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Enable SSM on eks nodes

Ashwini Gaddagi

Ashwini Gaddagi

Jan 8, 2022
k8s_terraform_metrics/templates/ssm.tf at main · ashwiniag/k8s_terraform_metrics
Terraform + K8s + Vicoriametrics + Kube-state-metrics + Prometheus operator - ashwiniag/k8s_terraform_metrics
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Virtual 1D index for 2D coordinates

Understanding Virtual 1D index → 2D coordinates: How does this formula work? row = index / n col = index % n Mapping 1D to 2D Imagine you have a bookshelf with 4 shelves (rows), and each shelf holds 3 books (columns). Shelf 0: [Book0] [Book1] [Book2] Shelf 1: [Book3] [Book4] [Book5] Shelf 2: [Book6]

By Ashwini Gaddagi Sep 29, 2025

Tree Width Calculation 0 based system

I was solving the classic problem of calculating the widest binary tree level - essentially finding the maximum width of in the tree. I had doubts around how left and right indices of nodes is calulated because I thought we use the standard formulas for calculating indices: left := 2i + 1

By Ashwini Gaddagi Aug 25, 2025

ping vs nslookup?

Why nslookup works but ping says “Name or service not known”? Let’s get basic terminology straight up — and it’s assumed you already understand how DNS resolution works. In my quest to understand how tools like nslookup and ping behave differently, I was honestly confused by the terms DNS

By Ashwini Gaddagi Jul 8, 2025

How Does DNS Work? — A Semi-Comical Flow

In my experience, I've revisited this topic multiple times — and every single time, I’ve learned something new. So here’s a simple visual walkthrough for those who want to understand what really happens when you type a domain name into your browser. We’ll break this into

By Ashwini Gaddagi Jul 8, 2025
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