Example 6

hosts.ini

[centos]
provisioner     ansible_connection=local
centos2         ansible_host=192.168.77.22  ansible_port=2345

[ubuntu]
ubuntu1         ansible_host=192.168.77.23

[centos:vars]
ansible_become=true

Tip

Apart from defining hostvars, which describe only a single host, we can incorporate groupvars that gather common variables for all remote hosts that belong to the same group.

Try to execute the whoami command on all hosts.

ansible all -m command -a "whoami"

What is the expected output of the command ?

The command will be run as the root user for all hosts that belong to the centos group.