A practical reference library for DevOps engineers and system administrators. These guides cover the tools, commands, and infrastructure patterns used in real-world cloud environments — from day-to-day CLI workflows to full Kubernetes deployments on AWS.
Reference Sheets
DevOps Cheat Sheet
A consolidated quick-reference for the most commonly used DevOps commands, tools, and patterns. Covers Linux, Docker, Kubernetes, AWS CLI, and more — everything you need accessible in one place.
Git Cheat Sheet
Essential Git commands for daily development workflows. Covers setup, staging, branching, merging, remote operations, history inspection, stash, and .gitignore — organized for fast lookup.
Git Merge Strategy
A structured branching and merge model for teams running dev, staging, and production environments. Reduces deployment risk and keeps your release pipeline clean and predictable.
Bashrc Cheat Sheet
Shell configuration tips, useful aliases, functions, and productivity shortcuts for your .bashrc or .zshrc. Small changes that make a big difference in daily terminal work.
AWS Guides
Installing Certbot on an AWS AMI Instance
Step-by-step guide for setting up free SSL/TLS certificates via Let’s Encrypt on an Amazon Linux EC2 instance. Automate cert renewals so your sites stay secure without manual intervention.
How to Build a Simple AWS CI/CD Pipeline with AWS CLI
A beginner-friendly walkthrough for standing up a basic CI/CD pipeline entirely from the AWS CLI. Covers CodePipeline, CodeBuild, and S3 artifact storage — no console clicking required.
Blue/Green AWS CI/CD Pipeline with AWS CLI
An advanced pipeline guide implementing a true blue/green deployment strategy with separate staging and production environments. Minimize downtime and roll back instantly if something goes wrong.
Infrastructure Deep Dives
How to Build a Service with Private VPC, Subnets, Kubernetes Cluster & Elastic File Server
A comprehensive end-to-end guide for building a production-grade AWS infrastructure stack from scratch. Covers VPC design, private subnet segmentation, EKS cluster setup, and shared storage with EFS — fully integrated and production-ready.