# FairwindsOps/pluto

A cli tool to help discover deprecated apiVersions in Kubernetes

Repository: https://github.com/FairwindsOps/pluto
Canonical: https://ross.abutalabs.com/products/pluto
Homepage: https://fairwinds.com
Language: Go
License: Apache-2.0
License Family: permissive
Topics: kubernetes, helm, fairwinds-official
Last push: 2026-08-26T14:25:25+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 97, longevity 100
- inputs: {"age_days": 2353, "days_push": 7, "days_rel": 23, "gap_med": 21.0, "n_releases_24m": 23}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2570, forks 139 (observed 2026-08-28T04:07:01.365026+00:00)

## What it is
Pluto is a Go command-line utility from Fairwinds that detects deprecated and removed Kubernetes apiVersions in static manifests, Helm charts, and live Helm 2/3 releases. It flags whether an apiVersion is merely DEPRECATED or fully REMOVED so teams can fix manifests before a cluster upgrade breaks their workloads.

## Use cases
- find deprecated kubernetes apiVersions in my yaml manifests
- check helm charts for removed api versions before a cluster upgrade
- scan live helm releases in my cluster for deprecated apis
- verify no deprecated kubernetes APIs before upgrading the cluster
- add a CI check that fails on deprecated kubernetes apiVersions
- detect old apps/v1beta1 or extensions/v1beta1 usage in my IaC repo

## When to choose
- You are preparing a Kubernetes version upgrade and need to locate every deprecated or removed apiVersion
- You want to audit infrastructure-as-code repos containing static manifests and Helm charts
- You need to inspect running Helm 2 or Helm 3 releases in a cluster without relying on the api-server's version conversion
- You want a lightweight CLI or GitHub Action gate in CI for apiVersion deprecation

## When to avoid
- You need general Kubernetes security, policy, or best-practice auditing rather than apiVersion deprecation (tools like Polaris or kube-linter fit better)
- You need full-fledged manifest linting or schema validation beyond apiVersion checks
- Your project does not use Kubernetes or Helm at all

## Facets
- artifact type: cli-tool
- maturity: stable
- function: cli, developer-tools, infrastructure-as-code, ci-cd
- domain: infrastructure-as-code, developer-tools
- platform: go, windows, cli
- tags: kubernetes, helm, deprecated-apiversions, api-deprecation, k8s-upgrade, static-analysis, manifest-scanning, helm-releases, github-action, fairwinds, containers, devops, command-line, linux, macos, docker

## Member repositories
- FairwindsOps/pluto (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:01.365026+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 2026-08-30T02:23:18.186824+00:00, confidence not recorded.
  - readme: https://github.com/FairwindsOps/pluto (fetched 2026-08-28T04:07:01.365026+00:00, sha 9f2ef7b1c5ec)
  - homepage: https://fairwinds.com (fetched 2026-08-29T10:05:38.290335+00:00, sha 92e848fcc5ec)
  - site_page: https://www.fairwinds.com/insights-features (fetched 2026-08-29T10:05:38.292918+00:00, sha b96d47f953f8)
  - site_page: https://insights.docs.fairwinds.com/ (fetched 2026-08-29T10:05:38.294742+00:00, sha 0563b916b4ac)
  - site_page: https://www.fairwinds.com/gke-quickstart (fetched 2026-08-29T10:05:38.296325+00:00, sha 01174bc9b9d6)
  - site_page: https://www.fairwinds.com/aks-quickstart (fetched 2026-08-29T10:05:38.298019+00:00, sha 3929a4106941)
- Data as of 2026-08-30T08:39:29.467469+00:00.