ha.yml

- hosts: virthost
  roles:
    - role: libvirt/teardown
    - role: libvirt/setup

- hosts: localhost
  roles:
    - rebuild-inventory

- hosts: undercloud
  roles:
    - overcloud

inventory

[virthost]                                                                  
my.target.host ansible_user=targetuser                                      

nodes.yml

extra_args: >-
  --control-scale 3
  -e /usr/share/openstack-tripleo-heat-templates/environments/puppet-pacemaker.yaml
  --ntp-server pool.ntp.org
baremetal_vm_xml: |
  <cpu mode='host-passthrough'/>
libvirt_args: --libvirt-type kvm

# Set these to values appropriate for your target system.  You
# by default get three controllers, one compute node, and
# one ceph node (so this example has a memory footprint of
# 32GB, which is probably too much for a host with only
# 32GB of RAM).
control_memory: 8192
compute_memory: 4096
ceph_memory: 4096