Drop your OpenVPN configuration file in this directory.
Let's pretend that it's called `hacktheplanet.ovpn`.
Then all you have to do is to run:
```
docker-compose run vpn hacktheplanet.ovpn
```
If you need a password (because your OpenVPN configuration specifies `auth-user-pass`) you will be prompted for it.
If the VPN server pushes routes and so forth, they will be added to your machine, because the Compose file specifies `net: host` so the container runs within the hosts namespace.
If you **don't** need to specify a password, you can use `docker-compose run -d vpn hacktheplanet.ovpn` to start the container in the background.
If you OpenVPN configuration needs extra files (certificates etc) you can drop them in this directory too.