OpenVEX в CI/CD: как перестать бороться с ложными CVE и научить Trivy понимать контекст
Представьте: вы пытаетесь объяснить иностранцу, почему красный сигнал светофора не всегда означает «стоять», иногда это — «можно ехать, если ты — скор…
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How Does Traffic Actually Reach Your Pods? Kubernetes Services & kube-proxy Explained
Your backend Pod just crashed. Kubernetes created a new Pod with a completely different IP address. Yet your application didn't notice anything change…
PostgreSQL on Kubernetes — Complete Setup Guide with CloudNativePG
Originally published on DevToolHub , where I keep this guide updated as CloudNativePG evolves. Running PostgreSQL in Kubernetes used to be a bad idea.…
CloudNativePG: Running PostgreSQL in Kubernetes Without the Pain
A CloudNativePG cluster that sits in Setting up primary forever, with zero error events on the Cluster resource and a perfectly healthy operator, is o…
MCP Server Architecture for Platform Teams — Giving AI Live Access to Your Infrastructure
Pipeline & Prompts | Byte size guides on DevOps, Cloud and AI AI in the Stack #3 ⚡ Byte Size Summary MCP (Model Context Protocol) is the standard …
Making a fleet of self-hosted LLM agents trustworthy
Originally published at llmkube.com/blog/making-self-hosted-llm-agents-trustworthy . Cross-posted here for the dev.to audience. Running a single local…
How to Choose the Right DevOps as a Service Provider
I've spent 25 years building, breaking, and scaling production infrastructure — long enough to watch "DevOps" go from a conference buzzword to a thing…
Supercharging Kubernetes: How eBPF is Revolutionizing SRE and Platform Engineering
The ecosystem surrounding Kubernetes has always been a rapidly moving target. Just when Site Reliability Engineers and Platform Engineers feel they ha…
When Kubernetes Isn't the Problem: Debugging External Dependencies in AKS
Introduction One of the most common mistakes during incident response is assuming Kubernetes is the problem simply because the application runs on Kub…
How I'd Pass the CKA in 12 Weeks (Performance-Based, No Multiple Choice)
The Certified Kubernetes Administrator (CKA) is not a multiple-choice exam, and that single fact changes everything about how you should prepare for i…
Commitment discounts vs spot when each saves more
Cloud teams waste between 40% and 60% of their infrastructure budget on a false choice: committing to reserved capacity they won't fully use or chasin…
⚙️ Terraform create AWS EC2 instance with Python environment
Terraform can provision an AWS EC2 instance and set up a Python virtual environment in a single, reproducible run — the whole workflow is declarative …
Kubernetes Admin Seeks to Identify Advanced Concept Gaps for Improved Cluster Management Expertise
Introduction to Advanced Kubernetes Concepts As a self-taught Kubernetes cluster administrator overseeing global, multi-cluster environments, you have…
I Built a 5-Agent AI System That Fixes Kubernetes Clusters Before Your Pager Goes Off
There's a moment every on-call engineer knows. It's 2 AM. Slack explodes. Pods are crashing in production. You SSH in half-awake, squinting at logs, t…
The AWS Charge Silently Eating Your K8s Budget: NAT Gateway Explained
You get your AWS bill. EC2 looks reasonable. RDS looks fine. Then there's a line item called "NAT Gateway" sitting at $800 and you have no idea why. T…
Introducing t4
Infrastructure systems often need a small, reliable place to keep control-plane state: configuration, service metadata, locks, leases, revision histor…
My Kubernetes Learning Roadmap: From Beginner to CKA
When I first started learning Kubernetes, the ecosystem felt overwhelming. There were so many concepts to understand: Pods Deployments Networking Stor…
CKA vs Real-World Kubernetes: What the Certification Doesn’t Teach You
When I first started preparing for the Certified Kubernetes Administrator (CKA) exam, my primary goal was simple: Pass the certification and strengthe…
Day 25 - Helm Chart
Kubernetes is powerful, but managing Kubernetes YAML files manually becomes difficult very quickly. A simple application may need: Deployment Service …
The Microservice-to-Engineer Ratio (MTR): Why Too Many Microservices Slow Down Engineering Teams
Discover the Microservice-to-Engineer Ratio (MTR), a powerful architectural metric that reveals when microservices begin hurting engineering productiv…
ChaosCLAW: Kubernetes Continuous Control Verification via Chaos
You've installed Kyverno. You've written RBAC policies. You've enabled Falco. Your security dashboard is green, your compliance team is happy, and you…
The SIGTERM our build workers ignored, and the 90s that fixed it
TL;DR: Our ECS build workers were quietly killing in-flight jobs every time we scaled in or deployed. The fix wasn't a bigger timeout, it was actually…
I built a container escape audit tool — here's what v4.0 adds
canonical_url: https://github.com/liamromanis101/K8s-container_escape_audit Container security tooling tends to fall into two camps: heavyweight scann…
What If You Need Two ArgoCD Instances in One EKS Cluster?
Most ArgoCD tutorials start the same way: Deploy ArgoCD. Connect a Git repository. Create an Application. Done. But what happens when multiple teams s…
Automate Kubernetes Image Vulnerability Scanning
Security in a cloud-native environment is only as strong as its weakest link. A recent security audit revealed a critical gap: container images were b…
Not All Open Source Is Equal: Choosing a PostgreSQL Operator for Kubernetes in 2026
Choosing an open source PostgreSQL operator for Kubernetes used to be a question about features and community size. In 2026, it has become a question …
Securing continuous delivery loops: How to verify configuration shifts locally with secure YouTube Downloader before deploying to cloud clusters
Why we must verify configuration shifts locally before cloud deployment Welcome to the modern DevOps circus. We have all been there at 3:00 AM. You pu…
Как дебажить distroless-контейнер в Kubernetes без shell: ephemeral containers на практике
В прошлой статье мы разбирали kubectl describe pod : как читать вывод, в котором Kubernetes уже часто сам написал причину проблемы — в Events, Conditi…
Kubelet Metrics: How cAdvisor and CRI Collect Kubernetes Stats
This article was originally published on LearnKube TL;DR: This article dissects the Kubernetes metrics pipeline through kubelet, cAdvisor, and CRI to …
The Day the Treasure Hunt Engine Stopped Beeping
The Problem We Were Actually Solving We werent running a treasure hunt. We were running a search service that let operators navigate through gigabytes…