Controlling the Hosts Execution of Ansible Playbooks

I this video you will learn the controlling of Ansible Playbooks execution, restricting it to limited hosts. I n some respects hard coding the hosts keys is obvious, but also can be risky if the Ansible Playbook is executed without checked. There is the option --limit to limit which the hosts execution list. However, that is dependent on you remembering to do this. Far better is that you use a variable for your hosts key value. If you forget to supply the variable the play cannot execute, so you have to suplly the value and gice thought to the execution