+[opnfv]
+opnfv ansible_ssh_host=192.168.122.2
+
+[controller]
+controller00 ansible_ssh_host=192.168.122.3
+controller01 ansible_ssh_host=192.168.122.4
+controller02 ansible_ssh_host=192.168.122.5
+
+[compute]
+compute00 ansible_ssh_host=192.168.122.6
+compute01 ansible_ssh_host=192.168.122.7