In this article, I would like to share my experience of creating a test libvirt environment in a Docker container. I will be covering topics such as running qemu in Docker, making unattended Ubuntu installations, stitching VM networks with container and host networks, creating disk pools, and more. So if you're curious about those things or want to know my motivation behind building such an intricate setup please read along.
A few months ago I started tinkering with OpenBSD and wrote a post about it. Now, I'd like to share how to easily run not only OpenBSD but also FreeBSD nodes in a lab environment with IaC approach.
In this post, I'd like to share why I consider OpenBSD a viable but often overlooked platform for building routers and firewalls. I tried to highlight the networking features of OpenBSD that in my opinion make this OS stand out.
Please, treat this post more as a collection of my personal notes and findings. It doesn't claim to be objective and comprehensive.
Since I embarked on the network automation journey, Python and Python-based utilities have always been the go-to tools for the job. I started, as maybe many of you, with Ansible. Then when dealing with its DSL grew more and more tiresome, I began writing my first Python code. And I was happy. I felt like I was learning something fundamental again, not just another niche technology that would never come in handy elsewhere. Although Python had some limitations in terms of portability and speed, it didn't bother me much.
In my previous post, I mentioned various tools meant to help implement code management best practices, but I didn't go into much detail about any of them. This time I'd like to focus on Commitizen which introduced me to the concept of conventional commit messages and automatic versioning.
Using templates for device configurations is a common practice and it has obvious benefits, such as speed and consistency. Working on many small Python automation projects made me think of employing the same approach. Previously I had to copy and adjust a lot of code-related things such as directory structure, poetry settings, CI/CD pipelines, etc. Templating all of this allowed me to reduce the initial scaffolding overhead to a minimum and jump straight into writing code. In this article, I want to share my experience in building such a template.
Yesterday I migrated my blog from Hugo to MkDocs static site generator, supercharged with Material for MkDocs theme. I've been a fan of the project for some time now and was super excited when the blog plugin was announced and finally released.
Have you ever faced a problem sharing your python scripts with the rest of your team? You need to ensure a lot of things for your script to run on a recipient's machine. This often involves ensuring that the Python interpreter's correct version and all the dependencies are installed among other things. To put it mildly, portability is not Python's strong suit. That's where Docker can come in handy.
This blog post moved to a dedicated section of this site.
In this post, I would like to make a quick introduction on how to make use of Cisco Support APIs. Cisco has several Data APIs which allow their partners and customers to consume a lot of different information about their products and services programmatically. Here is the list of all available Data APIs: