wg-auto

Automated shell script to set up WireGuard on OpenWRT or generate site-to-site WireGuard config files.

wg-auto.sh

This script creates 4 peers with usernames 'alpha', 'bravo', 'charlie', and 'delta' on a lan network (ref create_firewall_zone in wg-auto.sh) with WireGuard interface wg0 by default.

Use wg-auto.env.sh as a starting point to make your changes, run with sh wg-auto.sh wg-auto.local-network.env.sh.

This script will keep pre-existing peer keys when you re-run this script, if this is not what you need, just delete the peer keys in the config/${path_prefix}/peers directory.

wg-vpc.sh

This script only generates WireGuard config files to set up site-to-site VPN, for example, your local network with AWS VPC.

Use wg-vpc.env.sh as a starting point to make your changes, run with sh wg-vpc.sh wg-vpc.aws-vpc.env.sh.

Required Changes

• Update endpoint for peers config with your DDNS domain or fixed endpoint,
• Update server_site_ipcidr with your server/home network IP CIDR,
  • If you want to route all traffic with WireGuard, modify peer_allowed_ips=0.0.0.0/0 in wg-auto.env.sh, then uncomment the DNS = ${server_IP} in create_peer_config function.

Optional Changes

• Modify usernames with more or less usernames to create any number of peers
  • Linux interface name should no longer than 15 characters
• path_prefix is optional, this variable only affects file path for peers config, use your device prefix to meet your need
• The create_server_config and append_peer_to_server_config functions are used to create equivalent standard server configurations for other purposes, these function does not affect OpenWRT setup.

Reference

• [OpenWrt Wiki] WireGuard multi-client server automated