--- env_lab: hosts: rocky-1: ansible_host: 192.168.122.109 rocky-2: ansible_host: 192.168.122.218 rocky-3: ansible_host: 192.168.122.83 vars: ansible_user: cloud-user environment_name: lab # Inject roles roles: children: role_web: hosts: rocky-1: rocky-3: role_db: hosts: rocky-2: