February 2017
Intermediate to advanced
440 pages
8h 45m
English
Content preview from Infrastructure as Code CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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.
Getting ready
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 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.