# yonahd/kor

A Golang Tool to discover unused Kubernetes Resources

Repository: https://github.com/yonahd/kor
Canonical: https://ross.abutalabs.com/products/kor
Language: Go
License: MIT
License Family: permissive
Topics: go, golang, kubernetes, resource-management, k8s
Last push: 2026-08-02T19:48:46+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 80, longevity 82
- inputs: {"age_days": 1155, "days_push": 31, "days_rel": 133, "gap_med": 10, "n_releases_24m": 30}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1814, forks 151 (observed 2026-08-28T04:05:39.788465+00:00)

## What it is
Kor is a Go CLI tool that discovers unused (orphaned) Kubernetes resources such as ConfigMaps, Secrets, Services, Roles, PVCs, and many more. It can run as a kubectl plugin, Docker container, Helm cronjob, or deployment exposing Prometheus metrics.

## Use cases
- find unused configmaps and secrets in my kubernetes cluster
- identify orphaned kubernetes resources to reduce costs
- detect unused service accounts and roles in k8s
- clean up stale deployments and statefulsets
- run periodic scans for unused kubernetes resources via cronjob
- export prometheus metrics for unused kubernetes resources

## When to choose
- you want to audit and clean up unused Kubernetes resources across many resource types
- you need scheduled scans with Slack notifications or Prometheus metrics
- you prefer a kubectl plugin or single Go binary with no cluster-side agents

## When to avoid
- you need multi-cluster cost analysis dashboards (consider the commercial KorPro or other tools)
- you need automatic deletion with policy enforcement rather than discovery
- you are not running Kubernetes

## Facets
- artifact type: cli-tool
- maturity: active
- function: developer-tools, monitoring, infrastructure-as-code
- domain: cloud-computing, infrastructure-as-code
- platform: cli, cross-platform, go
- tags: kubernetes, resource-cleanup, orphaned-resources, cost-optimization, kubectl-plugin, helm-chart, devops, containers, docker

## Member repositories
- yonahd/kor (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:39.788465+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:21:07.273419+00:00, confidence not recorded.
  - readme: https://github.com/yonahd/kor (fetched 2026-08-28T04:05:39.788465+00:00, sha 9cb5fbd0a128)
- Data as of 2026-08-30T08:39:29.467469+00:00.