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Get Ansible for DevOps: Server and configuration management for PDF

Posted On April 5, 2018 at 10:11 am by / Comments Off on Get Ansible for DevOps: Server and configuration management for PDF

By Jeff Geerling

ISBN-10: 098639341X

ISBN-13: 9780986393419

Covers Ansible 2.0!

Ansible is an easy, yet strong, server and configuration administration instrument (with a couple of different tips up its sleeve). This ebook is helping these acquainted with the command line and simple shell scripting commence utilizing Ansible to provision and deal with anyplace from one to hundreds of thousands of servers.

The publication starts with basics, like fitting Ansible, developing a uncomplicated stock dossier, and simple strategies, then publications you thru Ansible's many makes use of, together with ad-hoc instructions, simple and complex playbooks, program deployments, multiple-provider server provisioning, or even Docker orchestration! every little thing is defined with pertinent real-world examples, frequently utilizing Vagrant-managed digital machines.

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Extra resources for Ansible for DevOps: Server and configuration management for humans

Sample text

In the past decade, test-driven development (TDD), in one form or another, has become the norm for much of the software industry. Infrastructure development hasn’t been as organized until recently, and best practices dictate that infrastructure (which is becoming more and more important to the software that runs on it) should be thoroughly tested as well. Changes to software are tested either manually or in some automated fashion; there are now systems that integrate both with Ansible and with other deployment and configuration management tools, to allow some amount of infrastructure testing as well.

In this example, we’ll use Vagrant’s powerful multi-machine management features. Chapter 3 - Ad-Hoc Commands 19 Three servers: two application, one database. We’re going to manage three VMs: two app servers and a database server. Many simple web applications and websites have a similar architecture, and even though this may not reflect the vast realm of infrastructure combinations that exist, it will be enough to highlight Ansible’s server management abilities. To begin, create a new folder somewhere on your local drive (I like using ∼/VMs/[dir]), and create a new blank file named Vagrantfile (this is how we describe our virtual machines to Vagrant).

Com | success >>, then the result of your ping. If it didn’t work, run the command again with -vvvv on the end to see verbose output. com and that works, the above Ansible command should work, too. g. com and don’t have to type a password). If you’re still logging into your remote servers with a username and password, or if you need a primer on Linux remote authentication and security best practices, please read Chapter 10 - Server Security and Ansible. If you insist on using passwords, add the --ask-pass (-k) flag to Ansible commands (you may also need to install the sshpass package for this to work).

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Ansible for DevOps: Server and configuration management for humans by Jeff Geerling


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