12.6.3. ServiceMonitor リソース

前提条件

• Operator SDK を使用して生成される Go ベースの Operator
• Prometheus Operator がデプロイされた Kubernetes ベースのクラスター

手順

• metrics.CreateServiceMonitor() ヘルパー関数を Operator コードに追加します。

  import(
      "k8s.io/api/core/v1"
      "github.com/operator-framework/operator-sdk/pkg/metrics"
      "machine.openshift.io/controller-runtime/pkg/client/config"
  )
  func main() {
  
      ...
      // Populate below with the Service(s) for which you want to create ServiceMonitors.
      services := []*v1.Service{}
      // Create one ServiceMonitor per application per namespace.
      // Change the below value to name of the Namespace you want the ServiceMonitor to be created in.
      ns := "default"
      // restConfig is used for talking to the Kubernetes apiserver
      restConfig := config.GetConfig()
  
      // Pass the Service(s) to the helper function, which in turn returns the array of ServiceMonitor objects.
      serviceMonitors, err := metrics.CreateServiceMonitors(restConfig, ns, services)
      if err != nil {
          // Handle errors here.
      }
      ...
  }