{"id":"kubernetes-695b8d535971","seq":2517,"kind":"release","title":"Building a Custom Metrics Exporter for Kubernetes","url":"https://kubernetes.io/blog/2026/07/14/custom-metrics-exporter-kubernetes/","permalink":"https://vulnpulse.app/items/kubernetes-695b8d535971","summary":"Kubernetes ships with built-in awareness of CPU and memory, but most real-world scaling decisions depend on signals that live entirely outside that narrow window: how many messages are waiting in a queue, how long the last batch job took, how many active WebSocket connections a pod is holding. When the built-in metrics are not enough, a metrics exporter bridges that gap. This post walks through writing one from scratch, packaging it as a container, and wiring it into a cluster so that Prometheus — and ultimately the HorizontalPodAutoscaler — can consume it. What a metrics exporter actually do…","severity":null,"techs":["kubernetes"],"cves":[],"tags":[],"source":{"id":"kubernetes","name":"Kubernetes Blog"},"published_at":"2026-07-14T18:00:00.000Z","fetched_at":"2026-10-21T16:17:46.867Z"}