OpenShift Container Platform

Adding node pools

You can create node pools for a hosted cluster by specifying a name, number of replicas, and any additional information, such as an agent label selector.

Only a single agent namespace is supported for each hosted cluster. As a result, when you add a node pool to a hosted cluster, the node pool must be either from a single InfraEnv resource or from an InfraEnv resource that is in the same agent namespace.

Procedure

To create a node pool, enter the following information:
```
$ hcp create nodepool agent \
  --cluster-name <hosted_cluster_name> \
  --name <nodepool_name> \
  --node-count <worker_node_count> \
  --agentLabelSelector size=medium
```
- --cluster-name specifies your hosted cluster name, for example, my-hosted-cluster.
- --name specifies the name of your node pool, for example, my-hosted-cluster-extra-cpu.
- --node-count specifies the worker node count, for example, 2.
- --agentLabelSelector is optional. The node pool uses agents with the size=medium label.
Check the status of the node pool by listing nodepool resources in the clusters namespace:
```
$ oc get nodepools --namespace clusters
```

Extract the admin-kubeconfig secret by entering the following command:

$ oc extract -n <hosted_control_plane_namespace> secret/admin-kubeconfig --to=./hostedcluster-secrets --confirm

Example output

hostedcluster-secrets/kubeconfig

After some time, you can check the status of the node pool by entering the following command:
```
$ oc --kubeconfig ./hostedcluster-secrets get nodes
```

Verification

Verify that the number of available node pools match the number of expected node pools by entering this command:
```
$ oc get nodepools --namespace clusters
```