A detailed case study of reducing a Kubernetes cloud bill from ¥2.03M to ¥800K annually by eliminating idle environments, right-sizing pod requests, cleaning zombie services, and adopting Spot instances, while navigating organizational resistance and balancing risk versus savings.
A mis‑timed production resource change triggered a cascading Kubernetes failure that cost $47,000, and the author details the incident timeline, mistakes made, and seven concrete operational safeguards introduced to prevent similar outages.
This tutorial walks you through enabling the In‑Place Pod Resize feature in Kubernetes 1.35, configuring Vertical Pod Autoscaler, deploying a sample NGINX workload, and verifying live resource adjustments without restarting pods, complete with commands, YAML manifests, and best‑practice tips.
The article explains the new in‑place pod resizing feature in Kubernetes, detailing its transition from Alpha to Beta, the technical mechanisms, benefits like reduced disruption and better resource utilization, stability improvements, and future integration with vertical pod autoscaling.
This article explains the fundamentals, components, workflow, configuration, best practices, and comparison with HPA for Kubernetes Vertical Pod Autoscaler (VPA), helping readers efficiently tune pod resources and improve cluster utilization.
This guide explains what Kubernetes VPA is, its architecture, version compatibility, step‑by‑step installation, certificate setup, manifest generation, practical VPA configuration, validation procedures, performance testing, and known limitations, enabling you to optimize pod resources in cloud‑native clusters.
Bilibili extended Kubernetes with a custom in‑place Vertical Pod Autoscaler framework—including generator, recommender, updater, and webhook controllers plus a management platform for strategy tuning, avoidance, analysis, and anomaly detection—reducing over‑provisioned resources across its ten‑thousand‑node private cloud and achieving up to 60 % CPU and 30 % memory savings.
