Page 2 — Technical articles on Kubernetes, K3s, and Proxmox
K3s HPA won't scale even though CPU usage looks normal. The culprit is a mismatch between Prometheus Adapter's metrics-relist-interval/metrics-max-age and the HPA sync-period. Here's the three-layer delay chain and how to diagnose it.
Which should you choose for K3s production, Kyverno or OPA Gatekeeper? We break down the real-world gap: wildcard policy overhead and measured p99 latency across replica configurations.
Migrating to Gateway API on K3s sounds simple since Traefik ships by default, but it still requires installing CRDs, rebuilding canary configs, and re-checking cert-manager wiring. A practical guide grounded in the 2026 Ingress-nginx retirement and Kubernetes 1.36.
How long does failover really take with K3s embedded etcd versus kubeadm stacked/external etcd? We examine the gap between official RTO targets and real-world recovery times, and how failure domains and node counts differ.
Enabling both HPA and VPA in Kubernetes can make two well-intentioned automations fight each other, sending autoscaling into an endless spiral. Here's why the conflict happens, and how to combine them safely with updateMode and metric separation.
K3s vs RKE2 is often reduced to a feature checklist. Using a real production migration incident, we break down CIS Hardening, HA requirements, and storage assumptions to help you choose the right distribution for production.
Is K3s really as lightweight as everyone says? We compare K3s and kubeadm-based standard Kubernetes control plane memory and CPU usage using official data and multiple independent benchmarks, and explain why the datastore choice (etcd vs SQLite) can flip the result.
KEDA and HPA aren't an either-or choice. When event-driven workloads grow on K3s/Kubernetes, here's why HPA alone hits its limits and how to decide when to add KEDA alongside it.
Building edge AI inference on K3s runs into standard Kubernetes GPU resource management (integer units, request=limit). Here's how to share one GPU across multiple models, and what to watch for with time-slicing.
Should your CI/CD build runner infrastructure run on K3s or standard Kubernetes? We compare job startup latency, Cluster Autoscaler cold starts, and the cost structures of GitLab Runner and GitHub Actions ARC to find the right selection criteria.