Posts
All the articles I've posted.
KEDA: event-driven autoscaling, all the way to zero
KEDA scales pods by queue depth, a metric, or a schedule — not just CPU/RAM — and can scale all the way down to zero. ScaledObject, scalers for Kafka/RabbitMQ/Prometheus/cron, and the polling interval, activation-vs-scaling threshold, and cooldown gotchas.
OpenTofu: state encryption and leaving Terraform without drama
OpenTofu encrypts state and plan client-side, before the backend ever sees them — a feature Terraform still doesn't have. We cover migration, key providers (PBKDF2, AWS/GCP KMS, OpenBao), and why backend encryption isn't the same thing.
Istio ambient: a service mesh without sidecars
Istio's ambient mode reached GA and removes the main argument against service mesh — a sidecar in every pod. We cover the ztunnel + waypoint architecture, mTLS without restarts, and rolling out L7 only where it's needed.
Karpenter: just-in-time nodes and half the cluster bill
Cluster Autoscaler scales pre-sized node groups, Karpenter picks the right instance for the actual pending pods and collapses the cluster when idle. NodePool/NodeClass, consolidation, spot fallback, and the traps that block it — with a working manifest.