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Stage 12: observability & performance (OTel/OTLP, domain metrics, guest GC)
Tests · Go / test (push) Successful in 11s
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Tests · Integration / integration (push) Successful in 12s
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Tests · Go / test (pull_request) Successful in 10s
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Tests · Integration / integration (pull_request) Successful in 11s
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- pkg/telemetry: shared OTel provider bootstrap (none/stdout/otlp + W3C
  propagators + Go runtime metrics); backend/internal/telemetry becomes a thin
  facade keeping its gin middleware.
- Telemetry parity: gateway and the Telegram connector gain telemetry runtimes
  and config (GATEWAY_/TELEGRAM_ SERVICE_NAME + OTEL_*); otelgrpc instruments the
  backend push server, the gateway's backend+connector clients and the connector
  server. Default exporter stays none (collector/dashboards are Stage 14).
- Operational metrics (variant attribute on game-scoped ones): game_replay_duration,
  game_move_validate_duration, games_started_total, games_abandoned_total,
  game_cache_active, chat_messages_total{kind}, gateway edge_request_duration.
  Wired via the SetMetrics setter pattern (default no-op meter).
- TODO-3: account.GuestReaper deletes guests with no game seat past
  BACKEND_GUEST_RETENTION (default 30d, swept every BACKEND_GUEST_REAP_INTERVAL).
- Tests: pkg/telemetry exporter selection; game/social/edge metric recording via
  a manual reader; config (otlp accepted, guest knobs); inttest guest reaper.
- Docs: PLAN.md re-scopes Stage 12 and adds Stage 13 (alphabet-on-wire) + Stage 14
  (CI/deploy) with the agreed dictionary-versioning resolution; ARCHITECTURE 11/13,
  TESTING, the three READMEs and FUNCTIONAL(+ru) updated.
This commit is contained in:
Ilia Denisov
2026-06-04 14:22:15 +02:00
parent 01485d8fc6
commit dcd8de8b00
44 changed files with 1434 additions and 224 deletions
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gateway/README.md
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@@ -72,6 +72,9 @@ connector (`ValidateLoginWidget`) and forward the trusted `external_id`. These
| `GATEWAY_SESSION_TTL` | `10m` | cached session lifetime |
| `GATEWAY_SESSION_CACHE_MAX` | `50000` | cached session cap |
| `GATEWAY_PUSH_HEARTBEAT_INTERVAL` | `15s` | live-stream keep-alive |
| `GATEWAY_SERVICE_NAME` | `scrabble-gateway` | OpenTelemetry `service.name` |
| `GATEWAY_OTEL_TRACES_EXPORTER` | `none` | `none`, `stdout` or `otlp` (gRPC; endpoint from `OTEL_EXPORTER_OTLP_*`) |
| `GATEWAY_OTEL_METRICS_EXPORTER` | `none` | `none`, `stdout` or `otlp` |
Rate-limit defaults (built-in): public 30/min·IP (burst 10), authenticated
120/min·user (burst 40), admin 60/min·IP (burst 20), email-code 5/10 min·IP.