Fix: Add ui port to template (#1735)

* add ui port to template

* update changelog

src/server/utils/config.ts

@@ -15,4 +15,16 @@ export const OLD_ENV = {
 export const WG_ENV = {
   /** UI is hosted on HTTP instead of HTTPS */
   INSECURE: process.env.INSECURE === 'true',
+  /** Port the UI is listening on */
+  PORT: assertEnv('PORT'),
 };
+
+function assertEnv<T extends string>(env: T) {
+  const val = process.env[env];
+
+  if (!val) {
+    throw new Error(`Missing environment variable: ${env}`);
+  }
+
+  return val;
+}

src/server/utils/template.ts

@@ -15,6 +15,7 @@ export function template(templ: string, values: Record<string, string>) {
  * - ipv6Cidr: IPv6 CIDR
  * - device: Network device
  * - port: Port number
+ * - uiPort: UI port number
  */
 export function iptablesTemplate(templ: string, wgInterface: InterfaceType) {
   return template(templ, {
@@ -22,5 +23,6 @@ export function iptablesTemplate(templ: string, wgInterface: InterfaceType) {
     ipv6Cidr: wgInterface.ipv6Cidr,
     device: wgInterface.device,
     port: wgInterface.port.toString(),
+    uiPort: WG_ENV.PORT,
   });
 }