6.2. Enabling disaster recovery dashboard on Hub cluster

Procedure

1. On the Hub cluster, open a terminal window and perform the next steps.

2. Create the configmap file named observability-metrics-custom-allowlist.yaml.

   You can use the following YAML to list the disaster recovery metrics on Hub cluster. For details, see Adding custom metrics. To know more about ramen metrics, see Disaster recovery metrics.

   kind: ConfigMap
   apiVersion: v1
   metadata:
     name: observability-metrics-custom-allowlist
     namespace: open-cluster-management-observability
   data:
     metrics_list.yaml: |
       names:
         - ceph_rbd_mirror_snapshot_sync_bytes
         - ceph_rbd_mirror_snapshot_snapshots
       matches:
         - __name__="csv_succeeded",exported_namespace="openshift-dr-system",name=~"odr-cluster-operator.*"
         - __name__="csv_succeeded",exported_namespace="openshift-operators",name=~"volsync.*"

3. In the open-cluster-management-observability namespace, run the following command:

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

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

   To exclude a specific managed cluster from collecting the observability data, add the following cluster label to the clusters: observability: disabled.