# haugene/docker-transmission-openvpn: Transmission Behind an OpenVPN Tunnel in One Container > A Docker image that runs Transmission only while an OpenVPN tunnel is up, with built-in provider support. Here is what it does, how to start it, and where it stops being the right tool. **haugene/docker-transmission-openvpn** — Docker container running Transmission torrent client with WebUI over an OpenVPN tunnel - Repository: https://github.com/haugene/docker-transmission-openvpn - Stars: 4,567 · Forks: 1,167 - Language: Shell - License: GPL-3.0 - Published: 2026-09-23 · Updated: 2026-09-23 · Language: en - Canonical page: https://hysenlabs.com/projects/haugene-docker-transmission-openvpn ## What problem haugene/docker-transmission-openvpn solves Running a torrent client on a home connection exposes your IP to every peer in the swarm. The usual fix is a VPN, but a system-wide VPN on the host affects everything else on that machine, and a split-tunnel setup requires routing rules that are easy to get wrong. This image takes a narrower approach: OpenVPN and Transmission live inside the same container, and the README states plainly that Transmission runs only when OpenVPN has an active tunnel. The coupling is the product. If the tunnel is not up, there is no torrent client running to leak from. The intended user is someone comfortable with Docker who wants a self-hosted download box. The README's quick start assumes a storage path, a config path, a VPN provider, and a local network range. It also ships built-in support for many popular VPN providers, which is the part that saves the most time: instead of hand-writing an OpenVPN client config, you set OPENVPN_PROVIDER and a config name. The repository is GPL-3.0, written mostly in Shell, and the last push was on 2026-08-17, the same day v5.5.2 was tagged. ## How the container couples OpenVPN and Transmission The repository layout shows the separation of concerns: openvpn/ holds provider definitions, scripts/ holds the entrypoint logic, transmission/ holds the client configuration, and proxy/ and privoxy/ exist for the optional proxy image. The Dockerfile is multi-stage. The first stage, built on alpine, downloads several alternative web UIs (Shift, Flood for Transmission, Combustion, kettu, Transmissionic, Transmission Web Control) into /opt/transmission-ui. The second stage is the runtime image, based on haugene/transmission-base:4.1.3-ubuntu26.04, with /data and /config declared as volumes. That base tag is worth noting: v5.5.0 was the release that moved to Ubuntu 26.04 and Transmission 4.1.3, so the image version and the Transmission version move together. The runtime requires NET_ADMIN because it manipulates the network namespace to create the tunnel. The README's Podman example goes further and uses --privileged, with an explicit warning that the container then has full access to the host OS. That is not a formality; it is the cost of doing tunnel setup inside the container rather than on the host. The docker-compose.yml in the repository also passes /dev/net/tun as a device, which the docker run example in the README does not show. If you copy the README command verbatim onto a host where the tun device is not otherwise available, the compose file is the more complete reference. ## Installing it and starting a first download The README points to documentation hosted on GitHub Pages and gives a quick start using PIA as the provider. The docker run form needs NET_ADMIN, two volume mounts, and four environment variables. Replace the paths and credentials with your own. ```bash docker run --cap-add=NET_ADMIN -d \ -v /your/storage/path/:/data \ -v /your/config/path/:/config \ -e OPENVPN_PROVIDER=PIA \ -e OPENVPN_CONFIG=france \ -e OPENVPN_USERNAME=user \ -e OPENVPN_PASSWORD=pass \ -e LOCAL_NETWORK=192.168.0.0/16 \ -p 9091:9091 \ haugene/transmission-openvpn ``` /data is where Transmission writes downloads, /config holds the Transmission home directory, and port 9091 is the WebUI. Once the container is up, open http://your-host:9091. If the tunnel has not come up, you should not expect the WebUI to be serving a running Transmission instance, because the container ties the client to the tunnel state. For a compose setup, the repository's docker-compose.yml is a working template. It adds the tun device and a restart policy, and it sets OPENVPN_OPTS with keepalive-style flags. ```yaml version: '2' services: transmission: image: haugene/transmission-openvpn cap_add: - NET_ADMIN devices: - /dev/net/tun restart: always ports: - "9091:9091" volumes: - /your/storage/path/:/data - /your/config/path/:/config environment: - OPENVPN_PROVIDER=PIA - OPENVPN_USERNAME=username - OPENVPN_PASSWORD=password - OPENVPN_OPTS=--inactive 3600 --ping 10 --ping-exit 60 - LOCAL_NETWORK=192.168.0.0/24 ``` LOCAL_NETWORK matters more than it looks. It tells the container which range is your LAN so that the WebUI stays reachable from your own network while everything else is routed through the tunnel. Set it to the actual subnet you browse from, not the README's example, or you will lock yourself out of the interface. ## Where this image is the wrong tool Provider coverage is the first boundary. The image has built-in support for many popular providers, but if yours is not among them, you are writing your own OpenVPN configuration and losing the main convenience the project offers. The related searches around NordVPN, ProtonVPN and Mullvad suggest people are often checking that specific question before committing. Resource access is the second. NET_ADMIN is a real capability, and the Podman path documented in the README runs privileged with a warning that the container has full access to the host OS. On a shared host or a managed platform that forbids privileged containers, this image is simply not deployable as documented. The third boundary is operational. The README has a known issues section describing a specific failure mode: if a previously stable setup starts failing, you may see curl getaddrinfo thread failed to start or a warning that the initial DNS resolution test failed, with a link to issue 2410 for a fix and a workaround. That is a DNS resolution failure inside the container, and it is the kind of problem that looks like a VPN outage but is not. Anyone who cannot read container logs and follow an issue thread to a workaround should think twice before depending on this for unattended downloads. ## How it differs from running Transmission and a VPN separately The obvious alternative is a plain Transmission container plus a VPN client on the host, or a separate VPN container that other containers route through. The difference is where the kill switch lives. With a host VPN, the tunnel covers the whole machine and Transmission has no idea whether it is up; you rely on the host client's own kill switch and on routing rules outside the container. With a separate VPN container, you get network-level isolation, but you are assembling the routing yourself and the torrent client will happily start before the tunnel is ready unless you add a health check. This image puts the check inside the entrypoint. The README's one-line description is the whole design: Transmission is running only when OpenVPN has an active tunnel. That is a smaller, more auditable claim than a general-purpose VPN container, and it comes with the provider definitions and the alternative web UIs already baked into the image. The trade-off is that you cannot reuse the container for anything else, and if you want a provider the image does not know about, the separate-container approach is more flexible. There is also a proxy variant in the repository. The docker-compose.yml comments out a proxy service using haugene/transmission-openvpn-proxy on port 8080, and an rss service using haugene/transmission-rss. Those are separate images, not features of this one. ## Maintenance, tags and licence The README describes a semver scheme: fixed releases are tagged with major, major.minor and major.minor.patch, so you can pin at whichever level you prefer, and the newest fixed release also carries latest. There are also edge (latest commit on master), dev (last commit on the dev branch), and occasional beta tags. The README says using dev or beta is probably not for the average user and that you should expect occasional breakage or even deletion of those tags upstream. Pinning to a major.minor tag is the reasonable middle ground. Upgrade cost is not zero. v5.5.0 moved the base to Ubuntu 26.04 and Transmission 4.1.3, which means a Transmission major-line change arrives with the image rather than as a choice you make. v5.5.1 was provider maintenance for IPVanish and OVPN, and v5.5.2 fixed a too many open files error. Those release notes tell you the maintenance work is concentrated in provider definitions and packaging, which is exactly where a self-managed OpenVPN config would put the burden on you. The project is GPL-3.0. If you distribute a modified image, the licence terms apply to what you distribute; if you run it privately, that is a different situation. This is a description of the licence, not legal advice, and anyone redistributing a derivative should read the LICENSE file in the repository. ## Conclusion Adopt it if you want one container that couples Transmission's lifecycle to an OpenVPN tunnel and you are willing to read the documentation before trusting it with your traffic. Do not adopt it if you need a provider that is not built in, if you are unwilling to run a container with NET_ADMIN, or if you want a kill switch you can audit without reading shell scripts. Before you commit, verify three things: that your provider appears in the supported list, that you can reproduce the docker run command from the README with your own credentials, and that the container actually stops Transmission when the tunnel drops in your environment, since that behaviour is the whole reason to pick this image over a plain Transmission container. ## FAQ ### Can I use OpenVPN with Docker? Yes. This image is built on exactly that combination: it runs OpenVPN and Transmission inside one container and requires the NET_ADMIN capability to set up the tunnel, with /dev/net/tun passed as a device in the repository's docker-compose.yml. ### Which VPN providers does haugene/docker-transmission-openvpn support out of the box? The README states the image has built-in support for many popular VPN providers, selected with the OPENVPN_PROVIDER environment variable. The specific list is not enumerated in the README, which points to the documentation on GitHub Pages for details. ### What does LOCAL_NETWORK do in haugene/docker-transmission-openvpn? It declares your local network range, given as 192.168.0.0/16 in the README quick start and 192.168.0.0/24 in the repository's docker-compose.yml. It exists so the WebUI on port 9091 stays reachable from your own network while other traffic goes through the tunnel. ### Does Transmission keep running if the OpenVPN tunnel drops? According to the README, the container is configured so that Transmission is running only when OpenVPN has an active tunnel. That coupling is the reason the image exists, rather than being a separate setting you enable. ## Sources - [haugene/docker-transmission-openvpn on GitHub](https://github.com/haugene/docker-transmission-openvpn) - [Issues](https://github.com/haugene/docker-transmission-openvpn/issues) - [License: GPL-3.0](https://github.com/haugene/docker-transmission-openvpn/blob/master/LICENSE) - [README](https://github.com/haugene/docker-transmission-openvpn/blob/master/README.md) - [Releases](https://github.com/haugene/docker-transmission-openvpn/releases) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/haugene-docker-transmission-openvpn