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kotlinlang

Hi, I got a kotlin server app that is deployed in pods (k8s). In some cases, k8s can send SIGTERM / SIGKILL signals to kill my app.
What is the good way, in Kotlin, to gracefully shutdown (close all connections...)?
Is there better than the java way?
```Runtime.getRuntime().addShutdownHook(myShutdownHook);```

I build a small `SuspendApp { }` variant on top of `runBlocking` that does exactly this on top of Structured Concurrency.

So, if you receive a `SIGTERM` or `SIGINT` it will `cancel` the `CoroutineScope`, and it'll block the shutdown thread until the entire program is finished (`CoroutineScope.join`).

This allows you to run finalisers, such as committing offsets to Kafka, `stop(500, 500)` any network engine, clean-up, etc.

Side-note: it lives under the Arrow-kt umbrella, but it only has KotlinX Coroutines as a dependency.

<https://github.com/arrow-kt/suspendapp>

You should watch Simon’s excellent video on the topic as well. I can’t find it now sadly 

I think you're referring to this one <@UVAR0DXP0>, <https://www.youtube.com/watch?v=A69_t_oEP_E>
Thanks :relaxed: