B2CK has published a new module tryton-filestore-gs which allows to use Google Cloud Storage to store Tryton's data.
To use Google Cloud Storage, the trytond configuration must be modify to set in the database section, the class to tryton_filestorage_gs.FileStoreGS and the bucket to the name of your bucket. Here is an example the section:
[database] class = tryton_filestorage_gs.FileStoreGS bucket = bucket-id-here
The authentication must be set using environment variable as explained in the Authentication section.