aptalca/wireguard repository overview

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/wireguard⁠

WireGuard®⁠ is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. WireGuard is designed as a general purpose VPN for running on embedded interfaces and super computers alike, fit for many different circumstances. Initially released for the Linux kernel, it is now cross-platform (Windows, macOS, BSD, iOS, Android) and widely deployable. It is currently under heavy development, but already it might be regarded as the most secure, easiest to use, and simplest VPN solution in the industry.

⁠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 linuxserver/wireguard 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:

⁠Usage

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

⁠docker

docker create \
  --name=wireguard \
  --cap-add=NET_ADMIN \
  --cap-add=SYS_MODULE \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Europe/London \
  -e SERVERURL=wireguard.domain.com `#optional` \
  -e SERVERPORT=51820 `#optional` \
  -e PEERS=1 `#optional` \
  -e PEERDNS=8.8.8.8 `#optional` \
  -p 51820:51820/udp \
  -v /path/to/appdata/config:/config \
  -v /lib/modules:/lib/modules \
  --sysctl="net.ipv4.conf.all.src_valid_mark=1" \
  --restart unless-stopped \
  linuxserver/wireguard

⁠docker-compose

Compatible with docker-compose v2 schemas.

version: "2.1"
services:
  wireguard:
    image: linuxserver/wireguard
    container_name: wireguard
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Europe/London
      - SERVERURL=wireguard.domain.com #optional
      - SERVERPORT=51820 #optional
      - PEERS=1 #optional
    volumes:
      - /path/to/appdata/config:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
    restart: unless-stopped

⁠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.

⁠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.

⁠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)

⁠Application Setup

This image is designed for Ubuntu and Debian x86_64 systems only. During container start, it will download the necessary kernel headers and build the kernel module (until kernel 5.6, which has the module built-in, goes mainstream).

This can be run as a server or a client, based on the parameters used.

⁠Server Mode

Pass the environment variables SERVERURL, SERVERPORT, PEERS and PEERDNS, and the container will generate all necessary confs for both the server and the clients. The client config qr codes will be output in the docker log. They will also be saved in text and png format under /config/peerX.

If there is an existing /config/wg0.conf, the above environment variables won't have any affect. To add more peers/clients later on, you can run docker exec -it wireguard /app/add-peer while the container is running.

To recreate all serer and client confs, set the above env vars, delete /config/wg0.conf and restart the container. Client confs will be recreated with existing private/public keys. Delete the peer folders for the keys to be recreated along with the confs.

⁠Client Mode

Drop your client conf into the config folder as /config/wg0.conf and start the container.

⁠Support Info

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

⁠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 Run/Create

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

⁠Via Docker Compose

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

⁠Via Watchtower auto-updater (especially useful 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 wireguard
  

  Copy

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.

• You can also remove the old dangling images: docker image prune

⁠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-wireguard.git
cd docker-wireguard
docker build \
  --no-cache \
  --pull \
  -t linuxserver/wireguard: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

• 30.03.20: - Initial Release.