[FridgeSeal]

> This is also how all Unix commands work -- they don't write to stdout unless you tell them to

Ok? But as per my other comment, I’m not writing CLI apps, it’s mostly services and I have supporting services which harvest the logs from each containers stdout.

> But why would you write your own logs instead of using something built into your language's library?

I’m not writing my own logging setup? I am using the provided tools?? Every language logging library I’ve ever used writes to stdout?

Structlog in Python, nodejs obvs, all the Rust logging libraries I’ve ever used, I know you can configure Java/scala 3 million different ways (hello yes log4j lol), but all the Spark stuff I’ve written has logged to stdout.