📰 Dev.to · david

Redis running without a PVC still has persistence enabled by default. When it can't write RDB snapshots to a read-only rootfs, it doesn't crash — it silently re

Migrating Jellyfin off k3s onto a GPU-passthrough LXC meant pointing a Service at an external IP. The EndpointSlice looked completely correct via kubectl — Serv

Most teams alert when availability drops below a threshold. Burn-rate alerting tells you how fast you're spending your error budget — so you page on trajectory,

Two Raspberry Pis run DNS for an entire network with no one watching them most of the time. A hardware watchdog, fail2ban, an additive nftables host firewall th

Multiple rounds of 'reconstruct the firewall' work each added a fresh generation of rules without removing the old one. Because RouterOS evaluates rules in orde

Most Kubernetes clusters accept any container image, any privilege level, and any resource configuration by default. Kyverno lets you enforce policies at admiss

kubectl apply succeeds, the field reverts within seconds, and there's no error anywhere. Two ArgoCD debugging patterns that hit the same homelab three times in

Deploy a production-grade monitoring stack on bare-metal k3s: Prometheus, Loki with Garage S3 storage, Promtail on edge nodes via Ansible, SNMP monitoring for M

Deploy Headscale on a bare-metal k3s cluster with Longhorn persistence, Traefik ingress, and Authelia OIDC authentication — fully GitOps-managed via ArgoCD.

How to get a real external IP on a bare-metal Kubernetes cluster using MetalLB L2 mode, and wire it up with Traefik for automatic HTTPS — fully GitOps-managed w

How to manage an entire Kubernetes homelab — MetalLB, Traefik, Longhorn, Authelia, and more — as a Git repository using ArgoCD's App-of-Apps pattern.

A deep dive into architecting a Zero-Trust Let's Encrypt automation using Terraform, Azure Private Link, and VNet Integration.

A technical deep-dive into the network security requirements of NIS2 Article 21 and how to implement them in Azure using Terraform — with concrete code, not leg

How to automate wildcard Let's Encrypt certificates on a bare-metal K3s cluster using cert-manager's DNS-01 challenge with Cloudflare — and why HTTP-01 won't wo

How to build an enterprise-grade Azure network architecture that blocks internet traffic by default and survives aggressive DeployIfNotExists (DINE) policies —

NIS2 Article 21 in Azure: Implementing Network Security Controls with Terraform Tags: terraform,...

Your Terraform pipeline is green. The deployment completes. You grab a coffee. Ten minutes later,...