第2章 Multicluster storage health

Procedure

1. Create the configmap file named observability-metrics-custom-allowlist.yaml and add the name of the custom metric to the metrics_list.yaml parameter.

   You can use the following YAML to list the OpenShift Data Foundation metrics on Hub cluster. For details, see Adding custom metrics.

   kind: ConfigMap
   apiVersion: v1
   metadata:
     name: observability-metrics-custom-allowlist
     Namespace: open-cluster-management-observability
   data:
     metrics_list.yaml: |
       names:
         - odf_system_health_status
         - odf_system_map
         - odf_system_raw_capacity_total_bytes
         - odf_system_raw_capacity_used_bytes
       matches:
         - __name__="csv_succeeded",exported_namespace="openshift-storage",name=~"odf-operator.*"

2. Run the following command in the open-cluster-management-observability namespace:

   # oc apply -n open-cluster-management-observability -f observability-metrics-custom-allowlist.yaml

   After observability-metrics-custom-allowlist yaml is created, RHACM will start collecting the listed OpenShift Data Foundation metrics from all the managed clusters.

   If you want to exclude specific managed clusters from collecting the observability data, add the following cluster label to your clusters: observability: disabled.

3. To view the multicluster health, see chapter verifying multicluster storage dashboard.