NOTES: The Rook Operator has been installed. Check its status by running: Visit https://rook.io/docs/rook/master for instructions on how to create & configure Rook clusters kubectl --namespace rook get pods -l "app=rook-ceph-operator" You can verify the successful installation, as shown in Example 4-22. As the last step we install the Rook Ceph cluster chart. You can do this from the IBM Cloud  Private catalog. However, below we show the command to install it with the Helm CLI.  Create a  rbd-values.yaml  file that contains the nodenames and disk devices as shown in  Example 4-23 or node names and directory paths as shown in Example 4-24. kubectl get pods -n rook NAME READY STATUS RESTARTS AGE rook-ceph-agent-g2r9g 1/1 Running 0 2m49s rook-ceph-agent-nscs5 1/1 Running 0 2m49s rook-ceph-agent-qdwz7 1/1 Running 0 2m49s rook-ceph-operator-6d7f98d49d-shtp9 1/1 Running 0 3m1s rook-discover-976cj 1/1 Running 0 2m49s rook-discover-gmkj5 1/1 Running 0 2m49s rook-discover-jgd7q 1/1 Running 0 2m49s Example 4-22 Verification of Rook Ceph Operator pods status Example 4-23 Sample rbd-values.yaml file specifying target disk devices Example 4-24 Sample values.yaml file specifying target paths rookOperatorNamespace: "rook" cluster: storage: nodes: - name: "10.73.147.205" devices: - name: "xvde" - name: "10.73.147.237" devices: - name: "xvde" - name: "10.73.147.243" devices: - name: "xvde" rookOperatorNamespace: "rook" cluster: storage: nodes: - name: "1.2.3.4" directories: Install the Rook Ceph cluster (ibm-rook-rbd-cluster) chart Prepare the values.yaml file for Rook RBD Cluster chart Chapter 4. Managing persistence in IBM Cloud Private  137