A look at the different tools that we can use to perform a differential comparison—ranging from difflib for text block comparison to the more advanced diffsync.

In my previous life as a firewall admin, I found that there were two key things to maintaining a healthy firewall ACL. First, ensure it passes the necessary traffic! Secondly, ensure that the ACL was cluttered with any unnecessary ACL entries. By making sure our ACL's were clutter-free

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When I first started in network automation, I took to Vim, vigorously writing out code. Was it clean code, easy to support and extend? Hell no! I have to admit it was damn ugly code. At the end of the day, I had just started out and was enjoying my

A guide into the world of parsing. Learn how to build your own custom parser from scratch.

Previously I shared how you can scan your Python code for security issues. However, with the increased use of containers in network automation, I wanted to also share with you a way to locally scan your Docker images for security issues/vulnerabilities using the Docker Scan feature. Docker Scan (Docker

I'm sure, by now that it's no surprise that I`m a huge fan of Batfish! More details on why here. Today I wanted to share with you one of the features that Batfish provides - route analysis. In short, Batfish allows you to model your

I want to share a recent addition to my network automation toolbox - Dq (Dictionary query). Dq is a Cisco Genie library that provides various helper functions to ease the parsing of nested Python dictionaries. For example, let's say we have the following Python dictionary. >>>

After a coffee-fuelled coding session the other day, I suddenly released that I had forgotten to commit. Therefore I had multiple changes in a single file that I needed to place into different commits. After a short bit of Googling, I found this useful little feature within VSCode called Stage