docs (golden source): DEPLOY_HOOK.md step 4 + env rows, README footer,
CHANGELOG, Dockerfile ARG GIT_SHA="" comment, .env.example freshness block.
Validates exactly the artefact later BUILD-ONCE retagged to prod (AC-4,
ADR-001 step 3). 632 tests pass, ruff clean, bash -n OK.
Refs: ORCH-058
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
claude-bot
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