[all]
localhost ansible_become=True
container1 ansible_host=10.1.0.2 ansible_become=True ansible_user=root
container2 ansible_host=10.1.0.3 ansible_become=True ansible_user=root
container3 ansible_host=10.1.0.4 ansible_become=True ansible_user=root

[galera_all]
container1
container2
container3

[all_containers]
container1
container2
container3