That out.log is a special file of type pipe. It gets emptied/read continuously and it outputs to STDOUT.
If you want your logs shipped elsewhere you have a few options:
- create a log handler and capture logs inside of your app. You can send them wherever you want using java.
- use instrumentation agents like datadog
- best way is to call your container/infra platform team that your logs from your container must be captured and made available to you.