Having trouve mounting single .ovpn file

[strongui]

I am new to docker, and I can't seem to get the volume configuration correct. My Provider is whatbox, so I just need to mount a single Skater.opvn file.

Here is what I have:

docker run --rm -it --cap-add=NET_ADMIN \
  -e OPENVPN_PROVIDER=custom \
  -e OPENVPN_USERNAME=<myuser>\  
  -e OPENVPN_PASSWORD=<mypass> \
  -e DISABLE_PORT_UPDATER=true \
  -v /media/john/smbashare/homemedia/config/vpn/Skate.ovpn:/vpn/default.ovpn \
  haugene/transmission-openvpn

/media/john/smbashare/homemedia

That is where my root docker configs are

/media/john/smbashare/homemedia/config/vpn/

That is where I have my Skate.ovpn file

When I try to run the above I get: docker: invalid reference format

I also tried this:

docker run --rm -it --cap-add=NET_ADMIN \
  -e OPENVPN_PROVIDER=custom \
  -e OPENVPN_USERNAME=<myuser>\  
  -e OPENVPN_PASSWORD=<mypass> \
  -e OPENVPN_CONFIG=Skate \
  -e DISABLE_PORT_UPDATER=true \
  -v /media/john/smbashare/homemedia/config/vpn:/vpn \
  haugene/transmission-openvpn

Then it runs, but tries finding the Skate.ovpn file online, and says Skate.ovpn could not be found. I am sure I'm missing something simple, just not sure what.

[strongui]

docker run --rm -it --cap-add=NET_ADMIN \
  -e OPENVPN_PROVIDER=custom \
  -e OPENVPN_USERNAME=<myuser> \
  -e OPENVPN_PASSWORD=<mypass> \
  -e OPENVPN_CONFIG=Skate \
  -e DISABLE_PORT_UPDATER=true \
  -v ${PWD}/config/vpn/:/etc/openvpn/custom/ \
  haugene/transmission-openvpn

This seems to at least start stuff up.