Prerequisites

There are several prerequisites that must be completed before you add more compute machines to your Red Hat OpenShift Container Platform cluster on VMware vSphere manually.

Note

You can also use compute machine sets to automate the creation of additional VMware vSphere compute machines for your cluster.

The following prerequisites must be met:

  • You installed a cluster on vSphere.

  • You have installation media and Red Hat Enterprise Linux CoreOS (RHCOS) images that you used to create your cluster. If you do not have these files, you must obtain them by following the instructions in the installation procedure.

Important

If you do not have access to the Red Hat Enterprise Linux CoreOS (RHCOS) images that were used to create your cluster, you can add more compute machines to your Red Hat OpenShift Container Platform cluster with newer versions of Red Hat Enterprise Linux CoreOS (RHCOS) images. For instructions, see Adding new nodes to UPI cluster fails after upgrading to OpenShift 4.6+.

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