# gator を Homebrew でインストール

gator のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:gator
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install gator
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:gator
- **パッケージマネージャ:** Homebrew
- **バージョン:** 3.23.0
- **ソース概要:** CLI Utility for Open Policy Agent Gatekeeper
- **ホームページ:** <https://open-policy-agent.github.io/gatekeeper/>
- **リポジトリ:** <https://github.com/open-policy-agent/gatekeeper>
- **最終更新:** 2026-07-29T16:04:59+02:00
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- gator (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 3.23.0
## プロジェクトの歴史と使われ方

gator is the command-line utility shipped by Open Policy Agent Gatekeeper for local Gatekeeper policy work. It lets users evaluate ConstraintTemplates and Constraints outside the cluster, and newer versions add policy-library management commands.

### プロジェクトの歴史

Gatekeeper's repository was created in 2018 as the Kubernetes admission-control project in the Open Policy Agent ecosystem. The README distinguishes modern Gatekeeper from earlier OPA sidecar and kube-mgmt usage, noting native Kubernetes CRDs, constraints, constraint templates, audit functionality, mutation, and external data support.

The gator CLI is documented as a Gatekeeper v3.11+ beta feature. The same official page notes that `go install` support requires Gatekeeper master or v3.16.0 and later, and that the `gator policy` subcommand is a v3.22+ alpha feature.

### 採用の歴史

Official gator installation paths include downloading binaries from Gatekeeper releases, building from source, and installing with Homebrew on macOS and Linux. Its adoption is tied to Gatekeeper users who want to test or manage policies before applying them to Kubernetes clusters.

### 使われ方

`gator test` evaluates Kubernetes objects against templates and constraints and reports violations through both output and exit status. `gator policy` provides a brew-inspired interface for discovering, installing, upgrading, and managing policies from the official gatekeeper-library.

### パッケージ好きにとっての重要性

gator matters because it packages policy validation and policy-library workflows into a local CLI, making Gatekeeper policy development fit into package-manager, CI, and preflight-test workflows rather than only live-cluster admission control.

### タイムライン

- 2018: Gatekeeper repository created.
- 2019: v2.0.1 release published.
- 2023: v3.11.0 release line introduced the documented gator beta feature state.
- 2024: v3.16.0 became the documented minimum for `go install` of gator by version.
- 2026: v3.22.0 release line introduced the documented `gator policy` alpha feature state.

### Related projects

- gator is part of Open Policy Agent Gatekeeper and works with Gatekeeper ConstraintTemplates, Constraints, Kubernetes resources, and the official gatekeeper-library. The Gatekeeper README also relates the project to OPA with kube-mgmt.

### ソース

- <https://github.com/open-policy-agent/gatekeeper>
- <https://github.com/open-policy-agent/gatekeeper/releases>
- <https://open-policy-agent.github.io/gatekeeper/website/docs>
- <https://open-policy-agent.github.io/gatekeeper/website/docs/gator>


## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals


## Combined YAML source

View the package source record on GitHub. [combined/gator.yml](https://github.com/mxcl/pkgdb/blob/main/combined/gator.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph