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Appendix B. Red Hat OpenStack Platform for POWER
In a new Red Hat OpenStack Platform installation, you can deploy overcloud Compute nodes on POWER (ppc64le) hardware. For the Compute node cluster, you can use the same architecture, or use a combination of x86_64 and ppc64le systems. The undercloud, Controller nodes, Ceph Storage nodes, and all other systems are supported only on x86_64 hardware.
When you configure access to external Ceph in a multi-architecture cloud, set the CephAnsiblePlaybook parameter to /usr/share/ceph-ansible/site.yml.sample and include your client key and other Ceph-specific parameters.
The following services typically form part of the Controller node and are available for use in custom roles as Technology Preview:
Block Storage service (cinder)
Image service (glance)
Identity service (keystone)
Networking service (neutron)
Object Storage service (swift)
Note
Red Hat does not support features in Technology Preview.
For more information about composable services, see composable services and custom roles in the Advanced Overcloud Customization guide. Use the following example to understand how to move the listed services from the Controller node to a dedicated ppc64le node:
rsync -a /usr/share/openstack-tripleo-heat-templates/. ~/templates
cd ~/templates/roles
cat <<EO_TEMPLATE >ControllerPPC64LE.yaml
sed -i~ -e '/OS::TripleO::Services::\(Cinder\|Glance\|Swift\|Keystone\|Neutron\)/d' Controller.yaml
cd ../
openstack overcloud roles generate \
--roles-path roles -o roles_data.yaml \
Controller Compute ComputePPC64LE ControllerPPC64LE BlockStorage ObjectStorage CephStorage
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