A. An event-driven architecture that will send a message when the VM shuts down to a log-collecting function that extracts and uploads the log directly from the storage volume

B. Creating a webhook that will trigger on VM shutdown API calls and upload the requested files from the volume attached to the VM into the object-defined storage service

C. An API of the object-defined storage service that will scrape the stopped VM disk and self-upload the required files as objects

D. A script embedded on the stopping VM's OS that will upload the logs on system shutdown