By Lorin Hochstein
ISBN-10: 1491915323
ISBN-13: 9781491915325
One of several configuration administration instruments on hand, Ansible has a few particular merits - it is minimum in nature, you do not need to put in whatever in your nodes, and it has a simple studying curve. This functional advisor indicates you the way to be efficient with this device speedy, even if you are a developer deploying code to creation or a approach administrator searching for a greater automation resolution. writer Lorin Hochstein indicates you the way to jot down playbooks (Ansible's configuration administration scripts), deal with distant servers, and discover the tool's genuine strength: integrated declarative modules. you will find that Ansible has the performance you would like and the simplicity you want.
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Extra info for Ansible: Up and Running: Automating Configuration Management and Deployment the Easy Way
Example text
We’ll give our Vagrant server the alias of test server. Create a file called hosts in the playbooks directory. This file will serve as the inventory file. If you’re using a Vagrant machine as your test server, your hosts file should look like Example 1-1. I’ve broken the file contents up across multiple lines so that it fits on the page, but it should be all on one line in your file, without any backslashes. Example 1-1. vagrant/machines/default/virtualbox/private_key Here we see one of the drawbacks of using Vagrant.
The dollar sign syntax has been deprecated; if you encounter it in an example playbook you find on the Internet, then you’re looking at older Ansible code. You can use all of the Jinja2 features in your templates, but we won’t cover them in detail here. Check out the Jinja2 Template Designer Documentation for more details. You probably won’t need to use those advanced templating features, though. One Jinja2 feature you probably will use with Ansible is filters; we’ll cover those in a later chapter.
We’ve also seen how to use the ansible command-line tool to perform simple tasks on a single host. However, using ansible to run commands against single hosts isn’t terribly interesting. In the next chapter, we’ll cover playbooks, where the real action is. info CHAPTER 2 Playbooks: A Beginning Most of your time in Ansible will be spent writing playbooks. A playbook is the term that Ansible uses for a configuration management script. Let’s look at an example: installing the nginx web server and configuring it for secure communication.
Ansible: Up and Running: Automating Configuration Management and Deployment the Easy Way by Lorin Hochstein
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