inventory files lists many servers and there is no limit

We can group servers through the ini syntax like so :

[app]
192.168.1.1
 
[bdd]
192.168.2.1

we can then group both of them by mentioning only the group names

[multi:children]
app
bdd

It’s also important to know that we can specify particular variables for the groups. So if we want to set variables for the multi group we would do this :

[multi:vars]
ansible_user=gdo
ansible_ssh_private_key_file=~/.ssh/id_rsa_specific