Transmission in a Docker container with OpenVPN

December 10, 2021 Tech Networking transmission docker openvpn vpn

As I'd moved from TrueNAS to Ubuntu, I was moving most everything to a Docker container, and Transmission (using OpenVPN) was no different.

Under TrueNAS, I'd used a jail (https://www.nodinrogers.com/posts/2020-11-07-freenas-transmission-jail-with-openvpn/), but jails don't exist in Ubuntu, so Docker is the way to go.

The files I want to share are located in /mnt/files2share/, and I want to limit access to the Docker container to the 192.168.1.x/24 network.

Resulting transmission.yaml file:

version: '3.3'
services:
    transmission-openvpn:
        container_name: tranmission
        cap_add:
            - NET_ADMIN
        volumes:
            - '/mnt/file2share/:/data'
            - '/your/config/path/:/config'
        environment:
            - OPENVPN_PROVIDER=PIA
            - OPENVPN_CONFIG=denver
            - OPENVPN_USERNAME=p1234567
            - OPENVPN_PASSWORD=SuperSecretPW?
            - LOCAL_NETWORK=192.168.1.0/24
            - TZ=America/Denver
        logging:
            driver: json-file
            options:
                max-size: 10m
        ports:
            - '9091:9091'
        image: haugene/transmission-openvpn

Creating the Docker container:

docker-compose -f ./transmission.yaml up -d

Verify the image is running:

docker ps
CONTAINER ID   IMAGE                             COMMAND                  CREATED             STATUS                PORTS                                                 NAMES
4e6e6b8827b5   haugene/transmission-openvpn      "dumb-init /etc/open…"   3 days ago          Up 3 days (healthy)   8118/tcp, 0.0.0.0:9091->9091/tcp, :::9091->9091/tcp   tranmission

Once running, I was able to connect to the Transmission web GUI at https://< Docker host IP >:9091

References

dockerhub - haugene/transmission-openvpn https://hub.docker.com/r/haugene/transmission-openvpn