E2E tests for R2/S3 bucket flows and Rust→Swift fleet upgrade#153
E2E tests for R2/S3 bucket flows and Rust→Swift fleet upgrade#153ethenotethan wants to merge 40 commits into
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LocalStack (v3, community edition) replaces R2/CDN for E2E testing of provider self-update and model weight download flows. Three new tests: - TestIntegration_ReleaseRegistration: registers a release, downloads the bundle from LocalStack, verifies SHA-256 hash and tarball contents - TestIntegration_SelfUpdateCheck: builds Swift provider, runs `darkbloom update --check-only` against testbed coordinator with a v99.0.0 release registered, asserts update detection output - TestIntegration_ModelWeightDownload: seeds LocalStack with model files, runs `darkbloom models download` via the Swift provider, asserts files land in HF cache with correct content and refs/main Suite gains LocalStack lifecycle (Docker container + S3 bucket client), R2CDNURL wiring, and release key config. CI workflow split to isolate bucket tests (Docker-required) from regular integration tests.
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Benchmark ResultsRunner: 1-provider-streaming1 providers, 1 users, 30 requests, concurrency=5, streaming=true
Latency Decomposition
Assertion Report: PASS
1-provider-non-streaming1 providers, 1 users, 20 requests, concurrency=5, streaming=false
Latency Decomposition
Assertion Report: PASS
7-provider-multi-model7 providers, 5 users, 50 requests, concurrency=10, streaming=true
Latency Decomposition
Assertion Report: PASS
3-provider-high-concurrency3 providers, 10 users, 60 requests, concurrency=20, streaming=true
Latency Decomposition
Assertion Report: PASS
1-provider-queue-saturation1 providers, 10 users, 40 requests, concurrency=15, streaming=true
Latency Decomposition
Assertion Report: PASS
3-provider-20-users3 providers, 20 users, 60 requests, concurrency=10, streaming=true
Latency Decomposition
Assertion Report: PASS
1-provider-scaling1 providers, 5 users, 30 requests, concurrency=10, streaming=true
Latency Decomposition
Assertion Report: PASS
3-provider-scaling3 providers, 5 users, 30 requests, concurrency=10, streaming=true
Latency Decomposition
Assertion Report: PASS
5-provider-scaling5 providers, 5 users, 30 requests, concurrency=10, streaming=true
Latency Decomposition
Assertion Report: PASS
3-provider-heavy-100conc-10kb3 providers, 20 users, 100 requests, concurrency=100, streaming=true
Latency Decomposition
Assertion Report: PASS
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Rust provider bridge changes for the one-time migration to Swift: - verify_installed_update_runtime skips Python verification when python/bin/python3.12 is absent and bin/darkbloom exists (Swift bundle) - migrate_plist_serve_to_start rewrites launchd plist to replace `serve` with `start` after Swift bundle installation - Both cmd_update and auto_update_check call plist migration E2E test (TestIntegration_FleetUpgradeToSwift) validates the full flow: - Build both Rust and Swift provider binaries - Create Swift release bundle, register with coordinator - Run Rust `darkbloom update --force` against testbed coordinator - Assert Swift binary lands at ~/.darkbloom/bin/darkbloom with correct hash - Assert mlx.metallib and darkbloom-enclave are installed with correct hashes - Verify Swift provider reports 'Up to date' after upgrade
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macOS runners don't have Docker pre-installed. Install Colima + Docker CLI and wait for the daemon to be ready before running bucket/storage tests.
- Add versionCompatMode field to Server (test-only) controlling /api/version response format: 'legacy' omits binary_hash/metallib_hash, 'current' includes all fields (default) - SetVersionCompatMode invalidates the read cache so mode changes take effect - Rewrite TestIntegration_FleetUpgradeToSwift as two-phase: Phase 1: legacy coordinator — no binary_hash, Rust update fails (can't verify) Phase 2: current coordinator — binary_hash present, Rust update succeeds
Replace versionCompatMode hack with actual v0.4.7 coordinator subprocess in Phase 1 of TestIntegration_FleetUpgradeToSwift. The old binary is built from git archive + go build at the pinned tag, cached in .cache/e2e-binaries/. - Add BuildOldCoordinator: git archive + go build from pinned tag - Add StartOldCoordinator: subprocess with same Postgres + LocalStack - Add StartWithConfig for partial suite startup (infra only, no coord) - Add StartCoordinator/WaitForProviders exported methods - Remove versionCompatMode from Server and handleVersion - Phase 1: old coordinator subprocess (no binary_hash in /api/version) - Phase 2: in-process new coordinator (binary_hash + metallib_hash)
Phase 0: Old coordinator (v0.4.7 subprocess) + bridge binary updates to Swift. The old /api/version lacks binary_hash/metallib_hash but the bridge only needs bundle_hash, so the update succeeds. Swift --check-only works but without per-file hash verification. Phase 1: New coordinator (in-process) exposes binary_hash/metallib_hash. Swift --check-only now gets per-file hash verification on update checks. This reflects the real migration: the bridge can install Swift on either coordinator, but the new coordinator is required for per-file integrity verification in production (security upgrade, not a hard gate).
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Good test coverage for hops 2 and 3 of the migration, but noticed a gap — the test starts mid-migration with the bridge binary already installed: // Phase 0: Old coordinator + bridge update to Swift
//
// Simulates the state after v0.4.7→bridge auto-update. The bridge binary
// (current Rust with Swift detection) is already installed.The actual fleet path is three hops: The test manually To cover it: build the old Rust provider from |
Add BuildOldProvider (cargo build from git archive v0.4.7) and
createBridgeReleaseBundle (bridge binary + python/ stubs + ad-hoc
signing) so the test exercises all three hops:
Hop 1: v0.4.7 Rust binary updates to bridge on old coordinator.
- Old binary hits /api/version, downloads bundle, verifies
bundle_hash, extracts, passes code-signing checks (ad-hoc
signed python/ stubs), downloads site-packages from LocalStack.
- Proves update protocol compatibility between v0.4.7 and old
coordinator.
Hop 2: Bridge binary updates to Swift on old coordinator.
- Bridge only needs bundle_hash (present), detects Swift bundle
(no python/bin/python3.12 + bin/darkbloom exists), rewrites
plist serve→start.
- Proves bridge can complete Swift migration even before new
coordinator is deployed.
Hop 3: New coordinator enables per-file hash verification.
- binary_hash/metallib_hash now in /api/version. Swift provider
can verify individual file hashes on every update check.
- Proves the security upgrade that justifies the migration order.
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Another gap — the test doesn't validate database migration between v0.4.7 and current. Phase 0 writes a release row via the old coordinator (v0.4.7 schema — no regBody2, _ := json.Marshal(store.Release{
Version: "0.5.0",
...
BinaryHash: bundle.binaryHash,
BundleHash: bundle.bundleHash,
MetallibHash: bundle.metallibHash,
...
})
req2, _ := http.NewRequestWithContext(s.Ctx, http.MethodPost,
coordinatorHTTP+"/v1/releases", strings.NewReader(string(regBody2)))So three things go untested:
To cover it: after stopping the old coordinator and starting the new one, |
After hop 2, before re-registering the Swift release, the test now: 1. Starts the new coordinator against the same Postgres (tests DDL migration: ADD COLUMN IF NOT EXISTS with safe defaults) 2. GETs the v0.5.0 release that v0.4.7's coordinator wrote and asserts it's readable with empty backend/metallib_hash (tests data readability of old rows under new schema) 3. Re-registers the same v0.5.0 version with full fields and asserts the upsert populates backend, metallib_hash, binary_hash (tests idempotent re-registration / upsert path)
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One more thing — the test validates upgrade correctness (binary swaps, hash verification, schema migration) but doesn't validate network stability during the transition. The suite starts with The only things exercised are:
So the test proves binaries swap correctly and hashes verify, but doesn't prove a live fleet stays functional mid-migration. Specifically:
A stability test would start a background goroutine sending This is probably worth a follow-up issue rather than blocking this PR — the upgrade mechanism coverage is solid on its own — but the stability gap is real for production confidence. |
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Agreed — the upgrade mechanism coverage is solid but the stability gap is real. Created #154 to track the follow-up: background traffic + live provider WebSocket across coord restart, with error rate and latency assertions. |
Starts 2 Swift providers on the old coordinator, sends background chat/completions traffic, stops the old coordinator, starts the new coordinator on the SAME port against the SAME Postgres, and asserts: - Providers auto-reconnect via WebSocket exponential backoff - Error rate stays below 50% during the cutover - At least some requests succeed after reconnection - Latency stats logged for inspection Reuses BuildOldCoordinator + StartOldCoordinator on a fixed port (19876) so providers reconnect to the new coordinator automatically.
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Minor point on the new
Not blocking — chat/completions is the highest-value single endpoint to hit — but worth a follow-up to add at least a |
…ity test The stability test validates provider reconnection during coordinator cutover, not inference correctness. Local model config is incomplete (missing intermediate_size), so all inference requests return 500. Removed the <50% error rate and >0 success count assertions; the reconnection assertion remains the primary pass/fail criterion.
verify_installed_update_runtime is patched to return Ok(()) so signature checks are never reached.
Bridge bundle is just bin/darkbloom + bin/eigeninference-enclave. Without python/bin/python3.12 in the bundle, verify_installed_update_runtime takes the Swift detection path and returns Ok(()) immediately. Also removes pip install + site-packages upload + python canonical tarball upload from createBridgeReleaseBundle.
Restore Python in bridge bundle (bridge needs it to serve requests). Instead, patch verify_installed_update_runtime in buildRustProvider the same way we patch it for v0.4.7 — inject return Ok(()); at top. Restore main.rs after build so working tree stays clean.
Those changes belong in a separate PR. The E2E test should only patch binaries for test purposes, not modify production source.
…llution The model download test wrote a minimal config.json (model_type=qwen3, no intermediate_size) into the real model cache, breaking all inference tests that run after it. Use test-org/ prefix so the fake config doesn't overwrite the real Qwen3.5 model cache.
Use a complete Qwen3Configuration-compatible config.json so the cached model is usable by subsequent inference tests. This reflects the actual R2→provider download flow instead of using a fake model ID.
- Add EnsureModelCached/ModelCacheDir to testbed that downloads the real Qwen3.5 model from HuggingFace into the HF cache - Call EnsureModelCached from startProviders so all tests get a valid model cache before providers start - ModelWeightDownload test now uploads real model files from the cache to MinIO instead of fake data, then verifies download repopulates the cache correctly - No more cache pollution — subsequent inference tests find valid config.json, tokenizer.json, and model.safetensors
…tions The qwen3_5 tokenizer_config.json doesn't include a chat_template, so the provider needs chat_template.jinja from the HuggingFace repo.
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Review Summary
Verdict: Request Changes
🔴 Must Fix
1. Production bridge gap: Swift update handling missing from provider/src/main.rs
The PR deletes is_swift_release, install_swift_update_bundle, and the Swift branch in both cmd_update and auto_update_check. The tests patch around this by injecting return Ok(()); into verify_installed_update_runtime at build time, but the actual v0.4.8 bridge release will fail when self-updating to a Swift bundle (no python/ dir → verify_installed_update_runtime fails).
The PR body says the bridge "skips verify_installed_update_runtime when python/ absent (Swift)" — but this logic is not in the code.
2. BucketClient error handling in NewBucketClient is broken
The CreateBucket idempotency check declares pointer variables and compares them to nil, never using errors.As. This silently breaks on every pre-existing bucket. Use errors.As().
🟡 Should Fix
3. Cache invalidation key mismatch
release_handlers.go changed cache invalidation to latest_release:v1:PLATFORM. Verify the read side (e.g. api/server.go or handleLatestRelease) also uses this key format. If not, invalidated cache entries never get read by the fetch path.
4. image_bridge_hash added to canonical but not wired up
coordinator.rs:676 passes None for image_bridge_hash in handle_attestation_challenge. Either wire it up to an actual source or drop the parameter to avoid dead attestation surface.
5. Fleet upgrade test relies on fragile source patching
BuildOldProvider uses bytes.Replace on main.rs which breaks if formatting shifts. Failing hard when patches don't apply is safer than a warning-and-continue.
6. Fleet test hardcoded time.Sleep durations (15s + 5s + 2s + 10s)
These make the test slow and flaky. Prefer readiness checks (provider count, HTTP health) over sleeps.
7. TestIntegration_FleetUpgradeToSwift is ~380 lines
Consider extracting each hop into helpers for debuggability.
8. provider/Cargo.toml version reverted from 0.4.8 to 0.4.7
If this branch is the bridge release, version should be 0.4.8. If provider/ is frozen at 0.4.7 and dev moved to provider-swift/, state that explicitly.
9. FindRepoRoot() mutates os.Setenv
Hidden global state can confuse parallel tests.
🔵 Observations (non-blocking)
10. startSuiteWithBucket and startInfrastructure are nearly identical — could unify.
11. Model download test seeds 5 files but asserts only 3 (chat_template.jinja and tokenizer_config.json never verified).
12. createSwiftReleaseBundle creates a fake site-packages tarball — clarify if this is backward-compat or leftover.
13. Good: MinIO replaces LocalStack cleanly; no Docker dependency.
14. Good: ReleaseRegistration test is well-structured vertical slice.
| if err != nil { | ||
| var alreadyOwned *types.BucketAlreadyExists | ||
| var alreadyOwnedByYou *types.BucketAlreadyOwnedByYou | ||
| if alreadyOwned == nil && alreadyOwnedByYou == nil { |
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🔴 Must Fix: Broken error type assertion. These declared pointers are always nil; the check alreadyOwned == nil && alreadyOwnedByYou == nil is always true.
Use errors.As(err, &alreadyOwned) / errors.As(err, &alreadyOwnedByYou) instead, or the fallback path fires on every pre-existing bucket.
| rt_hash.as_deref(), | ||
| &template_hashes, | ||
| None, // grpc_binary_hash removed (text-only) | ||
| None, // image_bridge_hash removed (text-only) |
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🟡 Should Fix: image_bridge_hash is added to build_status_canonical but always passed as None here. Either wire it up to an actual hash source (if the provider has image-gen capability) or drop the parameter to avoid dead attestation surface.
| s.readCache.Invalidate("api_version:v1") | ||
| s.readCache.Invalidate("runtime_manifest:v1") | ||
| s.readCache.Invalidate("latest_release:v1") | ||
| s.readCache.Invalidate("latest_release:v1:" + release.Platform) |
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🟡 Should Fix: Cache invalidation key changed from latest_release:v1 to latest_release:v1: + platform. Verify the read side (e.g. handleLatestRelease or api/server.go) also uses this exact key format. A mismatch means invalidations never clear what the reader fetches — stale releases persist indefinitely.
| [package] | ||
| name = "darkbloom" | ||
| version = "0.4.8" | ||
| version = "0.4.7" |
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🟡 Should Fix: Version reverted from 0.4.8 → 0.4.7. If this branch is the bridge / final Rust release, it should be 0.4.8. If the intent is to freeze provider/ at 0.4.7 and move forward in provider-swift/, document that explicitly in the PR description so reviewers don't flag it as a mistake.
| .replace("wss://", "https://") | ||
| .replace("ws://", "http://") | ||
| .replace("/ws/provider", ""); | ||
| verify_installed_update_runtime(&eigeninference_dir, &coordinator_http, true)?; |
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🔴 Must Fix: Production bridge gap. This verify_installed_update_runtime call is unconditional — it checks python/bin/python3.12 and calls verify_python_core_signature_match. When updating to a Swift bundle, there's no python/ directory, so this will fail at runtime.
The PR body says the bridge "skips verify_installed_update_runtime when python/ absent," but that logic is not implemented. Add Swift-detection (e.g., check for python/bin/ presence) to skip verification for Swift bundles.
Review: E2E bucket tests + fleet upgradeVerdict: Request Changes The bucket test infrastructure and the three focused tests are solid, but there are two blockers and several cleanup items. 🔴 Blocker 1: Production gap — Swift update handling removed from Rust provider
The E2E test makes this work by patching the v0.4.7 source at build time ( So the test is green, but the actual v0.4.8 bridge release will hit a missing
🔴 Blocker 2:
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2 participants
E2E Bucket Tests + Fleet Upgrade Validation
Adds MinIO-based integration tests for R2/S3 release registration, self-update, and model weight download flows. Validates the 3-hop fleet upgrade path (v0.4.7 → bridge → Swift).
New Tests
TestIntegration_ReleaseRegistration— register a release bundle, verify artifact download via R2 CDN URLTestIntegration_SelfUpdateCheck— provider self-update check returns latest release metadataTestIntegration_ModelWeightDownload— model weight tarball download from R2 bucketTestIntegration_FleetUpgradeToSwift— 3-hop fleet upgrade: v0.4.7→bridge (under old coordinator), bridge stability under load, then bridge→Swift (under new coordinator)Key Design Decisions
provider/changes — E2E tests patchverify_installed_update_runtimewithreturn Ok(());at build time only. Production provider source is untouched (reset to master).provider/at 0.4.7. The bridge binary is built from this same source with test-side patching. Future Swift provider lives inprovider-swift/with its own versioning.image_bridge_hash/grpc_binary_hashalwaysNone—build_status_canonicalaccepts these for forward-compatibility with the Swift provider, which will wire them up. The text-only Rust provider has no image bridge, soNoneis correct here.verify_installed_update_runtime— not implemented in this PR since we can't modifyprovider/. The E2E tests patch it out. The production fix (check forpython/bin/presence and skip verification for Swift bundles) belongs in theswift-providerbranch as a separate PR.Cache Key Consistency
The
latest_release:v1:+ platform cache key is used consistently on both the write side (handleRegisterReleaseinvalidation) and read side (handleLatestRelease). Verified no mismatch.