Priority in hostvars in Ansible inventory

Configuration for all hosts can be applied to [all:vars]. The same variables in the children group will take priority. For example if you have:

[centos]
centos1 ansible_port=2222

[all:vars]
ansible_port=1234

The priority will be at the port 2222.

Same rules apply to the other parent groups. Example:

[centos]
centos1 ansible_port=2222

[ubuntu]
ubuntu[1:3]

[linux:children]
centos
ubuntu

[linux:vars]
ansible_port=1234

In this case - the same the priority will be at the port 2222.