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Notes from running platforms
Engineering handbooks and blog posts on platform engineering, Kubernetes, infrastructure and Linux.
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Posts
Cgroups: A Deep Dive into Resource Management in Kubernetes
What actually happens when you set CPU and memory requests and limits. I explain it from zero with hand-drawn sketches, plus a small lab so you can watch every step happen on your own laptop.
Apache Log Parser With Python
A Python command-line tool that reports the most common visitor IPs, HTTP methods, URLs and status codes from web server logs.
What happens internally when we type the ls -l command in the shell?
How the shell tokenizes the input, resolves aliases and built-ins, searches PATH, then forks a child process to run the command.
Automating Cloud Infrastructure with Terraform Cloud: A Deep Dive into its Capabilities
Shared state, controlled runs and VCS-driven workflows, with a GitHub-connected workspace walkthrough and production recommendations.
Maximizing Cost-Efficiency with Karpenter: Setting Up EKS Cluster (v1.24) on Spot Instances
An EKS cluster that uses Karpenter to launch cheaper spot capacity on demand, with an ALB ingress controller, the EBS CSI driver and add-ons, all built with Terraform and Terraform Cloud.
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