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我已经使用以下命令安装了 promethus 适配器:

helm install prometheus-adapter prometheus-community/prometheus-adapter --namespace monitoring
-f adapter_custom_values.yaml

但是,当使用 kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1 检查时,我没有看到任何指标被注册。这是 adapter_custom_values.yaml 文件的预览:

prometheus:

     # Run `kubectl get svc -n namespace` to get the url of Prometheus
    
      url: http://prometheus-kube-prometheus-prometheus.monitoring.svc

      port: 9090
    
    logLevel: 10
    
    replicas: 1
    
    rules:
    
      # Whether to enable the default rules
    
      default: false
    
      # Add custom metrics API here
    
      custom:
    
      # plex_queue_size API
    
      - seriesQuery: 'plex_queue_size'
    
        resources:
    
          overrides:
    
            namespace: {resource: "namespace"}
    
            pod: {resource: "pod"}
    
        name:
    
          matches: ^(.*)
    
          as: "plex_queue_size"
    
        metricsQuery: <<.Series>>{<<.LabelMatchers>>}

但是,当使用命令kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1检查自定义指标 api 时,我得到空响应:

{
  "kind": "APIResourceList",
  "apiVersion": "v1",
  "groupVersion": "custom.metrics.k8s.io/v1beta1",
  "resources": []
}

从适配器日志中,我可以看到对 prometheus 的请求是成功的,但是 Responsde Body 中的数据是空的:

GET http://prometheus-kube-prometheus-prometheus.monitoring.svc:9090/api/v1/series?match%5B%5D=plex_queue_size&start=1640091045.342 200 OK
Response Body: {"status":"success","data":[]}
Set available metric list from Prometheus to: [[]] .

Kube-prometheus-stack 也与 helm 一起安装。

我的问题是为什么自定义指标没有在自定义指标 API 中注册?任何帮助,将不胜感激。

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