Book Image

Python Network Programming Techniques

By : Marcel Neidinger
Book Image

Python Network Programming Techniques

By: Marcel Neidinger

Overview of this book

Network automation offers a powerful new way of changing your infrastructure network. Gone are the days of manually logging on to different devices to type the same configuration commands over and over again. With this book, you'll find out how you can automate your network infrastructure using Python. You'll get started on your network automation journey with a hands-on introduction to the network programming basics to complement your infrastructure knowledge. You'll learn how to tackle different aspects of network automation using Python programming and a variety of open source libraries. In the book, you'll learn everything from templating, testing, and deploying your configuration on a device-by-device basis to using high-level REST APIs to manage your cloud-based infrastructure. Finally, you'll see how to automate network security with Cisco’s Firepower APIs. By the end of this Python network programming book, you'll have not only gained a holistic overview of the different methods to automate the configuration and maintenance of network devices, but also learned how to automate simple to complex networking tasks and overcome common network programming challenges.
Table of Contents (14 chapters)

Subnetting your VPC

VPCs already separate your resources in the cloud into logical and separated blocks but, within your VPC, you can have an additional separation in the form of subnets. Subnets allow you to further specify the routing and accessibility of your EC2 resources.

In this recipe, you are going to learn how to create a VPC and, in that newly created VPC, create a new subnet. Within this subnet, you'll then create an EC2 instance.

Getting ready

Open your code editor and start by creating a file called subnet_vpc.py. Next, navigate your terminal to the same directory that you just created the subnet_vpc.py file in.

You'll have to have the same authentication that you set up in the Setting up the library to interact with your AWS account recipe.

Additionally, you will need a previously set up SSH key pair. This is not the key pair that we used for authenticating to the API, but rather an SSH key that can be used to log into the instance itself via...