August 2015
Intermediate to advanced
168 pages
3h 32m
English
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Refactoring the MySQL role
Our existing MySQL role installs and configures only the server. More often than not, all we need to do is just install the MySQL client package and not the server. We don't have the ability to selectively do so.
Note
The scenario:
We have been tasked to refactor the MySQL role and make it conditionally install the MySQL server based on a variable value. By default, it should just install MySQL client packages.
Boolean variables could be useful to set up an an on/off switch. We will add a variable and set its default value to false. This time, we will create a multilevel variable or a nested hash.
Multilevel variable dictionaries
So far, we have been naming variables as mysql_bind, mysql_port, and so on and using an underscore ...
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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.