14.2. Upgrading all Compute nodes to RHEL 9.2

Procedure

1. Log in to the undercloud host as the stack user.

2. Source the stackrc undercloud credentials file:

   $ source ~/stackrc

3. In the container-image-prepare.yaml file, ensure that only the tags specified in the ContainerImagePrepare parameter are included, and the MultiRhelRoleContainerImagePrepare parameter is removed. For example:

   parameter_defaults:
     ContainerImagePrepare:
     - tag_from_label: "{version}-{release}"
       set:
         namespace:
         name_prefix:
         name_suffix:
         tag:
         rhel_containers: false
         neutron_driver: ovn
         ceph_namespace:
         ceph_image:
         ceph_tag:

4. In the roles_data.yaml file, replace the OS::TripleO::Services::NovaLibvirtLegacy service with the OS::TripleO::Services::NovaLibvirt service that is required for RHEL 9.2.

5. Include the -e system_upgrade.yaml argument and the other required -e environment file arguments in the overcloud_upgrade_prepare.sh script as shown in the following example:

   $ openstack overcloud upgrade prepare --yes
   …​
   -e /home/stack/system_upgrade.yaml
   …​

6. Run the overcloud_upgrade_prepare.sh script.

7. Upgrade the operating system on the Compute nodes to RHEL 9.2. Use the --limit option with a comma-separated list of nodes that you want to upgrade. The following example upgrades the compute-0, compute-1, and compute-2 nodes.

   $ openstack overcloud upgrade run --yes --tags system_upgrade --stack <stack> --limit compute-0,compute-1,compute-2

   • Replace <stack> with the name of your stack.

8. Upgrade the containers on the Compute nodes to RHEL 9.2. Use the --limit option with a comma-separated list of nodes that you want to upgrade. The following example upgrades the compute-0, compute-1, and compute-2 nodes.

   $ openstack overcloud upgrade run --yes --stack <stack>  --limit compute-0,compute-1,compute-2