I might be a bit late to the party with this one but I just found https://github.com/duplicati/duplicati https://github.com/duplicati/duplicati and it seems to

I might be a bit late to the party with this one but I just found https://github.com/duplicati/duplicati https://github.com/duplicati/duplicati and it seems to be a very nice solution for encrypted cloud backups. There's also https://github.com/ncw/rclone https://github.com/ncw/rclone if you would rather do it more like rsync.