Wireguard docker container

please refer to the linuxserver/wireguard documentation: https://hub.docker.com/r/linuxserver/wireguard

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=auto #optional
      - INTERNAL_SUBNET=10.13.13.0 #optional
    volumes:
      - /opt/wireguard-server/config:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
    restart: unless-stopped

Replace the SERVERURL with the public IP address of your WireGuard Server, because your clients will need to connect from outside your local network. You can also set this to auto, the docker container will automatically determine your public IP address and use this in the client’s configuration.

Start your WireGuard Server

Now you can start your WireGuard container with the following command and clients should be able to connect.

cd /opt/wireguard-server

docker-compose up -d

Distribute the config files to clients

You could also use the linuxserver/wireguard docker image for your clients. But I think it’s more practical for a client to install WireGuard directly on the host OS. If you want to know how to do that, you can also refer to my article about WireGuard installation and configuration on Linux.

When you have started the WireGuard container, it should automatically create all configuration files in your /opt/wireguard-server/config folder. All you need to do is to copy the corresponding peer1/peer1.conf file to your client and use that as your wg0.conf, for instance. If you want to connect mobile phones you can also just scan the peer1.png QR code, to print the QR code to the console, simply use the following command

docker exec -it wireguard /app/show-peer <peer-number>

Add additional clients

If you want to add additional clients, you simply can increase the PEERS parameter in the docker-compose.yaml file. After changing this value you need to restart your docker container with the –force-recreate parameter.

docker-compose up -d --force-recreate