[asciimike]

We provide an in-memory writable filesystem (e.g. you want to do file transformations) but it's not persistent across all instances. We're looking into Filestore integration for a mountable NFS product, though as mentioned in another comment about that, reading is easy but writing is hard.

[boundlessdreamz]

Why is writing hard? We already use Filestore across multiple VMs in read-write mode. We ensure that writes are unique i.e no two machines will use the same filename. There are also no file modifications.