Hi,

is there documentation available that describes how the buildpack cache works?

I found the following info:

https://docs.cloudfoundry.org/concepts/how-applications-are-staged.html

“The Task downloads buildpacks and the app’s buildpack cache, if present.”

https://github.com/cloudfoundry/java-buildpack/blob/master/docs/extending-caches.md

I wonder how often the buildpacks and artifacts like JVM, Tomcat etc. are downloaded and how they are cached? Is this cache per app, per diego cell, CF global?

I’m talking about the default online buildpacks.

Thanks,

Stephan