haproxy-api
haproxy-api exposes HAProxy 2.x Lua API to use from Rust.
In conjunction with mlua it allows to run Rust code in HAProxy as a Task/Converter/Fetcher/Service/etc.
You can extend HAProxy on a safe and efficient way beyond Lua restrictions.
Thanks to mlua, asynchronous mode is also supported and every time when requested Future is in Pending state, haproxy-api conviniently executes core.yield() under the hood to return to the HAProxy scheduler.
async-std is a recommended executor that can work without explicitly configured Runtime. Bear in mind that asynchronous mode is not too efficient because there is no way to integrate with HAProxy scheduler (current behaviour is more close to busy polling).
Usage
Please check our examples:
Restrictions
Executing HAProxy functions that require yielding is not supported (eg: core.sleep), and these functionality is not exposed.
Although you can run them from Lua or using register_lua_* set of functions.
License
This project is licensed under the MIT license