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linuxserver.io

Blog Discord Discourse Fleet GitHub Open Collective

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

DEPRECATION NOTICE

This image is deprecated. We will not offer support for this image and it will not be updated. The last working tag is: 1.4.0-ls145 We recommend the official image instead: https://hub.docker.com/r/guacamole/guacd

linuxserver/guacd

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

Guacd - Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. This container is only the backend server component needed to use The official or 3rd party HTML5 frontends.

guacd

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/guacd: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 ✅ arm32v7-<version tag>

Application Setup

This is a backend only service, to leverage Guacd server you need to use either the official Java frontend guacamole-client or an open source alternative like guacamole-lite.

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:
  guacd:
    image: lscr.io/linuxserver/guacd:latest
    container_name: guacd
    ports:
      - 4822:4822
    restart: unless-stopped

docker cli (click here for more info)

docker run -d \
  --name=guacd \
  -p 4822:4822 \
  --restart unless-stopped \
  lscr.io/linuxserver/guacd:latest

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 4822 Port Guacamole server listens on

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.

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 guacd /bin/bash
  • To monitor the logs of the container in realtime: docker logs -f guacd
  • container version number
    • docker inspect -f '{{ index .Config.Labels "build_version" }}' guacd
  • image version number
    • docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/guacd: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 (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 guacd
  • Let compose update all containers as necessary: docker-compose up -d
    • or update a single container: docker-compose up -d guacd
  • You can also remove the old dangling images: docker image prune

Via Docker Run

  • Update the image: docker pull lscr.io/linuxserver/guacd:latest
  • Stop the running container: docker stop guacd
  • Delete the container: docker rm guacd
  • 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 guacd

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

  • 15.02.23: - Deprecate image.
  • 11.03.22: - Bump to 1.4.0.
  • 15.05.21: - Add terminus font for SSH support.
  • 08.05.21: - Bump to 1.3.0, rebase to Alpine.
  • 27.07.20: - Bump to 1.2.0.
  • 17.04.20: - Bump back 1.1.0, rebase to focal
  • 08.02.20: - Bump to 1.1.0.
  • 25.05.19: - Initial Release.