August 2015
Intermediate to advanced
168 pages
3h 32m
English
Content preview from Ansible Playbook EssentialsBecome 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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Summary
In this chapter, you learned how to discover information about other nodes in the cluster to connect them together. We started with the introduction to magic variables and looked at the most commonly used ones. We then started creating a role for haproxy, which auto-discovers web servers and creates configurations dynamically. Finally, we looked at the issue of accessing information about hosts not in the playbook, and you learned how to solve it by enabling the caching of facts. Magic variables are very powerful, especially while orchestrating your infrastructure with Ansible, where discovering topology information automatically is very useful.
In the next chapter, you will learn how to securely pass data using vault, an encrypted data ...
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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.