# opa

**Licence:** Apache-2.0 | **Language:** Go | **Source:** https://github.com/open-policy-agent/opa

## Role

Policy engine

## Why it's here

Express your access rules as code and enforce them consistently, instead of scattering if-statements through services.

## Running it

This is a CLI tool, not a service. Build it from source or pull the official image and run it against your own systems.

```bash
./fetch-sources.sh ./sources
tar xzf ./sources/opa.tar.gz -C ./sources
```