How to restart workers gracefully

[thomas-hiron]

Hello,

I can't find the information if Franken can restart workers but wait for busy workers to send the response first before restarting.
Here was described the behaviour I'd like to use: #1013

if a worker gets stuck in a request, the watcher will wait for the worker to finish before performing another reload (don't know if there's a better way to do this)

Maybe the restartWorkers method is what I'm looking for, but I can't find any usage of it:

frankenphp/worker.go

Line 222 in a396e64

func restartWorkers(workerOpts []workerOpt) {

I have long-running requests (file uploads), that can last hours, and I'd like a zero-downtime deployment.
To do that, I update the code and I would like to restart the workers once they are done with their current request.

Is it something I can do?

Thanks by advance for your help!