Red Hat Enterprise Linux Automation with Ansible
In this chapter, you learned:
Loops are used to iterate over a set of values, for example, a simple list of strings, or a list of either hashes or dictionaries.
Conditionals are used to execute tasks or plays only when certain conditions have been met.
Handlers are special tasks that execute at the end of the play if notified by other tasks.
Handlers are only notified when a task reports that it changed something on a managed host.
Tasks are configured to handle error conditions by ignoring task failure, forcing handlers to be called even if the task failed, mark a task as failed when it succeeded, or override the behavior that causes a task to be marked as changed.
Blocks are used to group tasks as a unit and to execute other tasks depending upon whether or not all the tasks in the block succeed.
