[all] localhost ansible_connection=local ansible_become=True infra1 ansible_host=10.100.100.2 ansible_become=True ansible_user=root keystone1 ansible_host=10.100.100.3 ansible_become=True ansible_user=root horizon1 ansible_host=10.100.100.4 ansible_become=True ansible_user=root [all_containers] infra1 keystone1 horizon1 [rabbitmq_all] infra1 [galera_all] infra1 [service_all:children] rabbitmq_all galera_all [keystone_all] keystone1 [horizon_all] horizon1