groups:
  - name: lehuo-api
    rules:
      - alert: ApiUnavailable
        expr: probe_success{job="lehuo-api"} == 0
        for: 2m
        labels: { severity: critical }
        annotations: { summary: '乐活公益 API 不可用' }
      - alert: ApiHighLatency
        expr: lehuo_api_p95_milliseconds > 1000
        for: 10m
        labels: { severity: warning }
        annotations: { summary: 'API P95 超过 1 秒' }
      - alert: NotificationDeadLetters
        expr: lehuo_notification_dead_total > 0
        for: 5m
        labels: { severity: warning }
        annotations: { summary: '微信通知存在死信' }
      - alert: BackupMissing
        expr: time() - lehuo_backup_last_success_timestamp > 93600
        for: 10m
        labels: { severity: critical }
        annotations: { summary: '超过 26 小时无成功数据库备份' }