DevOps & Cloud

By Prabhu Jayaseelan AWS Ambassador | 14x AWS Certified | Golden Jacket Holder | 9 min read Continue reading on Medium »

This was the second month in a row I hit the GitHub Actions minutes limit. And I'd already switched...

From someone who’s deployed both in production and paid the price of choosing wrong. Continue reading on Medium »

got paged for something flaky on a system that, turns out, only one engineer really understood, and she left like 6 months ago. spent 3 hours debugging somethin

A measured, claim-by-claim case for why discarded smartphones can replace cloud servers for bursty, latency-tolerant workloads and why Google just backed a 2,00

One of the biggest mistakes I see in cloud environments is treating observability as an afterthought. Continue reading on Medium »

How I Built a CDN SaaS in 30 Days 🚀 Building CDNZero: From Idea to Production Over the...

The Never-Ending Quest for Reliable E2E Testing As I sat in front of my computer, sipping my morning...

If your users are inside mainland China, the standard region-routing tricks fall apart. IP geolocation is unreliable behind the Great Firewall, so instead of gu

If your app only talks to AWS, LocalStack is fantastic. But the moment a service reaches into GCP or...

Multiple rounds of 'reconstruct the firewall' work each added a fresh generation of rules without removing the old one. Because RouterOS evaluates rules in orde

Most Kubernetes clusters accept any container image, any privilege level, and any resource configuration by default. Kyverno lets you enforce policies at admiss

kubectl apply succeeds, the field reverts within seconds, and there's no error anywhere. Two ArgoCD debugging patterns that hit the same homelab three times in

A practical walkthrough of the cache-aside pattern — why it exists, how to implement it, and what...

How to build security into your CI/CD pipeline without slowing down development? Continue reading on Stackademic »

Kubernetes Was Built for Scale—Not for Cost Efficiency Kubernetes has transformed the way...

SaaS finance apps know your salary, your spending, your net worth, and where you invest. That data is...

The first time someone explained DevOps to me, I had the same reaction most people do: “Wait, I already do all of that.” And that reaction… Continue reading on

A security tool should be willing to scan itself. I used the public eliottreich/taskbounty-check...

Imagine you are responsible for maintaining a website: Continue reading on Medium »

Originally published at shieldly.io/blog. Of all the IAM permissions that appear in misconfigured...

The engineering trade-offs behind a multi-tenant CI platform on AWS — ~40 teams, ~10k jobs/day, and the honest cost of each decision. Continue reading on Medium

Hey developers, ever feel like you're constantly chasing productivity hacks, only to find yourself...

AWS Systems Manager Parameter Store is regional by design. If you create a parameter in ap-south-1,...

Hey everyone, Senior DevOps engineer at a mid-sized e-commerce company in India here. We’re currently planning a complete overhaul of our observability stack. W

You've probably had this incident. Dashboards are all green. CPU is fine. Memory looks good. Pods...

What the Kubernetes and Cloud Native Associate (KCNA) covers, the core concepts to know, the things people mix up, and which resources are worth your time.

Tired of hunting through old repositories to copy-paste your .pre-commit-config.yaml? I’ve built a CLI tool that automates the tedious setup of linters and form

The foundation every later AI observability setup builds on. Continue reading on Medium »

I recently tried deploying a remote Model Context Protocol (MCP) server to Google Cloud Run so I could connect it to Cursor from anywhere… Continue reading on M

Everything you need to know that can crash your application but not by a code change - A lot of stuff can happen. Read for all insides! Continue reading on Medi

After hitting a sitemap _redirects bug and a Bluesky image race condition, I added three targeted smoke checks that catch silent Cloudflare Pages failures fast.

After hitting a sitemap _redirects bug and a Bluesky image race condition, I added three targeted smoke checks that catch silent Cloudflare Pages failures fast.

A real, honest deployment journey — from localhost to production. Learn how to deploy a MERN stack app on a VPS with Nginx reverse proxy… Continue reading on Me

Reliability isn’t just about code and tests, it’s about packaging services so they run anywhere. Today I containerized my FastAPI project… Continue reading on M

Reliability isn’t just about code and tests, it’s about packaging services so they run anywhere. Today I containerized my FastAPI project… Continue reading on M

₹37,500 per month. That was the SaaS bill a Jaipur-based textile exporter was paying for automating...

Last year I was paying $89/month for cloud services I didn't fully control. Notion, Slack, GitHub...

lode reimplements DVC's hot path in Go with a non-negotiable invariant: byte-identical compatibility with DVC 3.x. Static binary, parallel hashing, state DB tha

If you work across a fleet of microservices, you know the morning ritual. Open the first repo, git checkout main, git pull --rebase. Next… Continue reading on M

Originally published on kuryzhev.cloud Your ArgoCD sync shows green, your Liquibase Job exited 0...

Part 5 of the “Git & Version Control Mastery” series. Most teams either have no branching strategy or a 12-step diagram nobody follows… Continue reading on Medi

A production-ready Playwright CI/CD pipeline — GitHub Actions, test sharding across machines, browser matrix, Docker for consistent environments, Slack failure

You edit a firewalld zone, run the one command you always run — sudo firewall-cmd --reload — and it...

After hitting a sitemap _redirects bug and a Bluesky image race condition, I added three targeted smoke checks that catch silent Cloudflare Pages failures fast.

Every month, somewhere, a CFO sends this message: "Our AWS bill was 30% higher. What happened?" And...

The Day We Accidentally Added Eight Minutes To Every Build A platform team I worked with...

After hitting a sitemap _redirects bug and a Bluesky image race condition, I added three targeted smoke checks that catch silent Cloudflare Pages failures fast.