In this chapter, you learned:
Ansible variables allow administrators to reuse values across files in an entire Ansible project.
Variables can be defined for hosts and host groups in the inventory file.
Variables can be defined for playbooks by using facts and external files. They can also be defined on the command line.
The register keyword can be used to capture the output of a command in a variable.
Ansible Vault is one way to protect sensitive data such as password hashes and private keys for deployment using Ansible Playbooks.
Ansible facts are variables that are automatically discovered by Ansible from a managed host.
Click CREATE to build all of the virtual machines needed for the classroom lab environment. This may take several minutes to complete. Once created the environment can then be stopped and restarted to pause your experience.
If you DELETE your lab, you will remove all of the virtual machines in your classroom and lose all of your progress.