Writing and Using Chef Handlers
Visibility into what is happening on our systems is incredibly important. Chef Handlers give us the ability to listen for specific events in our systems and trigger code, based on that information, such as sending notifications or logging additional information. In this hands-on lab, you'll be asked to create and deploy a custom handler that sends a request to an external web application when the
chef-client run fails. By the time you've finished this lab, you should feel more comfortable creating and using handlers in your own Chef environment.