Provide a repackaging configuration option that keeps certain resources in the root of the jar

[wilkinsona]

Cloud Foundry supports pre-runtime hooks that need to be placed in the root of an application's directory. When you're deploying a fat jar or war archive, that means they need to go in the root of the archive. This has always been a problem with wars (where resources end up in WEB-INF/classes) and, since the move to BOOT-INF/classes in 1.4, it's now a problem with jars too.

We should provide a repackaging configuration option that allows certain resources to remain in the root of the archive.

[kelapure]

For standalone deployable war files you can create the custom top level folder in /src/main/webapp/ like /src/main/webapp/.profile.d

[wilkinsona]

Ah, yes. Of course you can. Thanks, @kelapure.

[wilkinsona]

It's just occurred to me that this is really the same requirements as #6626.