[all] localhost ansible_become=True infra1 ansible_host=10.1.0.2 ansible_become=True ansible_user=root keystone1 ansible_host=10.1.0.3 ansible_become=True ansible_user=root [all_containers] infra1 keystone1 [rabbitmq_all] infra1 [galera_all] infra1 [memcached_all] infra1 [service_all:children] rabbitmq_all galera_all memcached_all [keystone_all] keystone1 [utility_all] keystone1