Wg Gen Web

Simple Web based configuration generator for WireGuard.

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Why another one ?

All WireGuard UI implementations are trying to manage the service by applying configurations and creating network rules. This implementation only generates configuration and its up to you to create network rules and apply configuration to WireGuard. For example by monitoring generated directory with inotifywait.

The goal is to run Wg Gen Web in a container and WireGuard on host system.

Features

• Self-hosted and web based
• Automatically select IP from the netowrk pool assigned to client
• QR-Code for convenient mobile client configuration
• Enable / Disable client
• Generation of wg0.conf after any modification
• Dockerized
• Pretty cool look

Running

The easiest way to run Wg Gen Web is using the container image

docker run --rm -it -v /tmp/wireguard:/data -p 8080:8080 -e "WG_CONF_DIR=/data" vx3r/wg-gen-web:latest

Docker compose snippet

version: '3.6'
services:
  wg-gen-web:
    image: vx3r/wg-gen-web:latest
    container_name: wg-gen-web
    restart: unless-stopped
    expose:
      - "8080/tcp"
    environment:
      - WG_CONF_DIR=/data
      - WG_INTERFACE_NAME=wg0.conf
    volumes:
      - /etc/wireguard:/data

Please note that mapping /etc/wireguard to /data inside the docker, will erase your host's current configuration. If needed, please make sure to backup your files from /etc/wireguard.

A workaround would be to change the WG_INTERFACE_NAME to something different, as it will create a new interface (wg-auto.conf for example), note that if you do so, you will have to adapt your daemon accordingly.

Automatically apply changes using systemd

Using systemd.path monitor for directory changes see systemd doc

# /etc/systemd/system/wg-gen-web.path
[Unit]
Description=Watch /etc/wireguard for changes

[Path]
PathModified=/etc/wireguard

[Install]
WantedBy=multi-user.target

This .path will activate unit file with the same name

# /etc/systemd/system/wg-gen-web.service
[Unit]
Description=Restart WireGuard
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/bin/systemctl restart wg-quick@wg0.service

[Install]
WantedBy=multi-user.target

Which will restart WireGuard service

Automatically apply changes using inotifywait

For any other init system, create a daemon running this script

#!/bin/sh
while inotifywait -e modify -e create /etc/wireguard; do
  wg-quick down wg0
  wg-quick up wg0
done

How to use with existing WireGuard configuration

After first run Wg Gen Web will create server.json in data directory with all server informations.

Feel free to modify this file in order to use your existing keys

What is out of scope

• Generation or application of any iptables or nftables rules
• Application of configuration to WireGuard by Wg Gen Web itself

TODO

• Multi-user support behind Authelia (suggestions / thoughts are welcome)
• Send configs by email to client

License

• Do What the Fuck You Want to Public License. LICENSE-WTFPL or http://www.wtfpl.net