kubernetes-sigs/prometheus-adapter

Health v2 · maintenance only

Adoption not part of the score

2090 stars · 570 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Kubernetes API adapter that implements the custom.metrics.k8s.io, resource, and external metrics APIs backed by Prometheus queries. It enables Horizontal Pod Autoscalers and other Kubernetes components to scale based on arbitrary Prometheus metrics.

Use cases

• autoscale kubernetes pods based on custom prometheus metrics
• implement custom.metrics.k8s.io api on a cluster running prometheus
• use external metrics from prometheus in hpa scaling rules
• replace metrics-server with prometheus-backed resource metrics
• query prometheus metrics through the kubernetes metrics api

When to choose

• your cluster already runs prometheus and you need custom metrics for autoscaling
• you want HPA scaling based on application-level or external metrics
• you need a Kubernetes Metrics API implementation without running metrics-server

When to avoid

• you don't use prometheus or have no metrics pipeline
• you only need basic CPU/memory metrics, which metrics-server handles more simply
• you need a general-purpose monitoring dashboard rather than a metrics API adapter

Facets

service · maturity active

monitoring api-framework middleware monitoring cloud-computing go self-hosted prometheus custom-metrics-api horizontal-pod-autoscaler kubernetes-metrics autoscaling devops containers kubernetes docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="kubernetes-sigs/prometheus-adapter")