[controller] host1 ansible_host=10.1.0.50 ansible_user=root ansible_ssh_pass=root host2 ansible_host=10.1.0.51 ansible_user=root ansible_ssh_pass=root [compute] host4 ansible_host=10.1.0.53 ansible_user=root ansible_ssh_pass=root host5 ansible_host=10.1.0.54 ansible_user=root ansible_ssh_pass=root [nodes:children] controller compute