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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Using monitoring states
Monitoring states are one of the less commonly known pieces of functionality inside Salt, and that's a shame. While execution modules are superb for building and maintaining a baseline of information about a machine, monitoring states are designed to raise a notification when a metric falls out of the desired range.
Note
The notification in this case is not the same as an alert. It can be used to raise alerts, but it is an independent action.
As you may recall, there are four pieces of information that will always be returned from each individual state:
- Name
- Result
- Changes
- Comment
Monitoring states differ from standard states in three ways. First of all, they are not allowed to make changes to the system. Their job is to observe ...
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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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