Use Containerlab to emulate open-source routers
This post will review how the Containerlab network emulator works with the FRR open-source router.
Using the Python Rich library to display status indicators
I recently added a status indicator to my azruntime application. If users have a lot of VMs in their subscriptions, the azruntime application can take a long time to run. Users will appreciate seeing the status so they know the program is still running and is not hung up. I used the Rich library to
Install azruntime as a CLI program using pipx
azruntime, the Python program I wrote to manage virtual machines in my Azure subscriptions, is more convenient to use when run as a command from the Linux prompt instead of as a Python program in its virtual environment. You can install Python packages as command-line-programs using pipx. To make azruntime work after using pipx to
azruntime: Manage Azure Infrastructure with Python
I wrote a new Python script called azruntime. It helps me manage my Azure VMs. The script is open-source and should work for anyone who also uses the Azure CLI. azruntime is available on my azure-scripts GitHub repository. I learned a lot about the Azure Python SDK while working on the azruntime project. In this
Flask web app tutorial for network engineers
Most network engineers don’t need to create web sites but they may, like me, want to convert their existing Python command-line programs into web apps so others can use them more easily. This tutorial presents the minimum you need to know about Python, Flask, and the Bootstrap CSS framework to create a practical web app
A Python learning path for network engineers
Python programming is now a required skill for network engineers. I recorded videos of myself as I learned and practiced Python programming. I think these videos, along with the links to learning resources associated with each video’s topic, serve as a good learning guide for network engineers getting started with Python programming. This post collects
Python: The Minimum You Need to Know
Many network engineers and other professionals are transitioning their skills set to include programming and automation. Commonly, their previous programming experience comes from a few programming courses they attended in university a long time ago. I am one of those professionals and I created this Python programming guide for people like you and me. In
Fixing a Thinkpad T420 battery problem on Linux
I upgraded my T420 because Ubuntu Mate 19.10 now supports the Nvidia Optimus drivers and includes a utility that lets me switch between Intel and Nvidia graphics cards. However, the upgrade seemed to break the power management on my laptop. When running on the battery, the laptop would suddenly lose power after only 10 minutes,
Run the Antidote network emulator on KVM for better performance
Antidote is the network emulator that runs the labs on the Network Reliability Labs web site. You may install a standalone version of Antidote on your personal computer using the Vagrant virtual environment provisioning tool. In this post, I show you how to run Antidote on a Linux system with KVM, instead of VirtualBox, on