Resizing the cluster | Reference Architecture: Google Cloud Anthos and GDC Virtual on Dell PowerFlex | Dell Technologies Info Hub

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Resizing the cluster

Resizing the cluster

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Expanding the Anthos cluster with additional nodes can be achieved by the following steps:
1. To view the status of nodes and their respective node pools:
$ kubectl -n cluster-pfm-cluster get nodepools.baremetal.cluster.gke.io
1. To expand the Anthos cluster with an additional node, edit the cluster configuration file, and in the nodePoolSpec: section, add the IP of new node to be added:
$ ./bmctl update cluster -c pfm-cluster --kubeconfig=/root/baremetal/bmctl-workspace/pfm-cluster/pfm-cluster-kubeconfig
1. After the bmctl updates the cluster, the additional node will be a part of the Anthos cluster and PowerFlex CSI will automatically Install the SDC and host the CSI pods on the new node that is a part of Kubernetes cluster.
2. To Scale down or remove a node for maintenance purpose from Anthos cluster:
$ kubectl drain rhel-wkr2

$ ./bmctl update cluster -c pfm-cluster --kubeconfig=/root/baremetal/bmctl-workspace/pfm-cluster/pfm-cluster-kubeconfig

After the bmctl updates the cluster, the node is removed from the Anthos cluster.