A deep dive into building a fully automated local Kubernetes cluster with Terraform and QEMU/KVM. One command provisions 3 VMs, installs Kubernetes via kubeadm, deploys Calico CNI, and joins workers automatically (no manual SSH required). Includes a detailed breakdown of the Terraform libvirt provider 0.8→0.9 rewrite and what breaking schema changes mean for your infrastructure code.
A complete guide to removing leaked AWS API keys, passwords, and sensitive data from your entire Git history using git filter-repo text replacement.
Automating social media preview images (Open Graph) using SVGs is incredibly powerful. But when I tried to automate SVG-to-WebP conversions on my Linux server, I discovered that standard command-line tools like Inkscape and ImageMagick handle browser-oriented SVGs very differently from Chrome.
SVGs break Open Graph social previews on LinkedIn, Twitter, and WhatsApp. Here is the exact engineering solution I built to serve crisp SVGs on-site while feeding lightweight WebP images to social media scrapers.
I ran git submodule update --remote --merge and nothing happened. My Hugo theme was stuck at an old version. Turns out I had accidentally replaced the submodule with manually copied files without realizing it. Here’s how I diagnosed the git state mismatch, restored the proper submodule, and fixed the Cloudflare Pages deployment failure that followed.
I accidentally shipped 3MB of unused screenshots to production through my Hugo blog. Deleting them wasn’t enough. They lived forever in git history. Here’s how I investigated, cleaned up, and verified the purge using git filter-repo.
Virt-Manager’s UI for duplicating virtual disks can be confusing. This bite-sized guide shows you exactly how to use Storage Pools and Backing Stores to create space-saving linked clones without ever touching the terminal.
Run the official Amazon Linux 2023 QCOW2 image locally on QEMU/KVM with Virt-Manager. Covers Cloud-Init seed ISO creation, SSH key setup, and an 8-test deep dive into the password locking behavior that most guides get wrong. The Cloud-Init concepts apply to VirtualBox, VMware, and Hyper-V too.
My Linux desktop dropped to tty1 with no GUI. LightDM was failing, but the real culprit was a 100% full root disk. Here’s exactly how I diagnosed it from the terminal and brought the system back — step by step.
A step-by-step guide to building a custom Coral source spec that turns any internal REST API into a queryable SQL table — no SDK, no glue code, just one YAML file.
