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linuxserver.io

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The LinuxServer.io team brings you another container release featuring:

  • regular and timely application updates
  • easy user mappings (PGID, PUID)
  • custom base image with s6 overlay
  • weekly base OS updates with common layers across the entire LinuxServer.io ecosystem to minimise space usage, down time and bandwidth
  • regular security updates

Find us at:

  • Blog - all the things you can do with our containers including How-To guides, opinions and much more!
  • Discord - realtime support / chat with the community and the team.
  • Discourse - post on our community forum.
  • Fleet - an online web interface which displays all of our maintained images.
  • GitHub - view the source for all of our repositories.
  • Open Collective - please consider helping us by either donating or contributing to our budget

Scarf.io pulls GitHub Stars GitHub Release GitHub Package Repository GitLab Container Registry Quay.io Docker Pulls Docker Stars Jenkins Build LSIO CI

Transmission is designed for easy, powerful use. Transmission has the features you want from a BitTorrent client: encryption, a web interface, peer exchange, magnet links, DHT, µTP, UPnP and NAT-PMP port forwarding, webseed support, watch directories, tracker editing, global and per-torrent speed limits, and more.

transmission

Supported Architectures

Our images support multiple architectures such as x86-64, arm64 and armhf. We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.

Simply pulling lscr.io/linuxserver/transmission should retrieve the correct image for your arch, but you can also pull specific arch images via tags.

The architectures supported by this image are:

Architecture Tag
x86-64 amd64-latest
arm64 arm64v8-latest
armhf arm32v7-latest

Application Setup

Webui is on port 9091, the settings.json file in /config has extra settings not available in the webui. Stop the container before editing it or any changes won't be saved.

If you choose to use transmission-web-control as your default UI, just note that the origional Web UI will not be available to you despite the button being present.

Securing the webui with a username/password.

Use the USER and PASS variables in docker run/create/compose to set authentication. Do not manually edit the settings.json to input user/pass, otherwise transmission cannot be stopped cleanly by the s6 supervisor.

Updating Blocklists Automatically

This requires "blocklist-enabled": true, to be set. By setting this to true, it is assumed you have also populated blocklist-url with a valid block list.

The automatic update is a shell script that downloads a blocklist from the url stored in the settings.json, gunzips it, and restarts the transmission daemon.

The automatic update will run once a day at 3am local server time.

Using whitelist

Use WHITELIST to enable a list of ip as whitelist. This enable support for rpc-whitelist. When WHITELIST is empty support for whitelist is disabled.

Use HOST_WHITELIST to enable an list of dns names as host-whitelist. This enable support for rpc-host-whitelist. When HOST_WHITELIST is empty support for host-whitelist is disabled.

Usage

Here are some example snippets to help you get started creating a container.

docker-compose (recommended, click here for more info)

---
version: "2.1"
services:
  transmission:
    image: lscr.io/linuxserver/transmission
    container_name: transmission
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Europe/London
      - TRANSMISSION_WEB_HOME=/combustion-release/ #optional
      - USER=username #optional
      - PASS=password #optional
      - WHITELIST=iplist #optional
      - HOST_WHITELIST=dnsnane list #optional
    volumes:
      - <path to data>:/config
      - <path to downloads>:/downloads
      - <path to watch folder>:/watch
    ports:
      - 9091:9091
      - 51413:51413
      - 51413:51413/udp
    restart: unless-stopped
docker run -d \
  --name=transmission \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Europe/London \
  -e TRANSMISSION_WEB_HOME=/combustion-release/ `#optional` \
  -e USER=username `#optional` \
  -e PASS=password `#optional` \
  -e WHITELIST=iplist `#optional` \
  -e HOST_WHITELIST=dnsnane list `#optional` \
  -p 9091:9091 \
  -p 51413:51413 \
  -p 51413:51413/udp \
  -v <path to data>:/config \
  -v <path to downloads>:/downloads \
  -v <path to watch folder>:/watch \
  --restart unless-stopped \
  lscr.io/linuxserver/transmission

Parameters

Container images are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.

Parameter Function
-p 9091 WebUI
-p 51413 Torrent Port TCP
-p 51413/udp Torrent Port UDP
-e PUID=1000 for UserID - see below for explanation
-e PGID=1000 for GroupID - see below for explanation
-e TZ=Europe/London Specify a timezone to use EG Europe/London.
-e TRANSMISSION_WEB_HOME=/combustion-release/ Specify an alternative UI options are /combustion-release/, /transmission-web-control/, /kettu/ and /flood-for-transmission/.
-e USER=username Specify an optional username for the interface
-e PASS=password Specify an optional password for the interface
-e WHITELIST=iplist Specify an optional list of comma separated ip whitelist. Fill rpc-whitelist setting.
-e HOST_WHITELIST=dnsnane list Specify an optional list of comma separated dns name whitelist. Fill rpc-host-whitelist setting.
-v /config Where transmission should store config files and logs.
-v /downloads Local path for downloads.
-v /watch Watch folder for torrent files.

Environment variables from files (Docker secrets)

You can set any environment variable from a file by using a special prepend FILE__.

As an example:

-e FILE__PASSWORD=/run/secrets/mysecretpassword

Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.

Umask for running applications

For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.

User / Group Identifiers

When using volumes (-v flags) permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user PUID and group PGID.

Ensure any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.

In this instance PUID=1000 and PGID=1000, to find yours use id user as below:

  $ id username
    uid=1000(dockeruser) gid=1000(dockergroup) groups=1000(dockergroup)

Docker Mods

Docker Mods Docker Universal Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.

Support Info

  • Shell access whilst the container is running: docker exec -it transmission /bin/bash
  • To monitor the logs of the container in realtime: docker logs -f transmission
  • container version number
    • docker inspect -f '{{ index .Config.Labels "build_version" }}' transmission
  • image version number
    • docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/transmission

Updating Info

Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (ie. nextcloud, plex), we do not recommend or support updating apps inside the container. Please consult the Application Setup section above to see if it is recommended for the image.

Below are the instructions for updating containers:

Via Docker Compose

  • Update all images: docker-compose pull
    • or update a single image: docker-compose pull transmission
  • Let compose update all containers as necessary: docker-compose up -d
    • or update a single container: docker-compose up -d transmission
  • You can also remove the old dangling images: docker image prune

Via Docker Run

  • Update the image: docker pull lscr.io/linuxserver/transmission
  • Stop the running container: docker stop transmission
  • Delete the container: docker rm transmission
  • Recreate a new container with the same docker run parameters as instructed above (if mapped correctly to a host folder, your /config folder and settings will be preserved)
  • You can also remove the old dangling images: docker image prune

Via Watchtower auto-updater (only use if you don't remember the original parameters)

  • Pull the latest image at its tag and replace it with the same env variables in one run:

    docker run --rm \
    -v /var/run/docker.sock:/var/run/docker.sock \
    containrrr/watchtower \
    --run-once transmission
  • You can also remove the old dangling images: docker image prune

Note: We do not endorse the use of Watchtower as a solution to automated updates of existing Docker containers. In fact we generally discourage automated updates. However, this is a useful tool for one-time manual updates of containers where you have forgotten the original parameters. In the long term, we highly recommend using Docker Compose.

Image Update Notifications - Diun (Docker Image Update Notifier)

  • We recommend Diun for update notifications. Other tools that automatically update containers unattended are not recommended or supported.

Building locally

If you want to make local modifications to these images for development purposes or just to customize the logic:

git clone https://github.com/linuxserver/docker-transmission.git
cd docker-transmission
docker build \
  --no-cache \
  --pull \
  -t lscr.io/linuxserver/transmission:latest .

The ARM variants can be built on x86_64 hardware using multiarch/qemu-user-static

docker run --rm --privileged multiarch/qemu-user-static:register --reset

Once registered you can define the dockerfile to use with -f Dockerfile.aarch64.

Versions

  • 09.07.21: - Wait for the transmission-daemon termination after a caught sigterm
  • 06.03.21: - Add Flood for Transmission as a UI option
  • 23.01.21: - Rebasing to alpine 3.13.
  • 02.11.20: - Add ca-certificates package to allow connecting to https trackers.
  • 02.06.20: - Rebase to alpine 3.12, update to transmission 3.0, remove python2, add python3.
  • 11.05.20: - Remove unnecessary chmod (remnant of previous change).
  • 28.04.20: - Use transmission-remote to update blocklist.
  • 30.03.20: - Internalize blocklist-update.sh.
  • 29.03.20: - Update auth info in readme.
  • 19.12.19: - Rebasing to alpine 3.11.
  • 04.10.19: - Update package label.
  • 21.08.19: - Add optional user/pass environment variables, fix transmission shut down if user/pass are set.
  • 19.07.19: - Send SIGTERM in blocklist update to properly close pid.
  • 28.06.19: - Rebasing to alpine 3.10.
  • 23.03.19: - Switching to new Base images, shift to arm32v7 tag.
  • 22.02.19: - Rebase to Alpine 3.9, add themes to baseimage, add python and findutils.
  • 22.02.19: - Catch term and clean exit.
  • 07.02.19: - Add pipeline logic and multi arch.
  • 15.08.18: - Rebase to alpine linux 3.8.
  • 12.02.18: - Pull transmission from edge repo.
  • 10.01.18: - Rebase to alpine linux 3.7.
  • 25.07.17: - Add rsync package.
  • 27.05.17: - Rebase to alpine linux 3.6.
  • 06.02.17: - Rebase to alpine linux 3.5.
  • 15.01.17: - Add p7zip, tar , unrar and unzip packages.
  • 16.10.16: - Blocklist autoupdate with optional authentication.
  • 14.10.16: - Add version layer informationE.
  • 23.09.16: - Add information about securing the webui to README.
  • 21.09.16: - Add curl package.
  • 09.09.16: - Add layer badges to README.
  • 28.08.16: - Add badges to README.
  • 09.08.16: - Rebase to alpine linux.
  • 06.12.15: - Separate mapping for watch folder.
  • 16.11.15: - Initial Release.

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