November 2016
Intermediate to advanced
378 pages
7h 36m
English
Content preview from Mastering SaltStack - Second EditionBecome 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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Working with beacons
Beacons are a very new feature in Salt, but they've already gained quite a following. In past versions of Salt, if a third-party process needed to raise an event inside Salt, it would have to explicitly make a call to Salt to do so. Beacons overcome this by allowing events to be triggered by third-party processes without having to perform any work inside that process itself.
As you can imagine, beacons were designed for monitoring and, specifically, alerting purposes. While monitoring states are fairly passive, in which they only run when called explicitly or via the scheduler, beacons are very proactive, in which they are constantly watching for changes.
Monitoring file changes
Beacons are run on a regular basis on the target ...
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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.