Why Ansible is called agentless? How will you run an ansible-playbook, tell me the command used for it? What are variables in ansible? What are the roles in ansible and what is the benefit of using it? How does ansible know where it has to run the playbook, where it maintains this data? Can we have a separate inventory file? What are modules in Ansible, can you name some and their behaviour?

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Ansible is called agentless because it does not require any agent to be installed on the target host.

Ansible uses SSH to connect to the target host and execute commands remotely.
The command to run an ansible-playbook is 'ansible-playbook '.
Variables in Ansible are used to store values that can be used across multiple tasks and playbooks.
Roles in Ansible are a way to organize tasks, handlers, and variables into reusable units.
Ansible maintains inventory data in the inventory file, which can be customized to include additional hosts and groups.
Modules in Ansible are pre-built scripts that can be used to perform specific tasks on the target host.
Some examples of modules in Ansible are 'apt', 'copy', and 'service'.
The benefit of using modules is that they simplify the process of writing playbooks and ensure consistency across different environments.

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