fixup: WG_PORT in config.js (#1056)

patch for v13

README.md

@@ -94,7 +94,7 @@ These options can be configured by setting environment variables using `-e KEY="
 | `PASSWORD` | - | `foobar123` | When set, requires a password when logging in to the Web UI. |
 | `WG_HOST` | - | `vpn.myserver.com` | The public hostname of your VPN server. |
 | `WG_DEVICE` | `eth0` | `ens6f0` | Ethernet device the wireguard traffic should be forwarded through. |
-| `WG_PORT` | `51820` | `12345` | The public UDP port of your VPN server. WireGuard will always listen on 51820 inside the Docker container. |
+| `WG_PORT` | `51820` | `12345` | The public UDP port of your VPN server. WireGuard will listen on that (othwise default) inside the Docker container. |
 | `WG_MTU` | `null` | `1420` | The MTU the clients will use. Server uses default WG MTU. |
 | `WG_PERSISTENT_KEEPALIVE` | `0` | `25` | Value in seconds to keep the "connection" open. If this value is 0, then connections won't be kept alive. |
 | `WG_DEFAULT_ADDRESS` | `10.8.0.x` | `10.6.0.x` | Clients IP address range. |

src/config.js

@@ -21,7 +21,7 @@ module.exports.WG_ALLOWED_IPS = process.env.WG_ALLOWED_IPS || '0.0.0.0/0, ::/0';
 module.exports.WG_PRE_UP = process.env.WG_PRE_UP || '';
 module.exports.WG_POST_UP = process.env.WG_POST_UP || `
 iptables -t nat -A POSTROUTING -s ${module.exports.WG_DEFAULT_ADDRESS.replace('x', '0')}/24 -o ${module.exports.WG_DEVICE} -j MASQUERADE;
-iptables -A INPUT -p udp -m udp --dport 51820 -j ACCEPT;
+iptables -A INPUT -p udp -m udp --dport ${module.exports.WG_PORT} -j ACCEPT;
 iptables -A FORWARD -i wg0 -j ACCEPT;
 iptables -A FORWARD -o wg0 -j ACCEPT;
 `.split('\n').join(' ');
@@ -29,7 +29,7 @@ iptables -A FORWARD -o wg0 -j ACCEPT;
 module.exports.WG_PRE_DOWN = process.env.WG_PRE_DOWN || '';
 module.exports.WG_POST_DOWN = process.env.WG_POST_DOWN || `
 iptables -t nat -D POSTROUTING -s ${module.exports.WG_DEFAULT_ADDRESS.replace('x', '0')}/24 -o ${module.exports.WG_DEVICE} -j MASQUERADE;
-iptables -D INPUT -p udp -m udp --dport 51820 -j ACCEPT;
+iptables -D INPUT -p udp -m udp --dport ${module.exports.WG_PORT} -j ACCEPT;
 iptables -D FORWARD -i wg0 -j ACCEPT;
 iptables -D FORWARD -o wg0 -j ACCEPT;
 `.split('\n').join(' ');