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Self-Hosted Databricks Alternative: Homelab Data Lakehouse (AI/ML Data Factory)
Self-Hosted Databricks Alternative: Homelab Data Lakehouse Part of the homelab build series. Trino, Apache Iceberg, Project Nessie, dbt, Spark, MLfl…
Horizontal Scaling Series — Part 1: MinIO and Shared Object Storage
When we horizontally scale an application, adding more instances is only part of the solution. We also need to consider where the application stores…
Daily Dose of DevOps — Kubernetes observability: for regulated workloads
Kubernetes observability: for regulated workloads Scale converts an informal convention into an outage mechanism. For kubernetes observability for r…
Zero-Trust Security for Sovereign AI on GPU Clusters
Generative AI has moved from experiment to everyday tooling, bringing strict data privacy concerns with it. Where does the training data live? Who c…
Google Built It. I Ran It on AWS.
The agent runtime is more portable than you think — mostly. Last week I got Google's Agent Substrate running on Amazon EKS, with S3 snapshots, RDS s…
Упрощение миграции потребителей между HighLoad кластерами k8s/openshift с использованием Istio
Данная статья не претендует на какую-либо техническую глубину, и лишь призвана немного помочь коллегам, регулярно сталкивающимся с необходимостью вы…
The GitOps Bridge: Keep Terraform and ArgoCD Out of Each Other's Way
Two tools, two clocks. Terraform provisions the cluster, the node groups, the networking, the IAM. It changes rarely and under heavy approval. ArgoC…
ImagePullBackOff: How to Fix It Step by Step
ImagePullBackOff means Kubernetes tried to pull your container image, failed, and is now retrying with exponential backoff. The pod will never start…
WEEKEND HOMEWORK — DEVOPS FOUNDATION + KUBERNETES
This homework is not about memorizing definitions . Your task is to prove that you understand where everything lives, what each component does, and…
Kubernetes OOMKilled & CrashLoopBackOff: Deep Memory Profiling & cgroup v2 Architecture
In production Kubernetes clusters running microservices under high concurrency, few operational failures are more frustrating than sudden Exit Code…
FINAL KUBERNETES PRODUCTION CAPSTONE Dev Staging Production | Helm | Argo CD | Security | Storage | 10 Production Incidents
“I built and operated a production-style Kubernetes platform with separate dev, staging, and production environments. I deployed applications with H…
Kubernetes resource-cost estimates and a local GitOps review with kube-saver
A Kubernetes resource request reserves scheduling capacity. A low CPU reading beside a large request can be worth investigating, but it does not est…
Mount Local Storage to Kubernetes Pods: An Easy Tutorial Using K3s and the Local Path Provisioner
Originally published on mihai.ltd . Persistent storage remains one of the first hurdles engineers hit when deploying stateful applications to Kubern…
Optimizing Kubernetes Cluster Costs: Spot Instances, Autoscaling, and Resource Quotas
Introduction & Industry Context In the competitive landscape of 2026, managing cloud infrastructure is no longer merely a system engineering con…
Optimizing Kubernetes Manifest Management Across Clusters with Rancher CD and Exploring cdk8s, Pulumi, Nix
Introduction: The Challenge of Kubernetes Manifest Management Managing Kubernetes manifests across multiple clusters and environments is an inherent…
The 12 kubectl Queries We Run Before Every Cloud Cost Review
Originally published on the Professional IT Services blog . Twelve queries show what a Kubernetes cluster costs and where it wastes money: nodes and…
Addressing Uneven Kubernetes Knowledge: Deepening Critical Areas for Platform Engineering Strength
Bridging the Expertise Gap in Kubernetes and Platform Engineering Achieving mastery in Kubernetes and platform engineering demands more than broad f…
Amazon EKS: More Control Over the Kubernetes Control Plane
Introduction One of the main perks of Amazon EKS is that AWS manages the Kubernetes control plane for you. You do not have to operate components lik…
Upgrading Kubernetes v1.34.8 to v1.35: Ensuring Elasticsearch Compatibility and Stability with Minimal Downtime
Introduction Upgrading a Kubernetes cluster from v1.34.8 to v1.35 while maintaining Elasticsearch functionality in a production environment demands…
Ditching Web UIs: Building a Terminal-Native Kubernetes Monitor with Local AI
This is a submission for the Hacktoberfest Weekend Challenge: Build for a Friend What I Built I built KubeSense , a high-density, terminal-based Kub…
PostgreSQL Point-in-Time Recovery in Kubernetes: WAL-G + Stolon Pattern
PostgreSQL Point-in-Time Recovery in Kubernetes: WAL-G + Stolon Pattern We recovered a 2TB PostgreSQL database to 14:32:18 yesterday after a botched…
Karpenter Consolidation Is Not Magic: The 4 Configs That Matter
Karpenter Consolidation Isn't Magic: The 4 Configs That Matter We adopted Karpenter in March. Six months in, our cluster consolidation strategy live…
Just Add More Database Connections Is a System Design Trap
During system design interviews or production firefighting sessions, a common piece of logic always resurfaces: "If our Hibernate threads are starvi…
Scaling Your App: Horizontal vs Vertical — A Lord of the Rings Quest
The Quest Begins (The “Why”) Honestly, I remember the day our little side‑project started to feel like a dragon hoarding gold. We had a neat Express…
Cloud Infrastructure Cost Optimization: FinOps Engineering, Graviton Migrations, and Auto-Scaling
Cloud cost runaway is the silent margin killer in scaling B2B SaaS platforms. Unoptimized auto-scaling groups, over-provisioned database instances,…
How Kubernetes Actually Schedules Your Pod (and What the Network Does After)
At some point kubectl apply stops being magic and becomes a question: something decided which node runs this pod, something wired its traffic, and I…
Kubernetes in the Enterprise: Scalability, Resilience, and Release Speed Explained
Kubernetes in the Enterprise: Scalability, Resilience, and Release Speed Explained Kubernetes has become a standard platform for many teams building…
65 бесплатных уроков октября: от LLM и Kubernetes до микросервисов, Kafka и безопасности
Привет, Хабр. В этом дайджесте собрали 65 бесплатных демо-уроков по основным IT-направлениям. В программе — многопоточность, микросервисы, Kubernete…
Kubernetes Cost Optimization: Real-World Strategies That Actually Work
September 2026 | ~15 min read The $170,000 Wake-Up Call $14,200/month on EKS with 38% average utilization. We cut it to $4,180/month — a 71% reducti…