Self-hosted blockchain node: DIY vs Chainstack Self-Hosted
Getting a blockchain node running isn't the hard part. The hard part is everything that comes after — keeping it synchronized, updated, monitored, and…
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Tips for passing CKAD exam at 1st attempt (2026 Edition)
How it all started Last year we got news: our new client would be using Kubernetes extensively. I was both excited and scared, as I had only limited e…
Разработка под Kubernetes: локально всё работает, в проде — нет. Кейс с Tetragon и eBPF
Локально всё работает идеально: политики ловят нарушения, логи пишутся, система стабильна. В проде Kubernetes-кластера — теряются события, появляются …
Как развернуть приложение в кластере Managed Kubernetes на выделенном сервере
Всем привет! С Вами на связи Евгений Листраткин, ведущий инженер команды администрирования клиентских сервисов . Мы предоставляем услуги DevOps as a S…
Kubernetes Services & Networking — My Week 15 Hands-On Journey (ClusterIP, NodePort, LoadBalancer)
If you’ve ever deployed an app on Kubernetes and thought : “Okay… my Pods are running, but how do I actually reach them?” Then you’re exactly where I …
От MinIO к SeaweedFS: опыт замены S3-хранилища
Есть такой опасный момент в инфраструктуре: когда все вроде бы работает, но трогать это лишний раз не хочется. Не потому что идеально. А потому что ес…
Why Coding Agents Will Break Your CI/CD Pipeline (and How To Fix It)
Read this article on Signadot . Every engineering leader I speak with lately is quietly asking the exact same question. The conversation has shifted e…
GKE Gateway API: Full Setup & Troubleshooting Runbook
I recently went through the full process of setting up GKE Gateway API on a production-grade cluster — Fleet registration, controller enablement, Helm…
One Platform to Call, Deploy, and Fine-tune Every AI Model You Need
Today’s AI development is a logistical nightmare. The Developer Team always has to integrate with different model providers—each with its own API keys…
🚀 How to deploy flask app kubernetes helm — the right way
🔥 The First Time I Tried to Deploy a Flask App on Kubernetes Using Helm… 2 AM. Red eyes. Cold chai. Terminal full of CrashLoopBackOff logs. 📑 Table of…
The Spot Instance That Killed Our Payments Service (And Why It Took Us 47 Minutes to Find It)
It started at 1:49 AM. PagerDuty fired — payments-service entering CrashLoopBackOff, 3 replicas simultaneously. On-call engineer paged. I joined the i…
Stop Learning Docker for Dummies. Learn It Like a DevOps Engineer
Most Docker tutorials teach you commands. Not how Docker actually works in real systems. That's why people can run docker run but freeze when asked to…
Why We Moved from GKE to EKS
Why We Moved from GKE to EKS When we initially adopted Kubernetes, Google Kubernetes Engine (GKE) Autopilot seemed like the perfect choice — fully man…
Code In, Cluster Out: Building Reproducible Edge Kubernetes with NixOS, K3s, and Forgejo
What if your entire Kubernetes edge cluster, from the kernel to the workload, was a single reproducible function? No drift. No snowflakes. No, "this n…
[EN] Best Practices for Managing Secrets in Kubernetes
Managing secrets in Kubernetes requires careful attention. The default implementation has significant security limitations. Encoding secrets in base64…
Learn Kubernetes the Manga Way
Do you want to learn Kubernetes in a fun way? I wrote a manga (comic book) about Kubernetes back in 2019 — in Japanese. Recently, I gave a talk at Kub…
Layers Made It Universal. Harnesses Made It Run
A continuation of Flip the Axis: A Layer-Based Approach to Multi-Service Migrations . TL;DR You can't script your way across a fleet of snowflake repo…
Flip the Axis: A Layer-Based Approach to Multi-Service Migrations
TL;DR When you're migrating many services through the same steps, parallelize by step, not by service. Sweep one type of change across all services, t…
Kubernetes v1.36 "Haru" overview
Released April 22, 2026. Kubernetes v1.36, just released on April 22, 2026, brings a wide set of improvements that feel less like experimentation and …
Kubernetes Building Blocks(1)
Introduction If you liken Kubernetes to an ocean, those individual drops that make up the ocean are the core building blocks: Namespaces , Pods , Repl…
cert-manager + Cloudflare DNS-01: Automated TLS for Everything
I spent two days chasing a cert-manager error that looked like it was coming from the future. The message was clean: Error: failed to solve challenge:…
We ran Qwen3.6-27B on $800 of consumer GPUs, day one: llama.cpp vs vLLM
Originally published at llmkube.com/blog/qwen3-6-27b-bakeoff . Cross-posted here for the dev.to audience. A Kubernetes-native bake-off on 2× RTX 5060 …
GitOps Deployment for Kubernetes Teams
TLDR ; GitOps uses Git as the single source of truth for infrastructure, enabling auditable and repeatable deployments ArgoCD and Flux are the two lea…
Обзор релиза Kubernetes 1.36: перестаём пересобирать образы, чистим «зомби» PVC и читаем логи без SSH. Разбор 68 фич
Вышел Kubernetes 1.36 — релиз, который наконец-то закрывает старые боли админов и разработчиков. Больше не нужно пересобирать образы ради одного сигна…
Building an IPC bus for Kubernetes sidecars: WAL, DLQ, and ring-buffer backpressure
If you put two sidecars in a pod and ask them to talk to each other over HTTP, sooner or later one of them crashes mid-request and you lose a message.…
OpenTelemetry eBPF Instrumentation (OBI) — The Complete Guide: KubeCon EU 2026 Beta Launch, Zero-Code Observability, and the 1.0 GA Roadmap
OpenTelemetry eBPF Instrumentation (OBI) — The Complete Guide: KubeCon EU 2026 Beta Launch, Zero-Code Observability, and the 1.0 GA Roadmap Published …
SealedSecrets Key Backup: Don't Lose Your Encryption Keys
I lost access to a SealedSecrets key once , not because I deleted it, but because I didn't know where it was stored. The cluster kept running, the app…
Reading a Kubernetes bill: what each line item actually means
The bill arrived on a Tuesday, up 38% on last month, and finance wanted to know why by Friday. The attachment was 2,400 lines of m5.2xlarge , persiste…
GitOps for Infrastructure: How We Deploy With Zero SSH
The Last Time I Used SSH I haven't SSH'd into a production server in 14 months. Not because I'm lazy because our infrastructure doesn't require it. Gi…
EP2: Mapping the Labyrinth: How Coolify Deploys Your Apps (and Why K8s Fits)
If you missed Episode 1 , we established the goal: Investigate whether native Kubernetes support in Coolify is actually impossible. Now, the investiga…