# tetra を Homebrew でインストール

tetra 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:tetra
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install tetra
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:tetra
- **パッケージマネージャ:** Homebrew
- **バージョン:** 1.7.0
- **ソース概要:** Tetragon CLI to observe, manage and troubleshoot Tetragon instances
- **ホームページ:** <https://tetragon.io/>
- **リポジトリ:** <https://github.com/cilium/tetragon>
- **最終更新:** 2026-07-26T00:50:38+02:00
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- tetra (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: 1.7.0
## プロジェクトの歴史と使われ方

tetra is the command-line client for Cilium Tetragon, an eBPF-based security observability and runtime enforcement project for Linux and Kubernetes environments.

### プロジェクトの歴史

The cilium/tetragon repository was created in March 2022. Its README describes Tetragon as a Cilium component for real-time, eBPF-based security observability and runtime enforcement, with Kubernetes-aware event detection.

The official release list includes a Tetragon CLI release in May 2022, a v0.8.0 release shortly afterward, and v1.0.0 in November 2023. The tetra CLI became the local operator and developer interface for observing, managing, and troubleshooting Tetragon installations.

### 採用の歴史

Tetragon adoption is centered in the cloud-native security and observability community. The official USERS.md invites production users to list themselves and includes adopters using Tetragon for runtime security, process/file/network observability, Kubernetes security, and artifact attestation use cases.

For package-manager users, the tetra formula is useful because it installs just the client binary needed to interact with Tetragon agents and releases, without requiring users to build the full eBPF project.

### 使われ方

The official tetra CLI installation docs provide binary downloads for Linux, macOS, and Windows, plus Homebrew installation. They also show tetra connecting to a TLS or mTLS-protected Tetragon gRPC API and running getevents.

In practice, tetra is used by operators who need to inspect Tetragon events, connect to agents, and troubleshoot runtime-security telemetry from a workstation or automation environment.

### パッケージ好きにとっての重要性

tetra is significant in package catalogs because it packages the user-facing control plane for an eBPF runtime-security system. It sits at the intersection of local CLI ergonomics, Kubernetes operations, and kernel-level observability.

The package is especially relevant on macOS and Linux admin machines: the heavy lifting happens in Linux or Kubernetes, while the packaged CLI gives maintainers a portable way to query and manage it.

### タイムライン

- 2022: cilium/tetragon repository created.
- 2022: Official release list includes Tetragon CLI and v0.8.0 releases.
- 2023: v1.0.0 released.
- 2026: Repository metadata shows active development and the docs describe current tetra installation methods.

### Related projects

- Cilium, eBPF, Kubernetes, Hubble-style observability, Linux runtime security, TracingPolicy, process/file/network event monitoring, and gRPC TLS or mTLS administration.

### ソース

- <https://github.com/cilium/tetragon README and repository metadata>
- <https://github.com/cilium/tetragon/blob/main/USERS.md>
- <https://tetragon.io/docs/installation/tetra-cli/>
- <https://tetragon.io/docs/overview/>
- official GitHub release list for cilium/tetragon


## 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/tetra.yml](https://github.com/mxcl/pkgdb/blob/main/combined/tetra.yml)


## ソース

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