January 2018
Intermediate to advanced
398 pages
7h 54m
English
book
OpenStack Cloud Computing Cookbook - Fourth Edition
by Kevin Jackson, Cody Bunch, Egle Sigler, James Denton
Content preview from OpenStack Cloud Computing Cookbook - Fourth 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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Root SSH keys configuration
Ansible is designed to help system administrators drive greater efficiency in the datacenter by being able to configure and operate many servers using orchestration playbooks. In order for Ansible to be able to fulfill its duties, it needs an SSH connection on the Linux systems it is managing. Furthermore, in order to have a greater degree of freedom and flexibility, a hands-off approach using SSH public private key pairs is required.
As the installation of OpenStack is expected to run as root, this stage expects the deployment host's root public key to be propagated across all servers.
Getting ready
Ensure that you are root on the deployment host. In most cases, this is the first infrastructure controller node that we ...
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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.