The Cloud Lifecycle Manager only creates a default availability zone during installation. If your system has multiple failure/availability zones defined in your input model, these zones will not get created automatically.

Once the installation has finished, you can run the nova-cloud-configure.yml playbook to configure availability zones and assign compute nodes to those zones based on the configuration specified in the model.

You can run the playbook nova-cloud-configure.yml any time you make changes to the configuration of availability zones in your input model. Alternatively, you can use Horizon or the command line to perform the configuration.

For more details, see the OpenStack Availability Zone documentation at https://docs.openstack.org/nova/pike/user/aggregates.html.