Book Image

Network Automation Cookbook

By : Karim Okasha
Book Image

Network Automation Cookbook

By: Karim Okasha

Overview of this book

Network Automation Cookbook is designed to help system administrators, network engineers, and infrastructure automation engineers to centrally manage switches, routers, and other devices in their organization's network. This book will help you gain hands-on experience in automating enterprise networks and take you through core network automation techniques using the latest version of Ansible and Python. With the help of practical recipes, you'll learn how to build a network infrastructure that can be easily managed and updated as it scales through a large number of devices. You'll also cover topics related to security automation and get to grips with essential techniques to maintain network robustness. As you make progress, the book will show you how to automate networks on public cloud providers such as AWS, Google Cloud Platform, and Azure. Finally, you will get up and running with Ansible 2.9 and discover troubleshooting techniques and network automation best practices. By the end of this book, you'll be able to use Ansible to automate modern network devices and integrate third-party tools such as NAPALM, NetBox, and Batfish easily to build robust network automation solutions.
Table of Contents (15 chapters)

Using Ansible's filters

Ansible's filters are mainly derived from Jinja2 filters, and all Ansible filters are used to transform and manipulate data (Ansible's variables). In addition to Jinja2 filters, Ansible implements its own filters to augment Jinja2 filters, while also allowing users to define their own custom filters. In this recipe, we will outline how to configure and use Ansible filters to manipulate our input data.

How to do it...

  1. Install python3-pip and Python's netaddr library, since we will be using the Ansible IP filter, which requires Python's netaddr library:
# On ubuntu
$ sudo apt-get install python3-pip

# On CentOS
$ sudo yum install python3-pip

$ pip3 install netaddr
  1. Create a new...