Mount a SSHFS volume into a Docker instance

Ralph asked:

I use SSHFS to mount a remote filesystem on my host and I want to be able to access it from inside a Docker container.

I mount the remote filesystem

sshfs -o idmap=user,uid=$(id -u),gid=$(id -g) [email protected]:directory /path/to/sshfs

And, using Docker, I get the following errors depending on me using --mount:

docker run  -it -v /path/to/sshfs:/target myimage bash
docker: Error response from daemon: error while creating mount source path '/path/to/sshfs': mkdir /path/to/sshfs: file exists.

or -v:

docker run -it  --mount src=/path/to/sshfs,target=/target,type=bind  myimage bash
docker: Error response from daemon: invalid mount config for type "bind": bind source path does not exist: /path/to/sshfs.
See 'docker run --help'

Is it possible to mount a sshfs mountpoint into a container?

My answer:

You need to uncomment user_allow_other in /etc/fuse.conf. Then unmount and remount the FUSE filesystem, and try starting the container again.

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