Ansible Playbook is a blueprint of automation tasks that allows a repeatable, reusable, easy configuration management and multi-machine deployment system, one that is fully adapted to expanding complex applications. If you need to execute a task with Ansible more than once, write a playbook and installed it below source control. Then we can use the playbook to push out new configurations or confirm the configuration of remote systems.
For more explanation on this video: https://www.linuxhelp.com/how-to-create-ansible-playbook-on-centos7
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