mirror of
https://github.com/block/buzz.git
synced 2026-10-27 20:41:57 +00:00
88687876f7
## Why Early relay failures can currently appear as a container restart without a trustworthy in-process account of whether crypto, structured logging, configuration, relay identity, or the metrics listener failed. Most of those steps happen before the Prometheus exporter exists, so their chronology belongs in logs rather than metrics. Implements the logs-only early-startup slice of #7238. Post-bind Prometheus exporter supervision is tracked separately in #7284. ## What changed - create a process lifecycle recorder before the Tokio runtime and emit a fixed, versioned JSON schema directly to stderr; - record started and exactly one terminal event for `crypto_init`, `tracing_init`, `config_load`, `key_load`, `metrics_bind`, and the aggregate `process_telemetry` phase; - keep every status and reason bounded and suppress raw errors that could contain credentials, keys, URLs, or other secrets; - return typed metrics-install errors so `metrics_bind` can be classified without logging raw values, while preserving the existing public `metrics::install` API; - document the logs-only evidence contract and add real child-process regressions for success and failure paths. This PR adds **no startup metric families** and no dashboard contract. Existing application metrics remain unchanged. ## Verification Exact head: `8faf7526822a119efa035e58b2b3c59aa67fc81d` - `cargo fmt --all -- --check` - `cargo clippy -p buzz-relay --all-targets -- -D warnings` - relay binary target: 13 passed, 1 PostgreSQL-only test ignored - real relay child-process lifecycle target: 9 passed - full relay package library target: 1,023 passed, 89 ignored; the same six media tests failed at `crates/buzz-relay/src/api/media.rs:1145` with `Sqlx(PoolTimedOut)` because local PostgreSQL is unavailable - three independent exact-head reviews found no correctness, security, compatibility, lifecycle-accounting, logs-only-scope, or test-adequacy finding All exact-head GitHub CI gates are green, including lint, unit tests, PostgreSQL, relay/backend/desktop integration, both Linux server cross-compiles, Windows/macOS builds, and security checks. ## Staging verification - exact multi-architecture image: `dev-sha-8faf7526822a119efa035e58b2b3c59aa67fc81d-run-33708188952-1` - immutable manifest: `sha256:26cad28266a6bb0b0e7081eb6091d374e5489f8bb78c475a4a65737dee86cc67` - image workflow: https://github.com/block/buzz/actions/runs/33708188952 - focused staging deployment: https://github.com/squareup/builderbot-platform-core-infrastructure/pull/314 - replacement ReplicaSet `buzz-d68764bc7` has two Ready pods with zero restarts - Datadog received one complete, contiguous sequence 1-12 from each pod; both end with `process_telemetry/terminal/succeeded` at 3 ms - queries scoped to the replacement ReplicaSet return no data for the removed `buzz_startup_phase_terminal` or `buzz_startup_phase_duration_seconds` families The experimental Row 7 was removed from the Buzz Startup & Rollout Safety dashboard. This logs-only PR deliberately adds no replacement dashboard row. --- **Update Sep 3, 12:26 ET:** Clarified the review boundary: this PR does not close the broader #7238. Later exporter-task termination is pre-existing runtime behavior and is now explicitly tracked in #7284; no production code or staged image changed in this update. Generated with Codex Signed-off-by: Ravneet Arora <rarora@squareup.com>