@Henrycloud

Prometheus Deep Dive — Alerts, Debugging, and What

Mar 30 · 9 min read · 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

Observability Customisation

Mar 26 · 6 min read · 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

Building Your Own Virtual Private Cloud (VPC) on Linux

Nov 12, 2025 · 6 min read · 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...

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

Oct 24, 2025 · 14 min read · 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...

How to Build and Configure a Linux AMI for AWS Marketplace

Sep 23, 2025 · 7 min read · 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...