henrycloud

Write

The Third Pillar — Distributed Traces Complete My Observability Stack (Week 6)

Jul 24, 202610 min read

My Alert Fired at 4:40am. Three Places Were Notified Before I Woke Up. (Week 5)

Jul 14, 20268 min read

I'd Never Built a VPN Before — Here's How I Got a Real WireGuard Tunnel Working in an Afternoon

If you've ever been handed a task like "go figure out a VPN for us" with zero networking background, this post is the guide I wish someone had handed me. No prior VPN knowledge assumed. By the end, yo

Aug 4, 20267 min read

I Found a Payment Failure Hidden in 600 Log Lines in 4 Seconds. Here's How. (Week 4)

Jul 1, 20267 min read

How I Built a Real-Time DDoS Detection Engine from Scratch

Apr 28, 20264 min read

Grafana Dashboards as Code

Grafana Dashboards as Code — Destroy the Container, the Dashboard Survives (Week 3) Someone commented on my last post: "Don't forget the nice gradient shade, give it some bling." Challenge accepted. B

Apr 12, 202610 min read

Prometheus Deep Dive — Alerts, Debugging, and What

Actually Happens When Things Don't Work (Week 2) Last week I spun up a working observability stack from scratch. This week I went deeper. And I hit real problems. I'm documenting both — because the de

Mar 30, 20269 min read

Observability Customisation

I Was Handed an Observability Role I Had Never Done Before.Here's What I Built in Week1. My boss sent a message on a Tuesday night. "Can you help with observability customisation?" Prometheus. Grafana

Mar 26, 20266 min read

Building Your Own Virtual Private Cloud (VPC) on Linux

Ever wondered how cloud providers like AWS create isolated networks for their customers? In this tutorial, I'll show you how to recreate the core functionality of AWS VPC using only Linux networking primitives. This is the same technology that powers...

Nov 12, 20256 min read

Building a Production-Grade Automated Deployment Pipeline: From Zero to Deployed

Introduction As a DevOps intern, I was tasked with creating an automated deployment pipeline that mirrors real world workflows. The challenge? Build a robust bash script that automates the complete deployment of a Dockerized application to a remote s...

Oct 24, 202514 min read

How to Build and Configure a Linux AMI for AWS Marketplace

When I first heard about AWS Marketplace, I thought of it as “the app store for cloud.” It’s where software vendors can publish preconfigured images, SaaS products, and machine learning models so customers can easily deploy them on AWS. One of the mo...

Sep 23, 20257 min read

Command Palette

Latest articles