Before you update your Red Hat OpenStack Services on OpenShift (RHOSO) environment, ensure that your environment is ready to be updated to avoid any issues during the update.

Complete the following prerequisites:

• You have the oc command line tool installed on your workstation.
• You are authorized to access the Red Hat OpenShift Container Platform (RHOCP) cluster.
• You have updated your Red Hat OpenStack Services on OpenShift (RHOSO) Operators by using the Operator Lifecycle Manager.
• You enabled the repositories for your data plane nodes.
• You backed up your current environment with your preferred third-party backup and recovery tool.
• Your Compute nodes are running Red Hat Enterprise Linux (RHEL) 9.2, 9.4, or 9.6.
• Red Hat OpenStack Services on OpenShift (RHOSO) versions earlier than RHOSO 18.0.6 require Red Hat OpenShift Container Platform (RHOCP) 4.16, while RHOSO 18.0.6 and later require RHOCP 4.18. If you are updating your environment to RHOSO 18.0.6 from a version earlier than 18.0.6, you must follow the update process that is described in the Red Hat Knowledgebase article, Updating to RHOSO 18.0.6 on RHOCP 4.18 from an earlier RHOSO version on RHOCP 4.16.
• If you removed services from a node set’s custom resource (CR), run the cleanup service to remove these orphaned artifacts and maintain a clean environment. For more information, see "Remove unused service artifacts from data plane nodes."