Kubernetes
Environment Config Overlays for Kubernetes
One config that differs per environment is where drift starts. Base plus overlay keeps dev, staging, and prod honest without duplicating manifests.
Topic hub
Kubernetes
Cluster architecture, operators, scheduling, networking, and running stateful workloads in production without losing sleep.
9 articles
Kubernetes operations
Kubernetes
Do You Actually Need a Service Mesh?
A service mesh gives mTLS, traffic control, and observability, at real complexity cost. When a mesh is worth it, when it isn't, and the lighter alternatives.
Kubernetes
PodDisruptionBudgets That Actually Protect You
A PodDisruptionBudget keeps your service up during node drains and upgrades, but a wrong value blocks drains or protects nothing. How to set PDBs correctly.
Kubernetes
HPA on Queue Depth, Not CPU
For queue-driven workers, CPU-based autoscaling reacts too late. Scale your Kubernetes HPA on queue depth or lag instead. Why CPU lies, and how to switch.
Kubernetes
The Kubernetes Deployment Checklist
A production Kubernetes deployment checklist: resource limits, probes, rollout strategy, PodDisruptionBudgets, graceful shutdown, and the items teams skip.
Kubernetes
Cutting Kubernetes Pod Startup Time
Slow Kubernetes pod startup hurts autoscaling, deploys, and recovery. The five things that make pods slow to start and how to fix each, in priority order.
Kubernetes
K3s on Hetzner: What to Trust and Isolate
Running K3s on Hetzner is the cheapest path to real Kubernetes, but bare-metal means you own the security boundaries. What to trust, what to isolate, and how.
Kubernetes
Readiness Probes That Don't Lie
Most Kubernetes readiness probes lie: they return 200 because the process started, not because the service can serve. How to write probes that tell the truth.
Kubernetes
Kubernetes Namespace Strategy for SaaS Platforms
Kubernetes namespace strategy for SaaS: namespace-per-tenant vs cluster-per-tenant vs shared. The isolation, cost, and blast-radius tradeoffs, with a decision table.