docker-documentation/images/docker-wireguard.md

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:

Architecture	Tag
x86-64	amd64-latest

Usage

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

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` \
  -e INTERNAL_SUBNET=10.13.13.0 `#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
      - PEERDNS=8.8.8.8 #optional
      - INTERNAL_SUBNET=10.13.13.0 #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

Docker 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.

Ports (-p)

Parameter	Function
51820/udp	wireguard port

Environment Variables (-e)

Env	Function
PUID=1000	for UserID - see below for explanation
PGID=1000	for GroupID - see below for explanation
TZ=Europe/London	Specify a timezone to use EG Europe/London
SERVERURL=wireguard.domain.com	External IP or domain name for docker host. Used in server mode. If set to auto, the container will try to determine and set the external IP automatically
SERVERPORT=51820	External port for docker host. Used in server mode.
PEERS=1	Number of peers to create confs for. Required for server mode.
PEERDNS=8.8.8.8	DNS server set in peer/client configs. Used in server mode.
INTERNAL_SUBNET=10.13.13.0	Internal subnet for the wireguard and server and peers (only change if it clashes). Used in server mode.

Volume Mappings (-v)

Volume	Function
/config	Contains all relevant configuration files.
/lib/modules	Maps host's modules folder.

Miscellaneous Options

Parameter	Function
--sysctl=	Required for client mode.

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).

If you're on a debian/ubuntu based host with a custom or downstream distro provided kernel (ie. Pop!_OS), the container won't be able to install the kernel headers from the regular ubuntu and debian repos. In those cases, you can try installing the headers on the host via sudo apt install linux-headers-$(uname -r) (if distro version) and then add a volume mapping for /usr/src:/usr/src, or if custom built, map the location of the existing headers to allow the container to use host installed headers to build the kernel module (tested successful on Pop!_OS, ymmv).

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

Server Mode

If the environment variable PEERS is set to a number, the container will run in server mode and the necessary server and peer/client confs will be generated. The peer/client config qr codes will be output in the docker log. They will also be saved in text and png format under /config/peerX.

Variables SERVERURL, SERVERPORT, INTERNAL_SUBNET and PEERDNS are optional variables used for server mode. Any changes to these environment variables will trigger regeneration of server and peer confs. Peer/client confs will be recreated with existing private/public keys. Delete the peer folders for the keys to be recreated along with the confs.

To add more peers/clients later on, you can run docker exec -it wireguard /app/add-peer while the container is running.

To display the QR codes of active peers again, you can use the following command and list the peer numbers as arguments: docker exec -it wireguard /app/show-peer 1 4 5 (Keep in mind that the QR codes are also stored as PNGs in the config folder).

The templates used for server and peer confs are saved under /config/templates. Advanced users can modify these templates and force conf generation by deleting /config/wg0.conf and restarting the container.

Client Mode

Do not set the PEERS environment variable. Drop your client conf into the config folder as /config/wg0.conf and start the container.

Docker Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) can be accessed via the dynamic badge above.

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

Versions

• 05.04.20: - Add INTERNAL_SUBNET variable to prevent subnet clashes. Add templates for server and peer confs.
• 01.04.20: - Add show-peer script and include info on host installed headers.
• 31.03.20: - Initial Release.