In this chapter, you learned:
Host patterns are used to specify the managed hosts to be targeted by plays or ad hoc commands.
Dynamic inventory scripts can be used to generate dynamic lists of managed hosts from directory services or other sources external to Ansible.
The forks parameter in the Ansible configuration file sets the maximum number of parallel connections to managed hosts.
The serial parameter can be used to implement rolling updates across managed hosts by defining the number of managed hosts in each rolling update batch.
You can use the import_playbook feature to incorporate external play files into playbooks.
You can use the include_tasks or import_tasks features to incorporate external task files into playbooks.
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.