January 2017
Intermediate to advanced
258 pages
4h 53m
English
Content preview from Implementing DevOps on AWSBecome 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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Writing Configuration Management code
For SaltStack to help us configure our node as a web server, we need to tell it what one of those should look like. In Configuration Management terms, we need to describe the desired state of the machine.
In our example, we will be using a combination of SaltStack States, Pillars, Grains, and Top files to describe the processes of:
- Creating Linux user accounts
- Installing services (NGINX and PHP-FPM)
- Configuring and running the installed services
States
A State contains a set of instructions which we would like to be applied to our EC2 minion(s). We will use /srv/salt/states on the minion as the root of the Salt State tree. States can be stored in there in the form of a single file, for example /srv/salt/states/mystate.sls ...
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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.
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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.