I mounted a path to my b2 bucket on my host linux server. Folders and files from the remote will show when searched from ls -l on the host but they do not show within the docker container. I can successfully mount a volume between host and docker container and share local files.
My rclone mount config is:
sudo rclone mount --umask=0 b2:remote/path /path/to/host --allow-other --vfs-cache-mode full
2020/08/01 16:39:50 DEBUG : rclone: Version "v1.52.2" starting with parameters ["rclone" "mount" "--umask=0" "b2:stonevedenmedia" "/root/media" "--allow-other" "-vv"]
2020/08/01 16:39:50 DEBUG : Using config file from "/root/.config/rclone/rclone.conf"
2020/08/01 16:39:50 DEBUG : B2 bucket stonevedenmedia: Mounting on "/root/media"
2020/08/01 16:39:50 INFO : B2 bucket stonevedenmedia: poll-interval is not supported by this remote
2020/08/01 16:39:50 DEBUG : Adding path "vfs/forget" to remote control registry
2020/08/01 16:39:50 DEBUG : Adding path "vfs/refresh" to remote control registry
2020/08/01 16:39:50 DEBUG : Adding path "vfs/poll-interval" to remote control registry
2020/08/01 16:39:50 DEBUG : : Root:
2020/08/01 16:39:50 DEBUG : : >Root: node=/, err=<nil>
(this is all i get before the terminal goes unresponsive)