Can you list the main objects and components used in Ansible for automation of configurations?

Main objects and components of Ansible for configuration automation:

• Inventory — a list of managed hosts and groups to which tasks will be applied.
• Playbook — a YAML file describing a set of tasks to be executed on hosts.
• Task — a single action, such as installing a package or copying a file.
• Module — a functional unit executed by a task (e.g., yum module for installing packages, copy for copying files).
• Role — a structured set of playbooks, tasks, variables, and files for reuse and code organization.
• Variable — parameters that can be used to configure the behavior of playbooks and roles.
• Handler — a task that is executed only when notified (e.g., restarting a service after configuration change).
• Facts — information about target hosts, automatically gathered before executing tasks.

Example of a simple playbook that installs nginx:

- hosts: webservers
  tasks:
    - name: Install nginx
      apt:
        name: nginx
        state: present
      become: yes