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Appendix G. Red Hat OpenStack Platform for POWER

For a fresh Red Hat OpenStack Platform installation, overcloud Compute nodes can now be deployed on POWER (ppc64le) hardware. For the Compute node cluster, you can choose to use the same architecture, or have a mix of x86_64 and ppc64le systems. The undercloud, Controller nodes, Ceph Storage nodes, and all other systems are only supported on x86_64 hardware. The installation details for each system are covered in previous sections within this guide.

G.1. Ceph Storage
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When configuring access to external Ceph in a multi-architecture cloud, set the CephAnsiblePlaybook parameter to /usr/share/ceph-ansible/site.yml.sample along with your client key and other Ceph-specific parameters.

For example: 

parameter_defaults:
  CephAnsiblePlaybook: /usr/share/ceph-ansible/site.yml.sample
  CephClientKey: AQDLOh1VgEp6FRAAFzT7Zw+Y9V6JJExQAsRnRQ==
  CephClusterFSID: 4b5c8c0a-ff60-454b-a1b4-9747aa737d19
  CephExternalMonHost: 172.16.1.7, 172.16.1.8
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G.2. Composable Services
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The following services typically part of the controller node are available for use in custom roles as Technology Preview, and therefore, not fully supported by Red Hat:

  • Cinder
  • Glance
  • Keystone
  • Neutron
  • Swift

For more details please see the documentation for composable services and custom roles for more information. Below would be one way to move the listed services from the Controller node to a dedicated ppc64le node: 

(undercloud) [stack@director ~]$ rsync -a /usr/share/openstack-tripleo-heat-templates/. ~/templates
(undercloud) [stack@director ~]$ cd ~/templates/roles
(undercloud) [stack@director roles]$ cat <<EO_TEMPLATE >ControllerPPC64LE.yaml
###############################################################################
# Role: ControllerPPC64LE                                                     #
###############################################################################
- name: ControllerPPC64LE
  description: |
    Controller role that has all the controller services loaded and handles
    Database, Messaging and Network functions.
  CountDefault: 1
  tags:
    - primary
    - controller
  networks:
    - External
    - InternalApi
    - Storage
    - StorageMgmt
    - Tenant
  # For systems with both IPv4 and IPv6, you may specify a gateway network for
  # each, such as ['ControlPlane', 'External']
  default_route_networks: ['External']
  HostnameFormatDefault: '%stackname%-controllerppc64le-%index%'
  ImageDefault: ppc64le-overcloud-full
  ServicesDefault:
    - OS::TripleO::Services::Aide
    - OS::TripleO::Services::AuditD
    - OS::TripleO::Services::CACerts
    - OS::TripleO::Services::CephClient
    - OS::TripleO::Services::CephExternal
    - OS::TripleO::Services::CertmongerUser
    - OS::TripleO::Services::CinderApi
    - OS::TripleO::Services::CinderBackendDellPs
    - OS::TripleO::Services::CinderBackendDellSc
    - OS::TripleO::Services::CinderBackendDellEMCUnity
    - OS::TripleO::Services::CinderBackendDellEMCVMAXISCSI
    - OS::TripleO::Services::CinderBackendDellEMCVNX
    - OS::TripleO::Services::CinderBackendDellEMCXTREMIOISCSI
    - OS::TripleO::Services::CinderBackendNetApp
    - OS::TripleO::Services::CinderBackendScaleIO
    - OS::TripleO::Services::CinderBackendVRTSHyperScale
    - OS::TripleO::Services::CinderBackup
    - OS::TripleO::Services::CinderHPELeftHandISCSI
    - OS::TripleO::Services::CinderScheduler
    - OS::TripleO::Services::CinderVolume
    - OS::TripleO::Services::Collectd
    - OS::TripleO::Services::Docker
    - OS::TripleO::Services::Fluentd
    - OS::TripleO::Services::GlanceApi
    - OS::TripleO::Services::GlanceRegistry
    - OS::TripleO::Services::Ipsec
    - OS::TripleO::Services::Iscsid
    - OS::TripleO::Services::Kernel
    - OS::TripleO::Services::Keystone
    - OS::TripleO::Services::LoginDefs
    - OS::TripleO::Services::MySQLClient
    - OS::TripleO::Services::NeutronApi
    - OS::TripleO::Services::NeutronBgpVpnApi
    - OS::TripleO::Services::NeutronSfcApi
    - OS::TripleO::Services::NeutronCorePlugin
    - OS::TripleO::Services::NeutronDhcpAgent
    - OS::TripleO::Services::NeutronL2gwAgent
    - OS::TripleO::Services::NeutronL2gwApi
    - OS::TripleO::Services::NeutronL3Agent
    - OS::TripleO::Services::NeutronLbaasv2Agent
    - OS::TripleO::Services::NeutronLbaasv2Api
    - OS::TripleO::Services::NeutronLinuxbridgeAgent
    - OS::TripleO::Services::NeutronMetadataAgent
    - OS::TripleO::Services::NeutronML2FujitsuCfab
    - OS::TripleO::Services::NeutronML2FujitsuFossw
    - OS::TripleO::Services::NeutronOvsAgent
    - OS::TripleO::Services::NeutronVppAgent
    - OS::TripleO::Services::Ntp
    - OS::TripleO::Services::ContainersLogrotateCrond
    - OS::TripleO::Services::OpenDaylightOvs
    - OS::TripleO::Services::Rhsm
    - OS::TripleO::Services::RsyslogSidecar
    - OS::TripleO::Services::Securetty
    - OS::TripleO::Services::SensuClient
    - OS::TripleO::Services::SkydiveAgent
    - OS::TripleO::Services::Snmp
    - OS::TripleO::Services::Sshd
    - OS::TripleO::Services::SwiftProxy
    - OS::TripleO::Services::SwiftDispersion
    - OS::TripleO::Services::SwiftRingBuilder
    - OS::TripleO::Services::SwiftStorage
    - OS::TripleO::Services::Timezone
    - OS::TripleO::Services::TripleoFirewall
    - OS::TripleO::Services::TripleoPackages
    - OS::TripleO::Services::Tuned
    - OS::TripleO::Services::Vpp
    - OS::TripleO::Services::OVNController
    - OS::TripleO::Services::OVNMetadataAgent
    - OS::TripleO::Services::Ptp
EO_TEMPLATE
(undercloud) [stack@director roles]$ sed -i~ -e '/OS::TripleO::Services::\(Cinder\|Glance\|Swift\|Keystone\|Neutron\)/d' Controller.yaml
(undercloud) [stack@director roles]$ cd ../
(undercloud) [stack@director templates]$ openstack overcloud roles generate \
    --roles-path roles -o roles_data.yaml \
    Controller Compute ComputePPC64LE ControllerPPC64LE BlockStorage ObjectStorage CephStorage
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