Kubernetes Graceful Shutdown and PodDisruptionBudgets: Why Rollouts Still Drop Requests
Kubernetes graceful shutdown explained: SIGTERM, preStop hooks, endpoint propagation races, terminationGracePeriod, PodDisruptionBudgets and readiness.
Kubernetes ValidatingAdmissionPolicy and CEL: Admission Control Without Webhooks
Kubernetes ValidatingAdmissionPolicy explained: CEL expressions, bindings, parameters, audit and warn actions, MutatingAdmissionPolicy status and when to.
Istio 1.31 Explained: What Changed and How to Upgrade Your Service Mesh
Istio 1.31 explained: ambient mesh changes, deprecations and upgrade notes, plus a safe revision-based canary upgrade plan for sidecar or ambient mode.
OpenTelemetry Kubernetes Attributes Processor v1.0: Migration Guide
The k8sattributes processor hit v1.0.0 on Sept 16, 2026 with stable semantic conventions v1.42. Breaking changes, config migration, and rollout plan.
eBPF for Kubernetes Observability: An Architecture Decision Record
ADR on replacing APM agents with eBPF for Kubernetes observability: coverage, overhead, limits, OpenTelemetry eBPF instrumentation, decision guide.
llm-d on Kubernetes: Prefill/Decode Disaggregation for LLM Inference
llm-d explained: disaggregated prefill and decode, KV-cache-aware routing and vLLM on Kubernetes, with cost math, an install path and where it beats a plain vLLM deployment.
Istio Ambient Multicluster and Gateway API Inference Extension for LLM Serving
How Istio ambient multicluster and the Gateway API Inference Extension route LLM traffic by KV-cache and queue depth, with a reference architecture and failure modes.
Argo CD 3.x Upgrade Guide: What Changed vs v2 for Production
A production upgrade guide from Argo CD v2 to 3.x: RBAC and logs defaults, annotation tracking, ApplicationSet changes, sharding and a rollback-safe rollout plan.
Karmada Graduates: A Multi-Cluster K8s ADR
Karmada graduated CNCF on Sept 8, 2026. We break down v1.19's priority scheduling and memory fixes, plus when to pair it with Cluster API in production.
Helm 4.3 vs Helm 3.22: Migrating Before Helm 3 EOL
Helm 4.3 shipped Sept 2026 and Helm 3.22 is the last v3 minor. Compare flags, server-side apply, post-renderer plugins and plan migration before Feb 2027.