5.9.3. 서비스 모니터

사전 요구 사항

• Operator SDK를 사용하여 Go 기반 Operator가 생성됨
• Kubernetes 기반 클러스터에 Prometheus Operator가 배포됨

프로세스

• Operator 코드에 metrics.CreateServiceMonitor() 도우미 함수를 추가합니다.

  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.
      }
      ...
  }