Blog

How to Run LLMs on Kubernetes: GPU Setup Guide (2026)

A practical guide to deploying GPU nodes on Kubernetes, configuring the NVIDIA device plugin, sizing VRAM for LLM inference, and running vLLM or Ollama as a scalable serving stack.

Kubernetes Monitoring Stack Guide: Prometheus, Loki, Grafana, and Tempo

A complete guide to deploying the metrics, logs, traces, and dashboards stack on Kubernetes — including resource sizing, Helm configs, and alert rule generation.

CI/CD for Kubernetes with GitHub Actions: A Complete Guide (2026)

A practical walkthrough of building a full GitHub Actions pipeline that builds a container image, pushes it to a registry, and deploys to Kubernetes — with secrets handling, rollback, and Helm support.

Kubernetes Ingress Controllers in 2026: Nginx, Traefik, HAProxy, and Caddy

A technical comparison of the four most popular Kubernetes ingress controllers — what they do well, where they fall short, and which to pick for your workload.

GPU Cloud Providers for AI/ML in 2026: RunPod, Vast.ai, Lambda Labs, and More

A practical comparison of GPU cloud providers for AI/ML workloads in 2026 — pricing, availability, setup complexity, and when to self-host instead.

ArgoCD vs Flux: Choosing a GitOps Tool for Kubernetes in 2026

A no-fluff comparison of ArgoCD and Flux for GitOps on Kubernetes — covering architecture, UI, Helm support, multi-tenancy, and when to pick each one.

Hetzner vs DigitalOcean for Kubernetes in 2026: An Honest Comparison

Hetzner is 3–5× cheaper than DigitalOcean for equivalent Kubernetes compute. But DO has managed K8s, better global coverage, and a larger app marketplace. Here's when each is the right choice.

k3s in Production: Setup, Gotchas, and What Nobody Tells You

A candid guide to running k3s in production — when it's the right choice, how to set up HA with embedded etcd, what k3s removes from vanilla Kubernetes, and the operational gotchas that will surprise you.

Kubernetes Certificate Renewal: What Breaks and How to Fix It

kubeadm certificates expire after 1 year. Here's what actually breaks, how to check expiry, and the exact commands to renew before your cluster goes read-only.

Kubernetes Storage in 2026: When to Use Longhorn, Rook-Ceph, or OpenEBS

A deep dive into the three most popular self-hosted Kubernetes storage solutions — what each does well, how to install and configure Longhorn, and how to choose between them.

Kubernetes Security Hardening Checklist (2026)

A practical, numbered security hardening checklist for Kubernetes clusters — covering RBAC, network policies, pod security, secrets management, image security, and audit logging.

How to Migrate from Docker Compose to Kubernetes: A Practical Guide

A practical, hands-on guide to migrating a real multi-service Docker Compose app to Kubernetes — mapping every concept and translating YAML line by line.

How Much VRAM Do You Need to Run LLMs? A Practical Guide

Calculate exactly how much GPU memory you need to run Llama 3, Mistral, Gemma, and other LLMs at different quantization levels. FP16, INT4, GGUF explained.

How to Size Kubernetes Nodes: A Practical Framework

A practical framework for choosing Kubernetes node sizes — covering system overhead, DaemonSet tax, workload types, and the tradeoffs between few large vs many small nodes.

Longhorn vs Rook/Ceph for Kubernetes Storage: Which Should You Use?

A practical comparison of Longhorn and Rook/Ceph for self-hosted Kubernetes storage — setup complexity, resource usage, performance, and when each is the right choice.

Kubernetes RBAC Explained with Real Examples

A practical walkthrough of Kubernetes RBAC — covering Roles, ClusterRoles, bindings, and real-world patterns for read-only users, CI service accounts, and namespace admins.

Self-Hosted vs Managed Kubernetes: True Cost Breakdown (2026)

A full total-cost-of-ownership comparison between self-hosted Kubernetes on Hetzner and managed services like AWS EKS, GKE, and DigitalOcean DOKS — including engineer time.

Self-Hosted Kubernetes on Hetzner Cloud: Complete Setup Guide (2026)

A practical guide to running a production-grade HA Kubernetes cluster on Hetzner Cloud using kubeadm, HAProxy, Keepalived, and Longhorn — at a fraction of managed K8s cost.

etcd: What It Is, Why It Matters, and How to Back It Up

A practical guide to etcd in Kubernetes — what it stores, what happens when it fails, how to take and restore snapshots, and how to automate backups with a CronJob.

Kubernetes Cost Optimization: 12 Ways to Cut Your Cloud Bill

Twelve concrete techniques to reduce Kubernetes infrastructure costs — from right-sizing nodes and enabling HPA, to switching storage backends and choosing the right cloud provider.