Priority of variables in Ansible (host_vars, group_vars, extra_vars)

In Ansible, variables can be set in different places, and a certain priority is applied in case of conflicts. The main priority levels for variables (from lowest to highest) are:

1. group_vars — variables defined for host groups.
2. host_vars — variables defined for a specific host.
3. extra_vars — variables passed via the command line using -e.

Thus, if the same variable is defined in multiple places, the value with the higher priority will be used. For example, extra_vars will always override values from host_vars and group_vars.

This allows flexible configuration of playbooks and overriding values when necessary.