OG T 41bf0681cf feat(observability): Phase O-2/O-3 OTEL Log管線 + Event Exporter + Remote Write ...

O-2.1: OTEL Collector DaemonSet (filelog receiver)
  - 收集所有 K3s 節點 Pod stdout/stderr → SigNoz ClickHouse
  - CRI log parser (Go time layout for +08:00 timezone)
  - filter processor 排除 kube-system debug noise
  - observability namespace PSA privileged (log 目錄需 root)
  - 資源限制: 50m-200m CPU / 64-128Mi Memory

O-2.2: kubernetes-event-exporter
  - K8s Event → 結構化 JSON Log → SigNoz
  - Warning/Error 全量保留, Normal 過濾高頻事件
  - 解決: Event 預設僅保留 ~1hr 的致命盲區

O-3: Prometheus remote_write 配置模板
  - 白名單: ~50 關鍵 metric series (node/container/kube/api/db)
  - 目標: 90 天長期儲存於 SigNoz ClickHouse

已部署驗證: 3 Pod Running, 0 error, filelog 正常監控所有 namespace

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-02 14:01:42 +08:00

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