What I Learned Studying EKS Cluster Upgrades (Beyond Just "Click Upgrade")
I'm fairly new to SRE/DevOps, and one of the topics I recently spent time studying properly was EKS cluster upgrades . My first instinct, like most…
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AWS & SRE Field Manual (Part 1): Zero-Trust Identity & Access Management (IAM)
📌 TL;DR & Problem Statement Definition: The centralized security control plane that manages authentication and authorization across all AWS clou…
Pure JAX on G5g: Serving Gemma 4 on Graviton and a T4G
This article provides a step by step deployment guide for serving Google's Gemma 4 on an AWS EC2 G5g instance using pure JAX. The code is here: gith…
AI Harness: the worst and the best buzzword in the industry
--- title : " AI Harness: the worst and the best buzzword in the industry" published : false tags : [ ai , harness , middleware , finops , aws , bed…
Bedrock Guardrails Blocked My RAG Bot's Own Questions: Denied Topics and Contextual Grounding Tested
By Tim O. I am studying for the AWS Certified AI Practitioner exam, and I wanted something to build rather than another set of flashcards. The 2026…
I got tired of surprise AWS bills, so I open-sourced a Multi-Cloud FinOps Engine.
Let's be honest. Cloud billing is broken. If you're running an engineering team across AWS, GCP, and Azure , trying to figure out exactly what's cos…
How a Strands agent took Claude Opus 5 from 30% to 99.95% on ARC-AGI-3
AI’s most fervent and optimistic promoters promise a future where AI is innovating its way out of society’s biggest problems. AI systems will conduc…
An AWS Access Key Can Outlive the Workload That Needed It
An AWS IAM user access key does not expire because nobody uses it anymore. It remains valid until someone explicitly deactivates or deletes it. That…
Cutting Cloud Costs with a Few Habits
The Silent Budget Killer Cloud bills sneak up on you. One month you're paying $50, the next it's $500. The worst part? Most of that money goes to re…
AWS VPC Networking Fundamentals: VPCs, Subnets, CIDR, Route Tables, IGW, and NAT Gateways
If you've provisioned a VPC from a Terraform module without fully internalising what each piece is doing, that's fine — right up until something bre…
The LCU Trap: Why Your Load Balancer Bill Has Nothing To Do With Bandwidth
` Most engineers assume load balancer costs scale with throughput: "We push 2 Gbps, so our bill should reflect 2 Gbps." That intuition is wrong. AWS…
Four Failures I Kept Repeating on AWS Amplify — Full env Replacement, Green Build but 500 at Runtime, Silent Outages, Domain Migration
From April to July 2026, I ran several Next.js products on AWS Amplify Hosting (AWS's managed service for hosting and deploying web apps). This arti…
Build an MCP Server in Go (Part 3): How IRSA and EKS Pod Identity Actually Work
Everything the MCP server could check through Part 2 lives inside the cluster. But "my pod can't reach S3" is very often not a Kubernetes problem at…
Setting Up Jenkins AWS OIDC Authentication to Replace Static Keys
Originally published on kuryzhev.cloud Every static AWS key sitting in your Jenkins credential store is a standing invitation. It works from anywher…
I audited Prowler's 48 IAM checks against a linter I built, and found a real gap
A few weeks ago I was prepping for a Cloud Security Engineer interview and built a small exercise: a Python function that scans an AWS IAM policy do…
Zero-Copy, Multi-Protocol Storage: The Architecture Pattern Data Pipelines Are Missing
Every cloud architecture diagram you've ever drawn for a "modernize the legacy system" project probably has the same box in it: a sync job. Somethin…
Blue-green deployment that left the old environment running for weeks, doubling infrastructure cost
The deploy worked. The bill doubled. The blue-green cutover went perfectly. Traffic shifted to green, health checks passed, the team signed off, and…
Day 32: Rebase Replays Your Commits, and a Restore Inherits Everything You Don't Override
Today's two tasks are both about a new base. A feature branch that needs to sit on top of a master that has moved. A database instance that needs to…
I broke my own AWS infrastructure… without touching the infrastructure.
I had an EC2 instance running an application. Everything looked fine. Then I changed one Security Group rule . Suddenly… the application couldn't re…
Our ECS Fargate Task Was Silently Failing for Days — Here's Exactly How We Found It
Our ECS Fargate Task Was Silently Failing for Days — Here's Exactly How We Found It No alarm fired. No Slack alert. No PagerDuty page. Just a servic…
AWS Serverless Weather Data Pipeline
Building a Serverless Weather Pipeline on AWS: A Step-by-Step Walkthrough This is a build log for someone who's used AWS a bit — deployed a Lambda f…
Cloud Computing for Beginners: Multi-Cloud, Community Cloud & AWS
Cloud Computing for Beginners: Multi-Cloud, Community Cloud & AWS Cloud computing has changed how organizations build, deploy, and scale applica…
What Bedrock AgentCore Actually Puts on Your A2A Agent Card
This article provides a step by step look at the A2A agent card a Strands agent publishes on Amazon Bedrock AgentCore Runtime, and how it compares f…
Build a Full-Stack Music Station with OpenRouter, Amazon Bedrock, and Nuxt
Have you ever been coding and then gotten into that flow state? You know where hours pass by , and it feels to you it's only ben a few minutes? Me t…
Multi-tenant Angular deployments: CloudFront vs Cloudflare Pages
The decision is not CloudFront versus Cloudflare Pages The real decision is what must be isolated per tenant . One Angular build can serve several h…
AWS in 2026: The Cloud Skills Every Developer Should Master ☁️🚀
The way we build software has completely changed. A few years ago, deploying an application often meant: Buy a server → Configure it → Install softw…
Building a Modern Data Lakehouse on AWS: S3, Iceberg, Glue, Athena, and Lake Formation
The data lakehouse has become the default architecture for analytics on AWS in 2026. It combines the best of both worlds: the low-cost, schema-flexi…
DevOps Lab: CI/CD Deployment to AWS ECS
Scenario You are the DevOps Engineer . Jules is your Software Developer . Ask Jules to create a professional website for a product of your choice. J…
AWS AgentCore Cloud Migration: Multi-Agent Orchestration for Infrastructure-as-Code Generation
AWS Professional Services just published production data on a multi-agent system that compresses infrastructure-as-code development from weeks to mi…
Your retry logic is correct and does nothing
A comment on one of my posts sat open as an issue for two weeks before I understood how bad the thing it described actually was. The post was about…