Chapter 6. Optional: Configuring schedulable control plane nodes

Procedure

1. Log in to the Red Hat Hybrid Cloud Console and follow the instructions for installing OpenShift Container Platform using the Assisted Installer web console. For details, see Installing with the Assisted Installer web console in Additional Resources.
2. When you reach the Host discovery page, click Add hosts.
3. Optionally change the Provisioning type and additional settings as required. All options are compatible with schedulable control planes.
4. Click Generate Discovery ISO to download the ISO.

5. Set Run workloads on control plane nodes to on.

   Note

   For four nodes or less, this switch is activated automatically and cannot be changed.

6. Click Next.

Procedure

1. Follow the instructions for installing Assisted Installer using the Assisted Installer API. For details, see Installing with the Assisted Installer API in Additional Resources.

2. When you reach the step for registering a new cluster, set the schedulable_masters attribute as follows:

   $ curl https://api.openshift.com/api/assisted-install/v2/clusters/${CLUSTER_ID} \
   -X PATCH \
   -H "Authorization: Bearer ${API_TOKEN}" \
   -H "Content-Type: application/json" \
   -d '
   {
     "schedulable_masters": true 1
   }
   ' | jq

   1

   Enables the scheduling of workloads on the control plane nodes.