Book Image

Mastering Python Networking - Third Edition

By : Eric Chou
Book Image

Mastering Python Networking - Third Edition

By: Eric Chou

Overview of this book

Networks in your infrastructure set the foundation for how your application can be deployed, maintained, and serviced. Python is the ideal language for network engineers to explore tools that were previously available to systems engineers and application developers. In Mastering Python Networking, Third edition, you’ll embark on a Python-based journey to transition from traditional network engineers to network developers ready for the next-generation of networks. This new edition is completely revised and updated to work with Python 3. In addition to new chapters on network data analysis with ELK stack (Elasticsearch, Logstash, Kibana, and Beats) and Azure Cloud Networking, it includes updates on using newer libraries such as pyATS and Nornir, as well as Ansible 2.8. Each chapter is updated with the latest libraries with working examples to ensure compatibility and understanding of the concepts. Starting with a basic overview of Python, the book teaches you how it can interact with both legacy and API-enabled network devices. You will learn to leverage high-level Python packages and frameworks to perform network automation tasks, monitoring, management, and enhanced network security followed by Azure and AWS Cloud networking. Finally, you will use Jenkins for continuous integration as well as testing tools to verify your network.
Table of Contents (18 chapters)
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Azure virtual networks

When we wear the network engineer hat in the Azure cloud, Azure virtual networks (VNets) are where we will spend most of our time. Similar to a traditional network we would build in our data center, they are the fundamental building blocks for our private networks in Azure. We will use a VNet to allow our virtual machines to communicate with each other, with the internet, and with our on-premises network through a VPN or ExpressRoute.

Let's begin by building our first VNet using the portal. We will start by browsing to the virtual network page via Create a Resource -> Networking -> Virtual network:

Figure 12: Azure VNet

Each VNet is scoped to a single region and we can create multiple subnets per VNet. As we will see later, multiple VNets in different regions can connect to each other via VNet peering.

From the VNet creation page, we will create our first network with the following credentials:

Name: WEST-US-2_VNet_1