Configuring components that monitor user-defined projects

• Edit the cluster-monitoring-config configmap object in the openshift-monitoring project:

  cat << EOF | oc apply --validate -f -
  apiVersion: v1
  kind: ConfigMap
  metadata:
    name: user-workload-monitoring-config
    namespace: openshift-user-workload-monitoring
  data:
    config.yaml: |
      prometheus: 
        retention: 24h 
        resources:
          requests:
            cpu: 200m 
            memory: 2Gi
  EOF
  

  For more information about UserWorkloadConfiguration options, see https://docs.redhat.com/documentation/openshift_container_platform/4.17/html/monitoring/config-map-reference-for-the-cluster-monitoring-operator#userworkloadconfiguration.

  • Defines the Prometheus component and the subsequent lines define its configuration.
  • Configures a twenty-four-hour data retention period for the Prometheus instance that monitors user-defined projects.
  • Defines a minimum resource request of 200 millicores for the Prometheus container.
  • Defines a minimum pod resource request of 2 GiB of memory for the Prometheus container.