Access docker volumes from appwrite function

Is there a way to save/access files on a server as volumes using appwrite functions? My use case is to save some files and then further process them with terminal programs on the server then finally save them to a storage bucket.

The current implementation I'm considering involves the function saving files to a bucket then downloading the files with curl on the server (host) processing them then uploading back to the bucket. I'd however prefer to skip the download and upload via curl and having the function do everything by having both host and function have access to the files using docker volumes. Any suggestion is appreciated. Thanks