http_fetch raced the serving layer right after backup-bot cycled the app container (served '' for a
moment). Backup/restore preserve the VOLUME, so read the marker in-container via exec_in_app — correct
and race-free. Serving is proven separately by install/upgrade assert_serving.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- deploy_app: checkout the pinned tag + deploy NON-chaos when a version is pinned (chaos only for
version=None / PR-head). Was always -C, which ignored the pin and deployed LATEST -> upgrade no-op.
- do_upgrade: assert the deployment actually MOVED (coop-cloud version label and/or image changed)
via lifecycle.deployed_identity -> a vacuous no-op upgrade can no longer pass (DG2).
- G2: migrate custom-html overlays to the assertion-only contract (override + extend-by-composition
+ data-continuity; split backup/restore). tests/unit/test_discovery.py proves precedence (5/5).
Probe (Adversary's F1d-2 test): hedgedoc deploy-prev=1.10.7 -> upgrade=1.10.8, CHANGED=True.
hedgedoc full generic lifecycle green (install/upgrade/backup/restore, deploy-count=1).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
