• CentOS 7.4
• Docker version 17.10.0-ce, build f4ffd25

I'm trying to create a volume with CIFS and a local driver.

Direct mounting works:

mount -t cifs -o username=user1,password=user1pass,vers=3.0 \
   //localhost/private /tmp/mediashare

Here's my attempt with docker volume create:

 docker volume create \
   --driver local \
   --opt type=cifs \
   --opt device=//localhost/private \
   --opt o=username=user1,password=user1pass,sec=ntlm,vers=3.0 \
   mediashare

docker run -it --rm -v mediashare:/tmp/mediashare \
  -d --name samba-client alpine ash

However, here's the output. The generic invalid argument error seems unhelpful.

docker: Error response from daemon: error while mounting volume '/var/lib/docker/volumes/mediashare/_data': error while mounting volume with options: type='cifs' device='//localhost/private' o='username=user1,password=user1pass,sec=ntlm,vers=3.0': invalid argument.

References

This must be old information, since I don't see a name argument for docker volume create:

• https://serverfault.com/a/848166/389114

I got it working with a plugin (docker-volume-netshare), but I want to try it without.

• Trouble with CIFS Mount ContainX/docker-volume-netshare#143 (comment)

My Docker Forums post:

• https://forums.docker.com/t/docker-volume-create-with-local-cifs-driver/41226/7