Network automation and programmability is one of the hot topics in networking today. It is one area that I want to focus on this year and become very familiar with. One of the best resources that I found was the book “Network Programmability and Automation, 1st Edition” by Jason Edelman, Scott Lowe, and Matt Oswalt. Although it is only available in a pre-release (incomplete) version, if you have a Safari Books subscription I highly recommend checking it out. This book not only is extremely easy to ready, but it gives the high level ideas and theory that I feel is desperately needed for us network engineers. This whole programming idea is foreign to a lot of us, and just jumping right into coding can be a very daunting and intimidating task. This book is what gave me the clarity to feel confident enough to dive into automation.
In this blog post I will utilize a code example from the book that will allow you to automate network configuration templates. We will be using Python, Jinja2, and YAML. It is easy, low hanging fruit that will allow you to get your feet wet, and at the same time actually put this whole progamming and automation to practical use that every engineer can relate to.