9.4. 为 NetObserv 仪表板创建 Loki 速率限制警报

流程

1. 点导入图标 + 创建 YAML 文件。

2. 向 YAML 文件添加警报规则配置。在以下 YAML 示例中，当达到 Loki 速率限制时，会创建一个警报：

   apiVersion: monitoring.openshift.io/v1
   kind: AlertingRule
   metadata:
     name: loki-alerts
     namespace: openshift-monitoring
   spec:
     groups:
     - name: LokiRateLimitAlerts
       rules:
       - alert: LokiTenantRateLimit
         annotations:
           message: |-
             {{ $labels.job }} {{ $labels.route }} is experiencing 429 errors.
           summary: "At any number of requests are responded with the rate limit error code."
         expr: sum(irate(loki_request_duration_seconds_count{status_code="429"}[1m])) by (job, namespace, route) / sum(irate(loki_request_duration_seconds_count[1m])) by (job, namespace, route) * 100 > 0
         for: 10s
         labels:
           severity: warning

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3. 点 Create 将配置文件应用到集群。