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Consolidate PR #50 as the opt-in Azure implementation; keep Event Grid in a following layer. Preserve conditional staged publication, source-pinned compose, signed reads and explicit identity modes. Tighten small-body length enforcement and loopback-only HTTP. Add StagedPublication TLC controls and witnesses; SDK unit tests passed. Live Azure/AKS remains unqualified.
This was referenced Sep 13, 2026
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Add an opt-in Azure Blob backend with streamed reads, bounded staged uploads, attempt-unique block IDs, conditional final commits and conditional source copies. Support refreshed Azure identity plus delegated read SAS/edge URLs; configured SAS does not gain delegation authority. Plain HTTP SAS endpoints are limited to loopback fixtures.
Consolidates #50 with exact small-body length enforcement and error redaction. Event notifications are a separate next layer. The Azure implementation and its tests are the largest layer in this stack.
Validation: Azure unit tests and strict Clippy pass locally. Isolated Azurite under Podman passed the storage contract and real Git push/clone/pull/cold-restart byte checks. Azure-only feature compilation passes. CI adds the emulator contract and Git smoke job. StagedPublication adds a fixed safety arm, three exact mutations and three reachability witnesses, mapped to Rust regressions. Live Azure/AKS and production-scale behavior remain unqualified.
Stack layer 7/8; base: backlog/06-dev-setup. Review the diff against this base. Combined tree at 4475bb4 passes local
just ci(38 e2e tests, 19 serial simulations and standalone smoke) and the real two-instance S3 push/maintenance/clone/fsck rig. All six ignored stress/benchmark tests and all 184 full TLC checks pass locally (15 new checks across two models). The follow-up at 37bc4cc changes only two shell test assertions to Bash builtins; it passes with a minimal PATH. All eight stack heads are green in hosted CI (26 jobs). This layer’s successful run.Review order: 01-conditional-storage → 02-s3-credentials → 03-lfs-batches → 04-lfs-metrics → 05-auth-boundaries → 06-dev-setup → 07-azure → 08-azure-events.