This is a Python script to automate the generation of interface configs for multi-peer WireGuard mesh networks. The peers are all listed in an 'outline' (config file in YAML format) passed to the script. See the sample_config.yaml for format layout. The NetworkName will end up being the network interface name. The Address IPs are according to your chosen virtual 'LAN'. You can have multiple mesh networks spanning the same or different devices, as long as the names and IP ranges don't conflict.

Only specify Endpoint and ListenPort for peers that have a fixed public IP (even via dynamic DNS) and port (via NAT port forwarding). You need at least one such peer to act as a hub (= relay/bouncer), in which case also indicate AllowedIPs for that peer with the /24 suffix, which will make it accept packets destined to the whole subnet. Only have one such peer per network (= interface), though you don't need one at all. You can have only point-to-point connections: as long as a peer has a public IP and port, all the others should be able to connect to it, but won't be able to connect to other 'dynamic' peers without a hub/router/relay/bouncer.

The script requires the WireGuard wg binary to generate the private/public key-pairs for each device regenerated on each execution - so do it right before deploying to all your device ;-). The script has only been tested under Linux. It will output the interface.conf file for each device/peer, as well as a couple of bash scripts: one for automating the install/deploy of the device; the other for removing it. All that needs to be done is to copy the files to the corresponding peer/device and to execute (as root) the deploy_device.sh script - again, only under Linux, and requires systemd. If your device is running a different OS, import the corresponding interface.conf file into your WireGuard client.

As the deploy script indicates, you may also have to tweak your firewall to allow the UDP connections to get through to your device.

python3 implexus.py [-h] [-v] [-o directory] Outline

positional arguments:
  Outline        Network outline (YAML format)

options:
  -h, --help     show this help message and exit
  -v, --version  show program's version number and exit
  -o directory   Output directory (working dir if not provided)

Feel free to get in touch and post any issues and suggestions.

My other mesh-networking project: nebulder