Introduction Deploying a new version of your application in Kubernetes isn’t just kubectl apply -f. How you deploy matters as much as what you deploy. The wrong strategy can cause downtime for thousands of users. The right one can make a risky release feel invisible. With 82% of container users running Kubernetes in production, mastering deployment strategies isn’t optional — … Read more
Table of Contents 01 — What is Kubernetes & Why AWS EKS? Kubernetes (K8s) is an open-source container orchestration platform that automates deployment, scaling, and management of containerized applications. Originally built by Google in 2014, it is now used by almost every major tech company in production environments. Amazon EKS (Elastic Kubernetes Service) is AWS’s fully … Read more
A real-world guide for DevOps engineers who want zero-downtime upgrades and zero post-mortems The Story That Started This Guide The alert came in at 9:47 PM. “API server unreachable.” The on-call engineer opened his laptop to find that the cluster upgrade — which was “just a version bump from 1.27 to 1.28” — had gone completely sideways. The … Read more
Picture this: it’s a Tuesday afternoon. Your infra team is draining a node for routine maintenance. Looks straightforward. Then your monitoring goes red — every single replica of your payment service got evicted at the same time. Zero pods up. Full outage. Nobody planned for that. Nobody set any guardrails. And that’s exactly the problem … Read more
It’s 11 PM. Your deployment just went out. Slack is blowing up. You check the cluster and see it — that dreaded status: NAME READY STATUS RESTARTS AGEmy-app-7d9f8b 0/1 CrashLoopBackOff 8 12m Eight restarts. Climbing. And you have no idea why. If you’ve worked with Kubernetes for more than a week, you’ve seen this. CrashLoopBackOff … Read more
You ran kubectl apply, your terminal said “pod created,” but the app is still down. Sound familiar? I’ve been there. 2 AM. Production alert firing. Pod shows Running but requests are failing. No obvious errors. That’s when I realized — I didn’t actually understand the Pod lifecycle. I just knew enough to deploy things and pray. Once I … Read more
😅 The Night Kubernetes Just… Froze Let me tell you something that still stays with me. It wasn’t one of those loud production outages where everything turns red and alarms go crazy. It was worse. Things just quietly stopped working. We had pushed a deployment, everything in CI/CD was green, configurations looked perfect, and nothing … Read more
If you think Kubernetes scaling is just about increasing replicas when CPU spikes…you’re missing the bigger picture. As cloud workloads get heavier and real-time user demand becomes unpredictable, scaling is no longer optional — it’s a survival strategy. The difference between a reliable system and a burning one often comes down to how intelligently your … Read more
Kubernetes networking is entering a new era — and one of its oldest, most widely used components is stepping aside. For years, the open-source NGINX Ingress Controller powered traffic for countless Kubernetes clusters.It became the default choice for developers, DevOps teams, and platform engineers.If you ran Kubernetes, chances are… you deployed NGINX Ingress too. But … Read more
If you’re preparing for a DevOps or Kubernetes interview, there’s one question you simply cannot afford to get wrong: “How does a Kubernetes Ingress Controller work?” Surprisingly, many candidates misunderstand this — mainly because they lack clarity on two foundational concepts: This blog will simplify these concepts with diagrams, examples, and clear explanations. 🌐 What … Read more