September 2018
Beginner to intermediate
214 pages
5h 53m
English
Content preview from Ansible Quick Start Guide
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Avoiding the use of command modules
Ansible offers a few modules that allow you to run commands to be executed as they are in the remote hosts. This is handy when the Ansible modules do not cover the task that is intended to be performed, which is especially the case when there are complex tasks.
The issue with command modules is that they do not know whether the task has been properly executed since they can execute any command running any tool, service, and system. The return values for a command can easily be misunderstood and sometimes do not reflect what really happened after the command execution. It is recommended that you use the changed_when option in the task in the playbook, so it looks as follows:
- name: Execute a Windows Write ...
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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.