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

linuxserver/synclounge

Synclounge is a third party tool that allows you to watch Plex in sync with your friends/family, wherever you are.

Supported Architectures

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/synclounge:latest 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	Available	Tag
x86-64	✅	amd64-<version tag>
arm64	✅	arm64v8-<version tag>
armhf	❌

Application Setup

The web app and the server are both accessible at http://SERVERIP:8088.

Note: It is recommended to use http as the external proto with a reverse proxy due to https not working with external plex clients.

Read-Only Operation

This image can be run with a read-only container filesystem. For details please read the docs.

Non-Root Operation

This image can be run with a non-root user. For details please read the docs.

Usage

To help you get started creating a container from this image you can either use docker-compose or the docker cli.

Note

Unless a parameter is flaged as 'optional', it is mandatory and a value must be provided.

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

---
services:
  synclounge:
    image: lscr.io/linuxserver/synclounge:latest
    container_name: synclounge
    environment:
      - AUTH_LIST=plexuser1,plexuser2,email1,machineid1 #optional
    ports:
      - 8088:8088
    restart: unless-stopped

docker cli (click here for more info)

docker run -d \
  --name=synclounge \
  -e AUTH_LIST=plexuser1,plexuser2,email1,machineid1 `#optional` \
  -p 8088:8088 \
  --restart unless-stopped \
  lscr.io/linuxserver/synclounge:latest

Parameters

Containers 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 8088:8088	Web app and server port
-e AUTH_LIST=plexuser1,plexuser2,email1,machineid1	If set, only the users defined here and the users of the plex servers defined here will be able to access the server. Use e-mails, plex usernames and/or plex server machine ids, comma separated, no spaces.
--read-only=true	Run container with a read-only filesystem. Please read the docs.
--user=1000:1000	Run container with a non-root user. Please read the docs.

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__MYVAR=/run/secrets/mysecretvariable

Will set the environment variable MYVAR based on the contents of the /run/secrets/mysecretvariable 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.

Docker 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 synclounge /bin/bash

• To monitor the logs of the container in realtime:

  docker logs -f synclounge

• Container version number:

  docker inspect -f '{{ index .Config.Labels "build_version" }}' synclounge

• Image version number:

  docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/synclounge:latest

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 (noted in the relevant readme.md), 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 images:

  • All images:

    docker-compose pull

  • Single image:

    docker-compose pull synclounge

• Update containers:

  • All containers:

    docker-compose up -d

  • Single container:

    docker-compose up -d synclounge

• You can also remove the old dangling images:

  docker image prune

Via Docker Run

• Update the image:

  docker pull lscr.io/linuxserver/synclounge:latest

• Stop the running container:

  docker stop synclounge

• Delete the container:

  docker rm synclounge

• 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

Image Update Notifications - Diun (Docker Image Update Notifier)

Tip

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-synclounge.git
cd docker-synclounge
docker build \
  --no-cache \
  --pull \
  -t lscr.io/linuxserver/synclounge:latest .

The ARM variants can be built on x86_64 hardware and vice versa using lscr.io/linuxserver/qemu-static

docker run --rm --privileged lscr.io/linuxserver/qemu-static --reset

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

Versions

• 19.12.24: - Add support for read-only and non-root operation.
• 05.12.24: - Rebase to Alpine 3.21.
• 04.06.24: - Rebase to Alpine 3.20.
• 26.08.23: - Rebase to Alpine 3.19. Remove deprecated AUTOJOIN_ENABLED & AUTOJOIN_ROOM options.
• 26.08.23: - Rebase to Alpine 3.18.
• 04.07.23: - Deprecate armhf. As announced here
• 29.11.22: - Rebase to alpine 3.17, upgrade to s6v3.
• 19.09.22: - Rebase to alpine 3.15.
• 12.02.21: - Fix optional dependency builds in aarch64 image.
• 12.02.21: - Rebasing to alpine 3.13.
• 28.10.20: - Update to v4. Env vars EXTERNAL_URL, EXTERNAL_SERVER_PORT and AUTOJOIN_PASSWORD are deprecated and no longer have any effect. Env vars AUTOJOIN_ENABLED and AUTOJOIN_ROOM are still working but will be removed in the future in favor of synclounge's built-in var autojoin__room. If you are reverse proxying, do not forget to update your proxy settings (here and here) as the server port and addresses are changed.
• 11.10.20: - Pin builds to upstream commit 6aecc9bd while evaluating the breaking changes upstream.
• 27.09.20: - Updating the external repo endpoint.
• 01.06.20: - Rebasing to alpine 3.12.
• 11.05.20: - Initial Release.