Book Image

Mastering Python Networking - Fourth Edition

By : Eric Chou
Book Image

Mastering Python Networking - Fourth 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, Fourth edition, you'll embark on a Python-based journey to transition from a traditional network engineer to a network developer ready for the next generation of networks. This new edition is completely revised and updated to work with the latest Python features and DevOps frameworks. In addition to new chapters on introducing Docker containers and Python 3 Async IO for network engineers, 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 AWS and Azure cloud networking. You will use Git for code management, GitLab for continuous integration, and Python-based testing tools to verify your network.
Table of Contents (19 chapters)
17
Other Books You May Enjoy
18
Index

More Ansible Network Examples

Our first Ansible network example took us from noob to running our first useful network automation task. Let’s try to build from the foundation and learn more features.

We will begin by see how we can build an inventory file that includes all of our network devices. If you recall, we have two data centers, each with core and edge devices:

Figure 5: Full Lab Topology

In this example, we will include all of the devices in our inventory file.

Inventory Nesting

We can build a inventory file that includes nesting. For example, we can put together a host file named ‘hosts_full’ that includes children from one group to another:

[lax_cor_devices]
lax-cor-r1
[lax_edg_devices]
lax-edg-r1
lax-edg-r2
[nyc_cor_devices]
nyc-cor-r1
[nyc_edg_devices]
nyc-edg-r1
nyc-edg-r2
[lax_dc:children]
lax_cor_devices
lax_edg_devices
[nyc_dc:children]
nyc_cor_devices
nyc_edg_devices
[ios_devices:children]
lax_edg_devices
nyc_edg_devices
[nxos_devices:children...