repo: https://github.com/fphammerle/docker-rsync-sshd
docker hub: https://hub.docker.com/r/fphammerle/rsync-sshd
$ docker run --name=rsync-sshd -p 2022:22 -e USERS=alice,bob fphammerle/rsync-sshd
$ docker cp alice-keys rsync-sshd:/home/alice/.ssh/authorized_keys
$ docker cp bob-keys rsync-sshd:/home/bob/.ssh/authorized_keys
$ docker run --name rsync-sshd \
--publish 2022:22 --env USERS=alice,bob \
--volume host-keys:/etc/ssh/host_keys \
--volume alice-ssh-config:/home/alice/.ssh:ro \
--volume bob-ssh-config:/home/bob/.ssh:ro \
--init --rm \
fphammerle/rsync-sshd
$ ssh -l alice -p 2022 localhost id
uid=1000(alice) gid=1000(alice) groups=1000(alice)