Where is the best place in an Ansible playbook to store information about environment parameters?

In an Ansible playbook, it is best to store environment parameters in variable files (vars files) or in inventory files.

• Inventory — describes hosts and groups, allowing you to set variables for specific groups or hosts.
• Vars files — YAML files with variables, which are included in the playbook via the vars_files directive.

This approach separates configuration from playbook logic, making maintenance and reuse easier.

Example of including a vars file:

- hosts: webservers
  vars_files:
    - vars/stage.yml
  tasks:
    - name: Example task
      debug:
        msg: "Parameter: {{ some_param }}"