More dynamic code using notifications
Wouldn't it be great if Chef knew how and what to restart automatically when a change arises? In a previous example, we added a new virtual host to our node, and we had to manually restart Apache to take the change into account. Luckily, there's a mechanism named notifications in Chef, that helps trigger an action, when a resource changes. This way, changing a virtual host can trigger a restart of the Apache HTTP server automatically.
To work through this recipe, you will need the following:
- A working Chef DK installation on the workstation
- A working Chef client configuration on the remote host
- The Chef code from the previous recipes
How to do it…
We'll start from the
apache cookbook we've left in its ...